cometadata/datacite-rtg-text-other-reclassification-records huggingface dataset:
Design of the photonic crystal demultiplexers for ultra-short optical pulses using the gap-maps analysis
Creators: name: Sukhoivanov, I. A.
name: Guryev, I. V.
name: Shulika, O. V.
name: Kublyk, A. V.
name: Mashoshina, O. V.
name: Mendez, E. Alvarado
name: Andrade-Lucio, J. A.
Publisher: name: arXiv
Year: 2007
Subjects: subject: Optics (physics.optics)
subject: FOS: Physical sciences

description: In the work, the new method for the design of the wavelength division multiplexer on the basis of 2D photonic crystal integrated circuit for the ultra-short pulses channel separation is proposed and investigated. The method is based on the analysis of full photonic bandgap maps that allows defining the ultra-short pulse demultiplexer parameters selection. For the method approbation, there was synthesized the device in which the wideband filters are used for the channel separation. As it was expected, the device effectively separates 50 fs pulse channels with 1.31 and 1.55 microns wavelengths. The obtained spectral characteristics and pulse pattern responses validate the efficiency of the proposed method and the applicability of such devices to the integrated photonic information processing circuits.
Robust quantum classifier with minimal overhead
Creators: name: Park, Daniel K.
name: Blank, Carsten
name: Petruccione, Francesco
Publisher: name: arXiv
Year: 2021
Subjects: subject: Quantum Physics (quant-ph)
subject: FOS: Physical sciences

description: To witness quantum advantages in practical settings, substantial efforts are required not only at the hardware level but also on theoretical research to reduce the computational cost of a given protocol. Quantum computation has the potential to significantly enhance existing classical machine learning methods, and several quantum algorithms for binary classification based on the kernel method have been proposed. These algorithms rely on estimating an expectation value, which in turn requires an expensive quantum data encoding procedure to be repeated many times. In this work, we calculate explicitly the number of repetition necessary for acquiring a fixed success probability and show that the Hadamard-test and the swap-test circuits achieve the optimal variance in terms of the quantum circuit parameters. The variance, and hence the number of repetition, can be further reduced only via optimization over data-related parameters. We also show that the kernel-based binary classification can be performed with a single-qubit measurement regardless of the number and the dimension of the data. Finally, we show that for a number of relevant noise models the classification can be performed reliably without quantum error correction. Our findings are useful for designing quantum classification experiments under limited resources, which is the common challenge in the noisy intermediate-scale quantum era.
description: 7 pages, 6 figures
A parametric study of the axisymmetric loading of an anisotropically elastic limb model by a tourniquet
Creators: name: Hodgson, Antony John
Publisher: name: University of British Columbia
Year: 2010

description: The clinical use of tourniquets has an associated nerve palsy incidence rate of approximately 0.1%. The mechanism of damage is thought to be some form of mechanical deformation. No previous work, has quantified such a mechanism. In this work, an axially compressive damage mechanism is proposed and supported by an order-of-magnitude analysis comparing it with other proposed mechanisms. Earlier attempts to model the application of a tourniquet to a limb have either not modelled the applied pressure adequately or have not made clear the connection between the mechanical properties being modelled and the induced damage. The model proposed in this paper incoporates anisotropic elastic parameters in a stress function formulation for a linearly elastic material with small deformations assumed. An analytical solution technique is developed for rectangular regions. The solution technique was applied to a close-to-isotropic case (the technique degenerates when pure isotropy is assumed) and the results were compared with an experimental investigation. Good agreement was obtained with most of the important features noted in the experimental literature, and a region of high negative axial strain was found to correlate well with observations of the locations and characteristics of the nerve lesions. A sensitivity analysis showed that the solution was relatively insensitive to the anisotropic parameters. Because of this insensitivity and the correlation of the regions of negative axial strain with the regions of damage, the model was used to suggest improvements in current tourniquet cuff designs. It was found that a smoother applied pressure distribution (sinusoidal as oposed to rectangular), a wider cuff, and an elimination of shear stress between the cuff and the skin all contributed to a decrease in the maximum negative axial strain. The last effect was not quantified, but reductions of 50-70% could be achieved by taking the first two measures.
SCRIPT - Over By Christmas - Rehearsal Draft.pdf
Creators: name: Newall, Helen
Publisher: name: Edge Hill University
Year: 2021
Subjects: subject: 190402 Creative Writing (incl. Playwriting)
subject: FOS: Arts (arts, history of arts, performing arts, music)
subject: 190404 Drama, Theatre and Performance Studies

