cometadata/datacite-rtg-text-other-reclassification-records huggingface dataset:
Quality management: success and failure factors for new global product development in global quick service restaurants: a case study of McDonald's Egypt
Creators: name: Abdelgawwad, Mohamed Abdelgawwad Aly
Publisher: name: Cardiff Metropolitan University
Year: 2022
Subjects: Production and operations management

description: The aim of this study was to investigate the critical success factors for new glocal product development activities through a single case study of McDonald's Egypt with two embedded units of analysis - two new glocal products - launched in Egypt: the failing McFalafel and the successful McArabia. The study involved a case study of four global and four local QSRs in Egypt through three phases of data collection involving in-depth semi-structured interviews with QSR experts and senior managers supplemented by the analysis of relevant documents. Phase one focused on external factors driving the new product development process. Phase two explored internal and product-related factors. Phase three focused on the new glocal product development process itself. A model of glocalisation through new glocal product development by global QSRs in non-Western countries (Egypt) identifying the critical success factors for new glocal products was developed. The model shows the interrelationships between a complex set of factors that can be used by practitioners to enhance the chances of success for new glocal products in non-Western countries.
A Robust Determination of Milky Way Satellite Properties using Hierarchical Mass Modeling
Creators: name: Martinez, Gregory D.
Publisher: name: arXiv
Year: 2013
Subjects: subject: Astrophysics of Galaxies (astro-ph.GA)
subject: FOS: Physical sciences

description: We introduce a new methodology to robustly determine the mass profile, as well as the overall distribution, of Local Group satellite galaxies. Specifically we employ a statistical multilevel modelling technique, Bayesian hierarchical modelling, to simultaneously constrain the properties of individual Local Group Milky Way satellite galaxies and the characteristics of the Milky Way satellite population. We show that this methodology reduces the uncertainty in individual dwarf galaxy mass measurements up to a factor of a few for the faintest galaxies. We find that the distribution of Milky Way satellites inferred by this analysis, with the exception of the apparent lack of high-mass haloes, is consistent with the Lambda cold dark matter (Lambda-CDM) paradigm. In particular we find that both the measured relationship between the maximum circular velocity and the radius at this velocity, as well as the inferred relationship between the mass within 300 pc and luminosity, match the values predicted by Lambda-CDM simulations for halos with maximum circular velocities below 20 km/sec. Perhaps more striking is that this analysis seems to suggest a more cusped "average" halo shape that is shared by these galaxies. While this study reconciles many of the observed properties of the Milky Way satellite distribution with that of Lambda-CDM simulations, we find that there is still a deficit of satellites with maximum circular velocities of 20-40 km/sec.
description: 14 pages, 4 figures, 3 tables
title: Editorial
Creators: name: Planck, Dieter
Publisher: name: University Library Heidelberg
Year: 2014

description: Denkmalpflege in Baden-Württemberg – Nachrichtenblatt der Landesdenkmalpflege, Bd. 23, Nr. 2 (1994), Beginn und Erscheinungsfrequenz: Ausgaben pro Band: 4
A topological necessary condition for the existence of compact Clifford-Klein forms
Creators: name: Morita, Yosuke
Publisher: name: arXiv
Year: 2013
Subjects: subject: Differential Geometry (math.DG)
subject: Group Theory (math.GR)
subject: Geometric Topology (math.GT)
subject: FOS: Mathematics
subject: Primary 57S30, Secondary 57T15, 57R20, 53C30, 22E40

description: We provide a necessary condition for the existence of a compact Clifford-Klein form of a given homogeneous space of reductive type. The key to the proof is to combine a result of Kobayashi-Ono with an elementary fact that certain two different Clifford-Klein forms have the same cohomology ring. We give some examples, SL(p+q, R)/SO(p, q) (p, q: odd) for instance, of homogeneous spaces which do not admit compact Clifford-Klein forms.
description: 16 pages, revised following referee's comments, to appear in Journal of Differential Geometry
Assessing the thermal performance of buildings at the construction stage using thermography. Development and evaluation of a testing approach in the context of new housing in Wales
Creators: name: Taylor, Tim
Publisher: name: Cardiff Metropolitan University
Year: 2022
Subjects: Building science, technologies and systems

description: At present there are concerns that new housing in the UK under-performs in terms of energy-efficiency. In research studies where the thermal performance of the building fabric has been measured, post-construction, significant gaps between design predictions and the as-built performance of new housing have been found. This thesis is concerned with how thermography may be used to assess the thermal performance of new housing during the construction process. The practical utility of this testing approach, which has not been investigated in-depth by previous research, is to identify performance issues at a stage when undertaking remedial work is less costly and disruptive. Moreover, by identifying issues that could reduce the energy-efficiency of the building fabric, these tests could help address the observed "performance gap". An approach for using thermography at different stages of construction has been developed through practical case studies and experimental work. The complementary use of heat transfer modelling and thermography is also explored. Finally, through interviews with industry professionals, the context of implementing tests within UK housing development practices is examined. The results of applying the testing approach demonstrate that beneficial feedback can be obtained without significant interruption to construction activities. However, test procedures need to be modified according to the stage and method of construction. It is proposed that heat transfer modelling can inform the interpretation of test results and analysis of defect severity. For the testing approach to be implemented more widely, there would need to be further development and trials on different types of construction and the oversight of an independent body to establish its credibility. In conclusion, thermography has the potential alongside other testing and inspection practices to help improve standards of site construction. However, there are limitations to its use which need to be considered if such tests are to be implemented effectively.
Impurity bands in magnetic superconductors with spin density wave
Creators: name: Dzero, Maxim
name: Levchenko, Alex
Publisher: name: arXiv
Year: 2022
Subjects: subject: Superconductivity (cond-mat.supr-con)
subject: FOS: Physical sciences

description: Magnetic superconductors define a broad class of strongly correlated materials in which superconductivity may coexist with either localized or itinerant long-range magnetic order. In this work we consider a multiband model of a disordered magnetic superconductor which realizes coexistence of unconventional superconductivity and a spin-density-wave. We derive an exact $T$-matrix and compute a single particle density of states in this system. In a purely superconducting state the interband scattering potential leads to an appearance of the localized Yu-Shiba-Rusinov bound states. Our main finding is that in the fairly broad swath of the coexistence region superconductivity remains fully gapped despite the presence of the impurity bands. We also discuss the effects of spatial inhomogeneities on the density of states in strongly contaminated superconductors.
description: 11 pages, 4 figures [Annals of Physics special issue on selected topics in condensed matter theory]
One-dimensional Bose-Hubbard model with pure three-body interactions
Creators: name: Sowiński, Tomasz
Publisher: name: arXiv
Year: 2013
Subjects: subject: Quantum Gases (cond-mat.quant-gas)
subject: Quantum Physics (quant-ph)
subject: FOS: Physical sciences

description: The extended Bose-Hubbard model with pure three-body local interactions is studied using the Density Matrix Renormalization Group approach. The shapes of the first two insulating lobes are discussed, and the values of the critical tunneling for which the system undergoes the quantum phase transition from insulating to superfluid phase are predicted. It is shown that stability of insulating phases, in contrast to the standard Bose-Hubbard model, is enhanced for larger fillings. It is also shown that, on the tip of the boundary of the insulating phase, the model under consideration belongs to the Berenzinskii-Kosterlitz-Thouless universality class.
description: Author version. The original publication is available at http://www.springerlink.com
title: Die Grusen-Villa, ein Bau dokumentiert wirtschaftliche Prosperität
Creators: name: Jacobs, Friedrich
Publisher: name: University Library Heidelberg
Year: 2014

description: Denkmalpflege in Baden-Württemberg – Nachrichtenblatt der Landesdenkmalpflege, Bd. 23, Nr. 2 (1994), Beginn und Erscheinungsfrequenz: Ausgaben pro Band: 4
title: Editorial
Creators: name: Planck, Dieter
Publisher: name: University Library Heidelberg
Year: 2014

description: Denkmalpflege in Baden-Württemberg – Nachrichtenblatt der Landesdenkmalpflege, Bd. 23, Nr. 3 (1994), Beginn und Erscheinungsfrequenz: Ausgaben pro Band: 4
title: Die Dienststellen des Landesdenkmalamtes
Creators: name: Redaktion, Die
Publisher: name: University Library Heidelberg
Year: 2014

description: Denkmalpflege in Baden-Württemberg – Nachrichtenblatt der Landesdenkmalpflege, Bd. 23, Nr. 3 (1994), Beginn und Erscheinungsfrequenz: Ausgaben pro Band: 4
Shearing a glass and the role of pin-delay in models of interface depinning
Creators: name: Papanikolaou, Stefanos
Publisher: name: arXiv
Year: 2013
Subjects: subject: Materials Science (cond-mat.mtrl-sci)
subject: Disordered Systems and Neural Networks (cond-mat.dis-nn)
subject: Soft Condensed Matter (cond-mat.soft)
subject: Adaptation and Self-Organizing Systems (nlin.AO)
subject: FOS: Physical sciences

description: When a disordered solid is sheared, yielding is followed by the onset of intermittent response that is characterized by slip in local regions usually labeled shear-transformation zones (STZ). Such intermittent response resembles the behavior of earthquakes or contact depinning, where a well-defined landscape of pinning disorder prohibits the deformation of an elastic medium. Nevertheless, a disordered solid is evidently different in that pinning barriers of particles are due to neighbors that are also subject to motion. Microscopic yielding leads to destruction of the local microstructure and local heating. It is natural to assume that locally a liquid emerges for a finite timescale before cooling down to a transformed configuration. For including this characteristic transient in glass depinning models, we propose a general mechanism that involves a "pin-delay" time Tpd, during which each region that slipped evolves as a fluid. The new timescale can be as small as a single avalanche time-step. We demonstrate that the inclusion of this mechanism causes a drift of the critical exponents towards higher values for the slip sizes $τ$, until a transition to permanent shear-banding behavior happens causing almost oscillatory, stick-slip response. Moreover, it leads to a proliferation of large events that are highly inhomogeneous and resemble sharp slip band formation. Our model appears to be qualitatively consistent with recent experiments and simulations of disordered solids under shear.
description: 5 pages, 4 figures
A "parallel universe" scheme for crack nucleation in the phase field approach to fracture
Creators: name: Chen, Yihao
name: Shen, Yongxing
Publisher: name: arXiv
Year: 2022
Subjects: subject: Computational Engineering, Finance, and Science (cs.CE)
subject: FOS: Computer and information sciences