description: Over By Christmas was a free large-scale community musical and dramatic event commemorating the early days of the First World War and the role that the railways played in the troops’ departure for the Front. It toured railway stations throughout Cheshire and Greater Manchester, including rural heritage stations and Manchester Piccadilly, and culminating in performances in St Pancras International, London. Performances were also staged at Tatton Park and Chester Cathedral and appeared on BBC and ITV. Over by Christmas won the Performing Arts category at the 2015 Cheshire West And Cheshire Arts Awards, and a national community rail award (ACoRP) for its impact on communities. The piece involved over 350 participants, over 1000 school children, and attracted a total audience of over 20,000. This script was written and the production directed to accommodate the architecture of railway platforms, across which the play was performed, and the time available for performances between arrivals and departures of trains. It was performed 47 times in more than 25 locations, from 7th September to 12th November 2014.
Relic Cosmological Vector Fields and Inflationary Gravitational Waves
Creators: name: Tishue, Avery J.
name: Caldwell, Robert R.
Publisher: name: arXiv
Year: 2021
Subjects: subject: Cosmology and Nongalactic Astrophysics (astro-ph.CO)
subject: General Relativity and Quantum Cosmology (gr-qc)
subject: FOS: Physical sciences

description: We show that relic vector fields can significantly impact a spectrum of primordial gravitational waves in the post-inflationary era. We consider a triplet of U(1) fields in a homogeneous, isotropic configuration. The interaction between the gravitational waves and the vector fields, from the end of reheating to the present day, yields novel spectral features. The amplitude, tilt, shape, and net chirality of the gravitational wave spectrum are shown to depend on the abundance of the electric- and magnetic-like vector fields. Our results show that even a modest abundance can have strong implications for efforts to detect the imprint of gravitational waves on the cosmic microwave background polarization. We find that a vector field comprising less than two percent of the energy density during the radiation dominated era can have a greater than order unity effect on the predicted inflationary gravitational wave spectrum.
description: 19 pages, 9 figures, comments welcome
Casimir effect in a superconducting cavity and the thermal controversy
Creators: name: Bimonte, Giuseppe
Publisher: name: arXiv
Year: 2008
Subjects: subject: Quantum Physics (quant-ph)
subject: Superconductivity (cond-mat.supr-con)
subject: High Energy Physics - Theory (hep-th)
subject: FOS: Physical sciences

description: One of the most important and still unresolved problems in the field of dispersion forces, is that of determining the influence of temperature on the Casimir force between two metallic plates. While alternative theoretical approaches lead to contradictory predictions for the magnitude of the effect, no experiment has yet detected the thermal correction to the Casimir force. In this paper we show that a superconducting cavity provides a new opportunity to investigate the problem of the thermal dependence of the Casimir force in real materials, by looking at the change of the Casimir force determined by a small change of temperature. The actual feasibility of the proposed scheme is briefly discussed.
description: 11 pages, 4 encapsulated figures. This in an expanded version of the previous paper, accepted for publication in Phys. Rev. A
The Millimeter-Wave Spectrum of Doubly Deuterated Propylene Oxide CH$_3$CHCD$_2$O
Creators: name: Stahl, Pascal
name: Kargin, Denis
name: Pietschnig, Rudolf
name: Giesen, Thomas F.
name: Fuchs, Guido W.
Publisher: name: arXiv
Year: 2021
Subjects: subject: Chemical Physics (physics.chem-ph)
subject: FOS: Physical sciences