description: Crack nucleation is crucial in many industrial applications. The phase field method for fracture transforms the crack nucleation problem into a minimization problem of the sum of the elastic potential energy and the crack surface energy. Due to the polyconvexity of the formulation, starting from a crackless solid, a standard Newton iteration may lead to a solution with no crack, even though a cracked solution has a lower total energy. As such, the critical load for cracking is highly overestimated. Here, we propose an algorithm termed "parallel universe" algorithm to capture the global minimum. This algorithm has two key ingredients: (a) a necessary condition for cracking solely based on the current crackless solution, and (b) beginning from when this condition is met, Newton iteration with two initial guesses, a crackles one and a cracked one, will both be performed and the converged candidate solution with lower energy is accepted as the solution at that load step. Once the cracked candidate solution is accepted, the crackless one is discarded, i.e., only one universe is retained. This cracked initial guess is obtained only once for all load steps by solving a series of similar minimization problems with a progressively reduced critical crack energy release rate. Numerical examples with isotropic and anisotropic critical crack energy release rates indicate that the proposed algorithm is more reliable (as there is no need to retrace) and more efficient than the standard Newton iteration and a well-known backtracking algorithm.
The Authorization and Glorification of Plunder
Creators: name: James, Malcolm
Publisher: name: Cardiff Metropolitan University
Year: 2022
Subjects: Public economics - taxation and revenue

description: Research in taxation often treats it as a branch of law or economics, but in this thesis I argue that this obscures the fact that tax systems are not based on scientific, techno-rational principles, but are socially constructed phenomena, embodying fundamental, value-based decisions imbricated in power relationships. I demonstrate that throughout history tax systems have reflected the prevailing state form and the dominant power relationships underpinning them and that we are currently living in a neoliberal state, in which societal relations are determined by economic principles. I therefore argue that the UK tax system tends to be utilized to encourage individuals to engage in economic, entrepreneurial activity and are presented as being governed by techno-rational, economic principles, but are, in fact, a rationalizing discourse for the transfer of power from labour to capital and from poorer to wealthier taxpayers. This transformation is underpinned by the exercise of power, but in a neoliberal state power operates in a covert, capillary fashion through assemblages and the construction of knowledge, rather than in an overt, hierarchical fashion. I demonstrate how the contemporary debates relating to tax simplification and the use of general principles rather than detailed rules in tax legislation have been, or might be, used to further entrench neoliberal values in the tax system, but that the failure to achieve significant simplification due to its open and transparent nature demonstrates the limits of power and the more opaque nature of general principles might have more potential for achieving this. However, no power can be absolute and I argue that the increased public interest in and awareness of taxation since 2010, which led to the emergence of UK Uncut, demonstrates that there is always the potential for resistance to a hegemonic discourse, which may lead to the emergence of alternative discourses.
title: Inhalt
Creators: name: Redaktion, Die
Publisher: name: University Library Heidelberg
Year: 2014

description: Denkmalpflege in Baden-Württemberg – Nachrichtenblatt der Landesdenkmalpflege, Bd. 24, Nr. 1 (1995), Beginn und Erscheinungsfrequenz: Ausgaben pro Band: 4
title: Die Restaurierung der Hölzer aus dem römischen Weihebezirk von Osterburken
Creators: name: Frey, Wolfgang
Publisher: name: University Library Heidelberg
Year: 2014

description: Denkmalpflege in Baden-Württemberg – Nachrichtenblatt der Landesdenkmalpflege, Bd. 24, Nr. 1 (1995), Beginn und Erscheinungsfrequenz: Ausgaben pro Band: 4
Computation of hyperspherical Bessel functions
Creators: name: Tram, Thomas
Publisher: name: arXiv
Year: 2013
Subjects: subject: Instrumentation and Methods for Astrophysics (astro-ph.IM)
subject: Cosmology and Nongalactic Astrophysics (astro-ph.CO)
subject: Computational Physics (physics.comp-ph)
subject: FOS: Physical sciences

description: In this paper we present a fast and accurate numerical algorithm for the computation of hyperspherical Bessel functions of large order and real arguments. For the hyperspherical Bessel functions of closed type, no stable algorithm existed so far due to the lack of a backwards recurrence. We solved this problem by establishing a relation to Gegenbauer polynomials. All our algorithms are written in C and are publicly available at Github [https://github.com/lesgourg/class_public]. A Python wrapper is available upon request.
description: 13 pages, 3 figures. Accepted for publication in Communications in Computational Physics
On what Ontology Is and not-Is
Creators: name: Verelst, Karin
Publisher: name: arXiv
Year: 2008
Subjects: subject: History and Overview (math.HO)
subject: Logic (math.LO)
subject: FOS: Mathematics
subject: 01A20, 03A05

description: In this paper I study the connection between logic and metaphysics in Plato's participation theory, from the structural properties of the latter. Although Plato was the first ever to formulate the contradiction principle explicitly (in the Phaedo), the logic underlying his system appears to be paraconsistent. This confirms an earlier suggestion by G. Priest. Its technical characteristics and the textual evidence supporting this interpretation are both studied in detail.
description: 27 pages, 6 figures
Supersymmetric flat directions and resonant gravitino production
Creators: name: Mahajan, Namit
name: Rangarajan, Raghavan
name: Sarkar, Anjishnu
Publisher: name: arXiv
Year: 2013
Subjects: subject: Cosmology and Nongalactic Astrophysics (astro-ph.CO)
subject: High Energy Physics - Phenomenology (hep-ph)
subject: FOS: Physical sciences

description: We study resonant gravitino production in the early Universe in the presence of SUSY flat directions whose large VEVs break some but not all gauge symmetries. We find that for a large region of parameter space the gravitino abundance is several orders of magnitude larger than the cosmological upper bound. Since flat directions with large VEVs are generically expected in supersymmetric theories this result further exacerbates the gravitino problem.
description: 5 pages, matches the published version. Minor changes in the text; references added
title: Warum nicht konservieren?
Creators: name: Fahrbach, Ute
Publisher: name: University Library Heidelberg
Year: 2014