description: Spectra of doubly deuterated propylene oxide, CH$_3$CHCD$_2$O, were recorded in the millimeter-wave spectral region up to 330 GHz utilizing a 2f frequency modulated Terahertz spectrometer. Rotational and centrifugal distortion constants and tunneling parameters for the description of the internal rotation of the methyl group were retrieved. The software XIAM was used to describe the A-E tunneling splitting with a frequency uncertainty of 82 kHz. Molecular parameters derived from our measurements are complemented by quantum chemical anharmonic frequency calculations on the B3LYP/augcc-pVTZ level of theory. In addition, the barrier height to internal rotation of the methyl group,V3, was derived experimentally and found to slightly differ from the value reported for the main isotopologue. In view of astrophysical observations we provide accurate line lists to search for doubly deuterated propylene oxide in space. Furthermore, we deliver improved molecular parameters to further investigate the properties of a simple chiral molecule possessing internal large amplitude motions.
description: 8 pages, 4 figures, 2 tables
Topological Uhlmann phase transitions for a spin-j particle in a magnetic field
Creators: name: Galindo, D. Morachis
name: Rojas, F.
name: Maytorena, Jesús A.
Publisher: name: arXiv
Year: 2021
Subjects: subject: Quantum Physics (quant-ph)
subject: FOS: Physical sciences

description: The generalization of the geometric phase to the realm of mixed states is known as Uhlmann phase. Recently, applications of this concept to the field of topological insulators have been made and an experimental observation of a characteristic critical temperature at which the topological Uhlmann phase disappears has also been reported. Surprisingly, to our knowledge, the Uhlmann phase of such a paradigmatic system as the spin-$j$ particle in presence of a slowly rotating magnetic field has not been reported to date. Here we study the case of such a system in a thermal ensemble. We find that the Uhlmann phase is given by the argument of a complex valued second kind Chebyshev polynomial of order $2j$. Correspondingly, the Uhlmann phase displays $2j$ singularities, occurying at the roots of such polynomials which define critical temperatures at which the system undergoes topological order transitions. Appealing to the argument principle of complex analysis each topological order is characterized by a winding number, which happen to be $2j$ for the ground state and decrease by unity each time increasing temperature passes through a critical value. We hope this study encourages experimental verification of this phenomenon of thermal control of topological properties, as has already been done for the spin-$1/2$ particle.
Photon correlation in GaAs self-assembled quantum dots
Creators: name: Kuroda, T.
name: Abbarchi, M.
name: Mano, T.
name: Watanabe, K.
name: Yamagiwa, M.
name: Kuroda, K.
name: Sakoda, K.
name: Kido, G.
name: Koguchi, N.
name: Mastrandrea, C.
name: Cavigli, L.
name: Gurioli, M.
name: Ogawa, Y.
name: Minami, F.
Publisher: name: arXiv
Year: 2008
Subjects: subject: Other Condensed Matter (cond-mat.other)
subject: FOS: Physical sciences

description: We report on photon coincidence measurement in a single GaAs self-assembled quantum dot (QD) using a pulsed excitation light source. At low excitation, when a neutral exciton line was present in the photoluminescence (PL) spectrum, we observed nearly perfect single photon emission from an isolated QD at 670 nm wavelength. For higher excitation, multiple PL lines appeared on the spectra, reflecting the formation of exciton complexes. Cross-correlation functions between these lines showed either bunching or antibunching behavior, depending on whether the relevant emission was from a biexciton cascade or a charged exciton recombination.
description: 5 pages, 3 figures
Holothuria bataviae Ludwig 1889
Creators: name: Reich, Mike
Publisher: name: Zenodo
Year: 2015
Subjects: Biodiversity
Taxonomy
Animalia
Echinodermata
Holothuroidea
Aspidochirotida
Holothuriidae
Holothuria
Holothuria bataviae