description: Denkmalpflege in Baden-Württemberg – Nachrichtenblatt der Landesdenkmalpflege, Bd. 24, Nr. 1 (1995), Beginn und Erscheinungsfrequenz: Ausgaben pro Band: 4
4. Infinity and the Sublime
Creators: name: Verelst, Karin
Publisher: name: GISI - UniTO
Year: 2013

description: In their recent work, L. Graham and J.-M. Kantor discuss a remarkable connection between diverging conceptions of the mathematical infinite in Russia and France at the beginning of the twentieth century and the religious convictions of their respective authors. They expand much more on the Russian side of the cultural equation they propose; I do believe, however, that the French (or rather ‘West European’) side is more complex than it seems, and that digging deeper into it is worthwhile. In this paper I shall therefore broaden the path laid out in Graham and Kantor’s work, by connecting two different strands of research concerning the origin of what I loosely call ‘formal’ ideas: firstly, the rich but complex relation between logic and rhetoric throughout European cultural history, and secondly, the impact of religious convictions on the formation of certain mathematical and scientific ideas during Renaissance and Early Modernity, especially but not exclusively in France.
description: Journal of Interdisciplinary History of Ideas, Vol 2, No 4 (2013)
Analysis of Scientific Cloud Computing requirements
Creators: name: García, Álvaro López
name: del Castillo, Enol Fernández
Publisher: name: arXiv
Year: 2013
Subjects: subject: Distributed, Parallel, and Cluster Computing (cs.DC)
subject: Computational Engineering, Finance, and Science (cs.CE)
subject: FOS: Computer and information sciences

description: While the requirements of enterprise and web applications have driven the development of Cloud computing, some of its key features, such as customized environments and rapid elasticity, could also benefit scientific applications. However, neither virtualization techniques nor Cloud-like access to resources is common in scientific computing centers due to the negative perception of the impact that virtualization techniques introduce. In this paper we discuss the feasibility of the IaaS cloud model to satisfy some of the computational science requirements and the main drawbacks that need to be addressed by cloud resource providers so that the maximum benefit can be obtained from a given cloud infrastructure.
Late twentieth century cultural change and the decline and attempted rejuvenation of the British seaside resort as a long holiday destination: A case study of Rhyl, North Wales
Creators: name: Gale, Timothy John
Publisher: name: Cardiff Metropolitan University
Year: 2022
Subjects: Tourism management
Tourism marketing
Tourism resource appraisal
Tourism economics
Heritage tourism, visitor and audience studies
Recreation, leisure and tourism geography

description: Between 1979 and 1988, the number of visitor nights spent at British seaside resorts declined by 39 million, or 27 per cent (Wales Tourist Board, 1992). Several explanations have been proposed for this relatively sudden downturn in fortunes, ranging from the emergence of competition (within the market for holidays of four nights or more) from overseas resorts offering virtually guaranteed sunshine, to the deteriorating environmental quality of a product built for the nineteenth, as opposed to the twentieth, century. Rarely, however, do these explanations transcend the 'symptoms' of resort decline, to interrogate the 'root causes'. Accordingly, this study interprets the influence of late twentieth century cultural change (to wit, the transition from modernism to postmodernism as dominant cultural 'formations' or 'experiences') upon the production of the tourism resource(s) and place image(s) of Rhyl (a traditional resort on the North Wales coast), as mediated by the local state, with a view to identifying those material and symbolic transformations consistent with its decline and attempted rejuvenation as a long holiday destination. This was operationalised via a reading of Rhyl's townscape and municipal brochure as 'text', for the period 1951 to 1996 (using the analytical methods of iconography' and 'semiotics'), and a form of records analysis known as 'tracking', as applied to the committee minutes of successive local authorities with responsibility for the provision and promotion of the Rhyl 'product', namely Rhyl Urban District Council and Rhuddlan Borough Council (pre and post 1974, respectively). The study's findings were conceptualised in the form of a model, and shown to be consistent with the ontology and epistemology of critical realism (which holds that social reality is not constructed by individuals or science, but by underlying 'generative mechanisms').
Infinity and the Sublime
Creators: name: Verelst, Karin
Publisher: name: arXiv
Year: 2010
Subjects: subject: History and Overview (math.HO)
subject: FOS: Mathematics
subject: 01A40

description: In this paper we intend to connect two different strands of research concerning the origin of what I shall loosely call "formal" ideas: firstly, the relation between logic and rhetoric - the theme of the 2006 Cambridge conference to which this paper was a contribution -, and secondly, the impact of religious convictions on the formation of certain twentieth century mathematical concepts, as brought to the attention recently by the work of L. Graham and J.-M. Kantor. In fact, we shall show that the latter question is a special case of the former, and that investigation of the larger question adds to our understanding of the smaller one. Our approach will be primarily historical.
description: 29 pages and 3 figures
Quantum control of hole spin qubits in double quantum dots
Creators: name: Fernandez-Fernandez, D.
name: Ban, Y.
name: Platero, G.
Publisher: name: arXiv
Year: 2022
Subjects: subject: Mesoscale and Nanoscale Physics (cond-mat.mes-hall)
subject: FOS: Physical sciences

description: Hole spin qubits in semiconductor quantum dots (QDs) are promising candidates for quantum information processing due to their weak hyperfine coupling to nuclear spins, and to the strong spin-orbit coupling which allows for rapid operation time. We propose a coherent control on two heavy-hole spin qubits in a double QD by a fast adiabatic driving protocol, which helps to achieve higher fidelities than other experimentally commonly used protocols as linear ramping, $π$-pulses or Landau-Zener passages. Using fast quasiadiabatic driving via spin-orbit coupling, it is possible to reduce charge noise significantly for qubit manipulation and achieve high robustness for the qubit initialization. We also implement one and two-qubit gates, in particular, NOT, CNOT, and SWAP-like gates, of hole spins in a double QD achieving fidelities above $99\%$, exhibiting the capability of hole spins to implement universal gates for quantum computing.
description: 18 pages, 17 figures
title: Veröffentlichungen des Landesdenkmalamtes
Creators: name: Redaktion, Die
Publisher: name: University Library Heidelberg
Year: 2014

description: Denkmalpflege in Baden-Württemberg – Nachrichtenblatt der Landesdenkmalpflege, Bd. 24, Nr. 1 (1995), Beginn und Erscheinungsfrequenz: Ausgaben pro Band: 4
title: Bad Wildbad: Städtebauliches Beispiel einer Bäderstadt
Creators: name: Wilhelm, Johannes
Publisher: name: University Library Heidelberg
Year: 2014

description: Denkmalpflege in Baden-Württemberg – Nachrichtenblatt der Landesdenkmalpflege, Bd. 25, Nr. 1 (1996), Beginn und Erscheinungsfrequenz: Ausgaben pro Band: 4
Some remarks on D-branes and defects in Liouville and Toda field theories
Creators: name: Sarkissian, Gor
Publisher: name: arXiv
Year: 2011
Subjects: subject: High Energy Physics - Theory (hep-th)
subject: FOS: Physical sciences

description: In this paper we analyze the Cardy-Lewellen equation in general diagonal model. We show that in these models it takes simple form due to some general properties of conformal field theories, like pentagon equations and OPE associativity. This implies, that the Cardy-Lewellen equation has simple form also in non-rational diagonal models. We specialize our finding to the Liouville and Toda field theories. In particular we prove, that conjectured recently defects in Toda field theory indeed satisfy the cluster equation. We also derive the Cardy-Lewellen equation in all $sl(n)$ Toda field theories and prove that the forms of boundary states found recently in $sl(3)$ Toda field theory hold in all $sl(n)$ theories as well.
description: 30 pages, some comments, explanations and references added
title: Denkmalprobleme bei unseren Staatsbädern
Creators: name: Büche, Meinrad
Publisher: name: University Library Heidelberg
Year: 2014

description: Denkmalpflege in Baden-Württemberg – Nachrichtenblatt der Landesdenkmalpflege, Bd. 25, Nr. 1 (1996), Beginn und Erscheinungsfrequenz: Ausgaben pro Band: 4
Protecting qutrit-qutrit entanglement by weak measurement and reversal
Creators: name: Xiao, Xing
name: Li, Yan-Ling
Publisher: name: arXiv
Year: 2013
Subjects: subject: Quantum Physics (quant-ph)
subject: FOS: Physical sciences

description: Entangled states in high dimensional systems are of great interest due to the extended possibilities they provide in quantum information processing. Recently, Sun et al. [Phys. Rev. A 82, 052323 (2010)] and Kim et al. [Nat. Phys. 8, 117 (2012)] pointed out that weak measurement and quantum weak measurement reversal can actively combat decoherence. We generalize their studies from qubits to qutrits under amplitude damping decoherence. We find that the qutrit-qutrit entanglement can be partially retrieved for certain initial states when only weak measurement reversals are performed. However, we can completely defeat amplitude damping decoherence for any initial states by the combination of prior weak measurements and post optimal weak measurement reversals. The experimental feasibility of our schemes is also discussed.
description: 7 pages, 4 figures. Some typos corrected
title: Personalia ; Abbildungsnachweis
Creators: name: Redaktion, Die
Publisher: name: University Library Heidelberg
Year: 2014

description: Denkmalpflege in Baden-Württemberg – Nachrichtenblatt der Landesdenkmalpflege, Bd. 25, Nr. 1 (1996), Beginn und Erscheinungsfrequenz: Ausgaben pro Band: 4
Defect scaling Lee-Yang model from the perturbed DCFT point of view
Creators: name: Bajnok, Zoltan
name: Hollo, Laszlo
name: Watts, Gerard
Publisher: name: arXiv
Year: 2013
Subjects: subject: High Energy Physics - Theory (hep-th)
subject: FOS: Physical sciences

description: We analyze the defect scaling Lee-Yang model from the perturbed defect conformal field theory (DCFT) point of view. First the defect Lee-Yang model is solved by calculating its structure constants from the sewing relations. Integrable defect perturbations are identified in conformal defect perturbation theory. Then pure defect flows connecting integrable conformal defects are described. We develop a defect truncated conformal space approach (DTCSA) to analyze the one parameter family of integrable massive perturbations in finite volume numerically. Fusing the integrable defect to an integrable boundary the relation between the IR and UV parameters can be derived from the boundary relations. We checked these results by comparing the spectrum for large volumes to the scattering theory.
description: LaTeX, 33 pages, 9 figures, figures added
title: Dienststellen des Landesdenkmalamtes
Creators: name: Redaktion, Die
Publisher: name: University Library Heidelberg
Year: 2014

description: Denkmalpflege in Baden-Württemberg – Nachrichtenblatt der Landesdenkmalpflege, Bd. 25, Nr. 1 (1996), Beginn und Erscheinungsfrequenz: Ausgaben pro Band: 4
Newton vs. Leibniz: Intransparency vs. Inconsistency
Creators: name: Verelst, Karin
Publisher: name: arXiv
Year: 2012
Subjects: subject: History and Philosophy of Physics (physics.hist-ph)
subject: FOS: Physical sciences
subject: O1A45