description: Holothuria bataviae Ludwig, 1889 and Holothuria kurti Ludwig, 1891
 Unfortunately, Ludwig introduced two nomina nova for Holothuria lamperti Sluiter, 1889 [non Holothuria lamperti Ludwig, 1886a] (see Table 3).
 Holothuria bataviae was erected by Ludwig on page 174 (footnote) (= fascicles 5/6 of Ludwig 1889-1892 = Ludwig 1889), but is probably a forgotten name since it is missing for instance in the annotated catalogue of Holothuroidea by Smiley & Pawson (1991) or in the World Register of Marine Species. However, Holothuria kurti (introduced by Ludwig in a footnote on page 329 = fascicle 13/14 of Ludwig 1889-1892 = Ludwig 1891b) on the other hand gained acceptance to replace Holothuria lamperti Sluiter (e.g., Meissner 1895; Koehler & Vaney 1908; Sluiter 1914; Samyn et al. 2010). Lately Liao Yulin thought that H. kurti Ludwig, 1891 is probably a young H. (Theelothuria) ocellata (Liao 1980), other authors placed this species in the subgenus H. (Holothuria) and H. (Metriatyla) (cf. Rowe & Gates 1995).] Presently, H. kurti Ludwig, 1891 is considered to be a species of H. (Theelothuria) (Paulay 2014b).
description: Published as part of Reich, Mike, 2015, A short biography of Hubert Ludwig and a note on the publication dates of his monograph Die Seewalzen (1889 – 1892), pp. 332-344 in Zootaxa 4052 (2) on pages 332-344, DOI: 10.11646/zootaxa.4052.3.3, http://zenodo.org/record/237822
Script - Preston Remembers 2015
Creators: name: Newall, Helen
Publisher: name: Edge Hill University
Year: 2021
Subjects: subject: 190402 Creative Writing (incl. Playwriting)
subject: FOS: Arts (arts, history of arts, performing arts, music)
subject: 190404 Drama, Theatre and Performance Studies

description: Preston Remembers was commissioned by the Preston Remembers Partnership Project, after the successful run of Over By Christmas. It used new research conducted by volunteer community researchers to tell the stories of local figures, Joseph Garstang, John Gregson and Beatrice Blackhurst. It was performed by the newly renovated Preston Cenotaph and in other city centre locations, and launched the WW1 City Tours.
title: Quels sont les symptômes affectant la qualité de vie des patients atteints de sclérose en plaques qui peuvent être améliorés par le massage?
title: Quels sont les symptômes affectant la qualité de vie des patients atteints de sclérose en plaques qui peuvent être améliorés par le massage?
titleType: AlternativeTitle
Creators: name: Schmidt, Morgane
name: Torres Estrada, Daniela
Publisher: name: Unknown
Year: 0
Subjects: subject: sclérose en plaques
subject: massage
subject: toucher thérapeutique
subject: symptômes
subject: gestion des symptômes
subject: fatigue
subject: douleur
subject: dépression
subject: anxiété
subject: stress
subject: constipation
subject: spaticité et qualité de vie

description: Contexte : La sclérose en plaques (SEP) est une maladie chronique auto-immune complexe qui se caractérise par la formation de plaques dues à la destruction de la gaine de myéline entourant les axones de la substance blanche du cerveau. Ce phénomène a pour conséquence le ralentissement de la conduction nerveuse et l’apparition de nombreux symptômes, aussi bien physiques que cognitifs, impactant la qualité de vie des patients. Afin de ralentir l’évolution de la maladie et diminuer les symptômes un traitement médicamenteux est mis en place, mais celui-ci a des nombreux effets secondaires et n’est pas toujours efficace. C’est pour cette raison et dans le but de mieux gérer les symptômes que les personnes atteintes de SEP font souvent appel aux médecines complémentaires (CAM). Le massage est une des CAM les plus fréquemment utilisées par ces patients. But : Identifier les symptômes de la sclérose en plaque sur lesquels le massage a des effets bénéfiques et si cette thérapie aide à améliorer la qualité de vie du patient. Méthodologie : Sept articles ont été sélectionnés dans les bases de données CINHAL et PubMED sur les concepts suivants : sclérose en plaques, massage, gestion des symptômes, fatigue, douleur, dépression, anxiété, stress, constipation, spasticité et qualité de vie. Tous les articles ont été analysés afin de mettre en évidence les éléments clés. Résultats : Les articles permettent de prendre conscience de la complexité de la problématique, car ils étudient divers symptômes. Les résultats montrent que le massage a un effet positif sur la fatigue, la douleur, la dépression, l’anxiété, la constipation, la spasticité, la marche et l’équilibre, le sentiment d’auto-efficacité, l’image corporelle, l’estime de soi, la perception de la santé et la qualité de vie des patients. Conclusion : Tous les auteurs s’accordent pour dire qu’il faut davantage de recherches sur le sujet, cependant ils affirment également que le massage est une intervention sécuritaire bénéfique pour des personnes atteintes de SEP.
Charge renormalization for effective interactions of colloids at water interfaces
Creators: name: Frydel, D.
name: Dietrich, S.
name: Oettel, M.
Publisher: name: arXiv
Year: 2007
Subjects: subject: Soft Condensed Matter (cond-mat.soft)
subject: FOS: Physical sciences