description: We investigate the structure common to causal theories that attempt to explain a (part of) the world. Causality implies conservation of identity, itself a far from simple notion. It imposes strong demands on the universalizing power of the theories concerned. These demands are often met by the introduction of a metalevel which encompasses the notions of 'system' and 'lawful behaviour'. In classical mechanics, the division between universal and particular leaves its traces in the separate treatment of cinematics and dynamics. This analysis is applied to the mechanical theories of Newton and Leibniz, with some surprising results.
Is the modification of soundscapes the most effective coping behaviour when attempting creative tasks in non-ideal environs?
Creators: name: Alhussain, Danah Fouad
Publisher: name: Cardiff Metropolitan University
Year: 2022
Subjects: Architectural design
Interior design
Automation and technology in building and construction
Design practice and methods
Industrial and product design
Interaction and experience design
Other education not elsewhere classified
Acoustics and noise control (excl. architectural acoustics)

description: This Thesis investigates personal private sound control via headsets (modified soundscape) to mitigate the perceived deficiencies of inadequate environs. This is achieved by exploring the benefit of using soundscape as a key element used by students in such learning environs. It examines the result of conducting a creative task while exposed to different sound conditions. These results were then assessed according to two aspects of assessments: Self-assessment (by participants) and independent judgments (Design Jury) and the results of those assessments were compared. The result of this research showed a significant difference between the self-assessment and the independent judgment in terms of the most effective sound condition which was associated with increased participants’ creativity.
Unparticle Casimir effect
Creators: name: Frassino, Antonia M.
name: Nicolini, Piero
name: Panella, Orlando
Publisher: name: arXiv
Year: 2013
Subjects: subject: High Energy Physics - Phenomenology (hep-ph)
subject: High Energy Physics - Theory (hep-th)
subject: FOS: Physical sciences

description: In this paper we present the un-Casimir effect, namely the study of the Casimir energy in the presence of an unparticle component in addition to the electromagnetic field contribution. The distinctive feature of the un-Casimir effect is a fractalization of metallic plates. This result emerges through a new dependence of the Casimir energy on the plate separation that scales with a continuous power controlled by the unparticle dimension. As long as the perfect conductor approximation is valid, we find bounds on the unparticle scale that are independent of the effective coupling constant between the scale invariant sector and ordinary matter. We find regions of the parameter space such that for plate distances around $5μ$m and larger the un-Casimir bound wins over the other bounds.
description: 13 pages, 3 figures; v2: improved discussion, additional references, v3: title slightly changed, version matching that in press on Physics Letters B
On homotopy invariants of combings of 3-manifolds
Creators: name: Lescop, Christine
Publisher: name: arXiv
Year: 2012
Subjects: subject: Geometric Topology (math.GT)
subject: FOS: Mathematics

description: Combings of oriented compact 3-manifolds are homotopy classes of nowhere zero vector fields in these manifolds. A first known invariant of a combing is its Euler class, that is the Euler class of the normal bundle to a combing representative in the tangent bundle of the 3-manifold $M$. It only depends on the Spin$^c$-structure represented by the combing. When this Euler class is a torsion element of $H^2(M;Z)$, we say that the combing is a torsion combing. Gompf introduced a $Q$-valued invariant $θ_G$ of torsion combings of closed 3-manifolds that distinguishes all combings that represent a given Spin$^c$-structure. This invariant provides a grading of the Heegaard Floer homology $\hat{HF}$ for manifolds equipped with torsion Spin$^c$-structures. We give an alternative definition of the Gompf invariant and we express its variation as a linking number. We also define a similar invariant $p_1$ for combings of manifolds bounded by $S^2$. We show that the $Θ$-invariant, that is the simplest configuration space integral invariant of rational homology spheres, is naturally an invariant of combings of rational homology balls, that reads $(\frac14p_1 + 6 λ)$ where $λ$ is the Casson-Walker invariant. The article also includes a mostly self-contained presentation of combings.
description: 31 pages + 1 page at the end that summarizes the changes with respect to the first version
title: Historische Kulturlandschaftselemente als Schutzgut
Creators: name: Eidloth, Volkmar
name: Goer, Michael
Publisher: name: University Library Heidelberg
Year: 2014

description: Denkmalpflege in Baden-Württemberg – Nachrichtenblatt der Landesdenkmalpflege, Bd. 25, Nr. 2 (1996), Beginn und Erscheinungsfrequenz: Ausgaben pro Band: 4
DeepCSI: Rethinking Wi-Fi Radio Fingerprinting Through MU-MIMO CSI Feedback Deep Learning
Creators: name: Meneghello, Francesca
name: Rossi, Michele
name: Restuccia, Francesco
Publisher: name: arXiv
Year: 2022
Subjects: subject: Networking and Internet Architecture (cs.NI)
subject: Machine Learning (cs.LG)
subject: FOS: Computer and information sciences

description: We present DeepCSI, a novel approach to Wi-Fi radio fingerprinting (RFP) which leverages standard-compliant beamforming feedback matrices to authenticate MU-MIMO Wi-Fi devices on the move. By capturing unique imperfections in off-the-shelf radio circuitry, RFP techniques can identify wireless devices directly at the physical layer, allowing low-latency low-energy cryptography-free authentication. However, existing Wi-Fi RFP techniques are based on software-defined radio (SDRs), which may ultimately prevent their widespread adoption. Moreover, it is unclear whether existing strategies can work in the presence of MU-MIMO transmitters - a key technology in modern Wi-Fi standards. Conversely from prior work, DeepCSI does not require SDR technologies and can be run on any low-cost Wi-Fi device to authenticate MU-MIMO transmitters. Our key intuition is that imperfections in the transmitter's radio circuitry percolate onto the beamforming feedback matrix, and thus RFP can be performed without explicit channel state information (CSI) computation. DeepCSI is robust to inter-stream and inter-user interference being the beamforming feedback not affected by those phenomena. We extensively evaluate the performance of DeepCSI through a massive data collection campaign performed in the wild with off-the-shelf equipment, where 10 MU-MIMO Wi-Fi radios emit signals in different positions. Experimental results indicate that DeepCSI correctly identifies the transmitter with an accuracy of up to 98%. The identification accuracy remains above 82% when the device moves within the environment. To allow replicability and provide a performance benchmark, we pledge to share the 800 GB datasets - collected in static and, for the first time, dynamic conditions - and the code database with the community.
description: To be presented at the 42nd IEEE International Conference on Distributed Computing Systems (ICDCS), Bologna, Italy, July 10-13, 2022
Frieze patterns as root posets and affine triangulations
Creators: name: Cuntz, Michael
Publisher: name: arXiv
Year: 2013
Subjects: subject: Combinatorics (math.CO)
subject: FOS: Mathematics
subject: 52C35, 20F55

description: The entries of frieze patterns may be interpreted as coordinates of roots of a finite Weyl groupoid of rank two. We prove the existence of maximal elements in their root posets and classify those frieze patterns which can be used to build an affine simplicial arrangement.
description: 14 pages, 6 figures
Existence of a persistent hub in the convex preferential attachment model
Creators: name: Galashin, Pavel
Publisher: name: arXiv
Year: 2013
Subjects: subject: Probability (math.PR)
subject: FOS: Mathematics

description: A vertex of a randomly growing graph is called a persistent hub if at all but finitely many moments of time it has the maximal degree in the graph. We establish the existence of a persistent hub in the Barabási--Albert random graph model with probability one. We also extend this result to the class of convex preferential attachment graphs, where a vertex of degree $k$ gets a new edge with probability proportional to some convex function of $k$.
Cosmic microwave background spectral distortions from Rayleigh scattering at second order
Creators: name: Ota, Atsuhisa
Publisher: name: arXiv
Year: 2022
Subjects: subject: Cosmology and Nongalactic Astrophysics (astro-ph.CO)
subject: General Relativity and Quantum Cosmology (gr-qc)
subject: High Energy Physics - Phenomenology (hep-ph)
subject: High Energy Physics - Theory (hep-th)
subject: FOS: Physical sciences

description: Cosmic microwave background (CMB) spectral distortion from Rayleigh scattering is calculated for the first time in rigorous second-order cosmological perturbation theory. The new spectral distortion is sensitive to acoustic dissipation at $10^{-2}
description: 5 figures, 12 pages
First Principles Calculation of Elastic Moduli of Early-Late Transition Metal Alloys
Creators: name: Huhn, William Paul
name: Widom, Michael
name: Cheung, Andrew M.
name: Shiflet, Gary J.
name: Poon, S. Joseph
name: Lewandowski, John
Publisher: name: arXiv
Year: 2013
Subjects: subject: Materials Science (cond-mat.mtrl-sci)
subject: FOS: Physical sciences

description: Motivated by interest in the elastic properties of high strength amorphous metals, we examine the elastic properties of select crystalline phases. Using first principles methods, we calculate elastic moduli in various chemical systems containing transition metals, specifically early (Ta,W) and late (Co,Ni). Theoretically predicted alloy elastic properties are verified for Ni-Ta by comparison with experimental measurements using resonant ultrasound spectroscopy. Comparison of our computed elastic moduli with effective medium theories shows that alloying leads to enhancement of bulk moduli relative to averages of the pure elements, and considerable deviation of predicted and computed shear moduli. Specifically, we find an enhancement of bulk modulus relative to effective medium theory and propose a candidate system for high strength, ductile amorphous alloys. Trends in the elastic properties of chemical systems are analyzed using force constants, electronic densities of state and Crystal Overlap Hamilton Populations. We interpret our findings in terms of the electronic structure of the alloys.
description: 11 pages, 7 figures, 6 tables
Quantum Circuits and Spin(3n) Groups
Creators: name: Vlasov, Alexander Yu.
Publisher: name: arXiv
Year: 2013
Subjects: subject: Quantum Physics (quant-ph)
subject: Computational Complexity (cs.CC)
subject: Mathematical Physics (math-ph)
subject: FOS: Physical sciences
subject: FOS: Computer and information sciences