description: We analyze theoretically the electrostatic interaction of surface-charged colloids at water interfaces with special attention to the experimentally relevant case of large charge densities on the colloid-water interface. Whereas linear theory predicts an effective dipole potential the strength of which is proportional to the square of the product of charge density and screening length, nonlinear charge renormalization effects change this dependence to a weakly logarithmic one. These results appear to be particularly relevant for structure formation at air-water interfaces with arbitrarily shaped colloids.
description: 4 pages
Process - Rehearsal Schedule - Over By Christmas
Creators: name: Newall, Helen
Publisher: name: Edge Hill University
Year: 2021
Subjects: subject: 190404 Drama, Theatre and Performance Studies
subject: FOS: Arts (arts, history of arts, performing arts, music)
subject: 190402 Creative Writing (incl. Playwriting)

description: Schedule for rehearsals for performance teams across Cheshire of Over By Christmas, Theatre in the Quarter.
Optical and NIR spectroscopy of cool CEMP stars to probe the nucleosynthesis in low mass AGB binary system
Creators: name: Susmitha, A.
name: Ojha, D. K.
name: Sivarani, T.
name: Ninan, J. P.
name: Bandyopadhyay, A.
name: Surya, Arun
name: Unni, Athira
Publisher: name: arXiv
Year: 2021
Subjects: subject: Solar and Stellar Astrophysics (astro-ph.SR)
subject: FOS: Physical sciences

description: We present the abundance analyses of 7 Carbon enhanced metal-poor (CEMP) stars to understand the origin of carbon in them. We used high-resolution optical spectra to derive abundances of various elements. We also used low-resolution Near-Infrared (NIR) spectra to derive the abundance of O and 12C/13C from the CO molecular band and compared their values with those derived from high-resolution optical spectra. We identified a good agreement between the values. Thus, in cool CEMP stars, the NIR observations complement the high-resolution optical observations to derive the oxygen abundance and the 12C/13C ratio. This enables us to probe fainter cool CEMP stars using NIR spectroscopy. C, N, O abundances of all the program stars in this study show abundances that are consistent with binary mass transfer from a low-mass low-metallicity Asymptotic Giant Branch (AGB) companion which is further supported by the presence of enhancement in neutron-capture elements and detection of radial velocity variation. One of the stars show abundance patterns similar to a CEMP-s star whereas the abundance pattern of the rest of the stars satisfy the criteria required to classify them as CEMP-r/s stars. The sub-classification of some of the stars studied here is revisited. The abundance of neutron capture elements in these CEMP-r/s stars resembles to that of i-process models where proton ingestion episodes in the companion low-mass low-metallicity AGB stars produce the necessary neutron density required for the onset of i-process.
description: 18 pages, 14 figures, 5 tables, accepted for publication in MNRAS
Vibration studies on TRIUMF resonators
Creators: name: Lee, Jimmy
Publisher: name: University of British Columbia
Year: 2010

description: The Cyclotron Division of Triumf, Canada's national meson facility, initiated a study to design replacement RF resonators which when in place would improve the quality of the particle beam produced by the cyclotron. A hot-arm, a major structure of a resonator, experiences thermal-related structural deformation and flow-induced structural vibration which reduces the spatial stability of the particle beam. The scope of this report encompasses studies on the hot-arm vibration to determine the desirable characteristics for a replacement hot-arm design which would reduce hot-arm vibration. The improved beam stability will be beneficial for the types of experiments conducted now at Triumf. In the future, it will be beneficial for the proposed Kaon Factory; Triumf has requested funds to construct a kaon producing factory encircling the existing cyclotron. The vibrating hot-arm is modelled analytically to be a transversely vibrating cantilever beam. Investigations are carried out on the following areas: 1. the nature of the vibration excitation forces originating from the coolant water flowing in the hot-arm; 2. the effectiveness of adding a lumped mass, a rotational stiffener and damping, to the cantilever beam model, in reducing beam vibration; 3. the minimum-weight design of a lightly damped variable-cross-section sandwich cantilever beam, subjected to a unit harmonic point force at the free tip, with constraint on the tip amplitude; 4. the minimum-weight design of a lightly damped variable-cross-section sandwich cantilever beam, subjected to a random rain force with white noise power spectral density over the beam span, with constraint on the mean square tip deflection; 5. the optimal design of a dynamic vibration absorber to attenuate the hot-arm vibration and 6. the influence of the shape of the coolant-flow channel on the magnification of the flow-induced excitation in a hot-arm. A possible design for the replacement hot-arm is discussed.
The four site Higgsless model at the LHC
Creators: name: Accomando, E.
name: De Curtis, S.
name: Dominici, D.
name: Fedeli, L.
Publisher: name: arXiv
Year: 2008
Subjects: subject: High Energy Physics - Phenomenology (hep-ph)
subject: FOS: Physical sciences