description: All quantum gates with one and two qubits may be described by elements of $Spin$ groups due to isomorphisms $Spin(3) \simeq SU(2)$ and $Spin(6) \simeq SU(4)$. However, the group of $n$-qubit gates $SU(2^n)$ for $n > 2$ has bigger dimension than $Spin(3n)$. A quantum circuit with one- and two-qubit gates may be used for construction of arbitrary unitary transformation $SU(2^n)$. Analogously, the `$Spin(3n)$ circuits' are introduced in this work as products of elements associated with one- and two-qubit gates with respect to the above-mentioned isomorphisms. The matrix tensor product implementation of the $Spin(3n)$ group together with relevant models by usual quantum circuits with $2n$ qubits are investigated in such a framework. A certain resemblance with well-known sets of non-universal quantum gates e.g., matchgates, noninteracting-fermion quantum circuits) related with $Spin(2n)$ may be found in presented approach. Finally, a possibility of the classical simulation of such circuits in polynomial time is discussed.
description: v1. REVTeX 4-1, 2 columns, 10 pages, no figures, v3. extended, LaTeX2e, 1 col., 23+2 pages, v4. typos, accepted for publication
A gate-programmable van der Waals metal-ferroelectric-semiconductor memory
Creators: name: Li, Wanying
name: Guo, Yimeng
name: Luo, Zhaoping
name: Han, Bo
name: Zhan, Xuepeng
name: Watanabe, Kenji
name: Taniguchi, Takashi
name: Chen, Jiezhi
name: Gao, Peng
name: Li, Xiuyan
name: Zhao, Chengxin
name: Han, Zheng Vitto
name: Wang, Hanwen
Publisher: name: arXiv
Year: 2022
Subjects: subject: Materials Science (cond-mat.mtrl-sci)
subject: Applied Physics (physics.app-ph)
subject: FOS: Physical sciences

description: Ferroelecticity, one of the keys to realize nonvolatile memories owing to the remanent electric polarization, has been an emerging phenomenon in the two-dimensional (2D) limit. Yet the demonstrations of van der Waals (vdW) memories using 2D ferroelectric materials as an ingredient are very limited. Especially, gate-tunable ferroelectric vdW memristive device, which holds promises in future neuromorphic applications, remains challenging. Here, we show a prototype gate-programmable memory by vertically assembling graphite, CuInP2S6, and MoS2 layers into a metal-ferroelectric-semiconductor architecture. The resulted devices exhibit two-terminal switchable electro-resistance with on-off ratios exceeding 105 and long-term retention, akin to a conventional memristor but strongly coupled to the ferroelectric characteristics of the CuInP2S6 layer. By controlling the top gate, Fermi level of MoS2 can be set inside (outside) of its band gap to quench (enable) the memristive behaviour, yielding a three-terminal gate programmable nonvolatile vdW memory. Our findings pave the way for the engineering of ferroelectric-mediated memories in future implementations of nanoelectronics.
A combinatorial definition of the Theta-invariant from Heegaard diagrams
Creators: name: Lescop, Christine
Publisher: name: arXiv
Year: 2014
Subjects: subject: Geometric Topology (math.GT)
subject: FOS: Mathematics

description: The invariant $Θ$ is an invariant of rational homology 3-spheres $M$ equipped with a combing $X$ over the complement of a point. It is related to the Casson-Walker invariant $λ$ by the formula $Θ(M,X)=6λ(M)+p_1(X)/4$, where $p_1$ is an invariant of combings that is simply related to a Gompf invariant. In [arXiv:1209.3219], we proved a combinatorial formula for the $Θ$-invariant in terms of Heegaard diagrams, equipped with decorations that define combings, from the definition of $Θ$ as an algebraic intersection in a configuration space. In this article, we prove that this formula defines an invariant of pairs $(M,X)$ without referring to configuration spaces, and we prove that this invariant is the sum of $6 λ(M)$ and $p_1(X)/4$ for integral homology spheres, by proving surgery formulae both for the combinatorial invariant and for $p_1$.
description: 63 pages
Efficient Quantum Algorithms for Analyzing Large Sparse Electrical Networks
Creators: name: Wang, Guoming
Publisher: name: arXiv
Year: 2013
Subjects: subject: Quantum Physics (quant-ph)
subject: Data Structures and Algorithms (cs.DS)
subject: FOS: Physical sciences
subject: FOS: Computer and information sciences

description: Analyzing large sparse electrical networks is a fundamental task in physics, electrical engineering and computer science. We propose two classes of quantum algorithms for this task. The first class is based on solving linear systems, and the second class is based on using quantum walks. These algorithms compute various electrical quantities, including voltages, currents, dissipated powers and effective resistances, in time $\operatorname{poly}(d, c, \operatorname{log}(N), 1/λ, 1/ε)$, where $N$ is the number of vertices in the network, $d$ is the maximum unweighted degree of the vertices, $c$ is the ratio of largest to smallest edge resistance, $λ$ is the spectral gap of the normalized Laplacian of the network, and $ε$ is the accuracy. Furthermore, we show that the polynomial dependence on $1/λ$ is necessary. This implies that our algorithms are optimal up to polynomial factors and cannot be significantly improved.
description: 40 pages, 2 figures. Final version
title: Inhalt
Creators: name: Redaktion, Die
Publisher: name: University Library Heidelberg
Year: 2014

description: Denkmalpflege in Baden-Württemberg – Nachrichtenblatt der Landesdenkmalpflege, Bd. 25, Nr. 4 (1996), Beginn und Erscheinungsfrequenz: Ausgaben pro Band: 4
Comments on fusion matrix in N=1 super Liouville field theory
Creators: name: Poghosyan, Hasmik
name: Sarkissian, Gor
Publisher: name: arXiv
Year: 2016
Subjects: subject: High Energy Physics - Theory (hep-th)
subject: FOS: Physical sciences

description: We study several aspects of the $N=1$ super Liouville theory. We show that certain elements of the fusion matrix in the Neveu-Schwarz sector related to the structure constants according to the same rules which we observe in rational conformal field theory. We collect some evidences that these relations should hold also in the Ramond sector. Using them the Cardy-Lewellen equation for defects is studied, and defects are constructed.
description: 28 pages, comment and reference added