description: We consider the four-site Higgsless model, which predicts the existence of four charged and two neutral extra gauge bosons, $W_{1,2}^\pm$ and $Z_{1,2}$. In contrast to other Higgsless models, characterized by fermiophobic extra gauge bosons, here sizeable fermion-boson couplings are allowed by the electroweak precision data. We thus analyse the prospects of detecting the new predicted particles in the mostly favored Drell-Yan channel at the LHC.
description: To appear in the proceedings of the "Incontri di Fisica delle Alte Energie" (IFAE 2008), Bologna, 26-28 March 2008
Process documentation - Tour schedule - Over By Christmas 2014
Creators: name: Newall, Helen
Publisher: name: Edge Hill University
Year: 2021
Subjects: subject: 190402 Creative Writing (incl. Playwriting)
subject: FOS: Arts (arts, history of arts, performing arts, music)
subject: 190404 Drama, Theatre and Performance Studies

description: Tour schedule for Over by Christmas, 2014
A brief review of Implicit Regularization and its connection with the BPHZ theorem
Creators: name: Arias-Perdomo, Dafne Carolina
name: Cherchiglia, Adriano
name: Hiller, Brigitte
name: Sampaio, Marcos
Publisher: name: arXiv
Year: 2021
Subjects: subject: High Energy Physics - Theory (hep-th)
subject: High Energy Physics - Phenomenology (hep-ph)
subject: FOS: Physical sciences

description: Quantum Field Theory, as the keystone of particle physics, has allowed great insights to deciphering the core of Nature. Despite its striking success, by adhering to local interactions, Quantum Field Theory suffers from the appearance of divergent quantities in intermediary steps of the calculation, which encompasses the need for some regularization/renormalization prescription. As an alternative to traditional methods, based on the analytic extension of space-time dimension, frameworks that stay in the physical dimension have emerged, Implicit Regularization is one among them. We briefly review the method, aiming to illustrate how Implicit Regularization complies with the BPHZ theorem, which implies that it respects unitarity and locality to arbitrary loop order.
description: Contribution to the special issue of Symmetry on "Higher Order Radiative Corrections in QCD"
Script - Honour 2014
Creators: name: Newall, Helen
Publisher: name: Edge Hill University
Year: 2021
Subjects: subject: 190402 Creative Writing (incl. Playwriting)
subject: FOS: Arts (arts, history of arts, performing arts, music)
subject: 190404 Drama, Theatre and Performance Studies

description: Commissioned by Quays Culture, Salford, Honour a large scale outdoor event staged on the plaza, Salford Quays. This involved three professional actors; a large community choir; dancers; fireworks; and large-scale projection thrown onto the side of the BBC building. This playscripts concerns the part of the event performed by three actors positioned among the large gathering of the audience, on head height platforms and speaking using mics.
Written by Helen NewallDirected by Matt Baker
Photo documentation - Honour 2014
Creators: name: Newall, Helen
Publisher: name: Edge Hill University
Year: 2021
Subjects: subject: 190402 Creative Writing (incl. Playwriting)
subject: FOS: Arts (arts, history of arts, performing arts, music)
subject: 190404 Drama, Theatre and Performance Studies

description: Photo documentation for Honour, a large scale event commissioned by Quays Culture.
PlayscriptWritten by Helen NewallDirected by Matt BakerEvent director Craig Morrison
Preparation of a Stable and Maximally Entangled State of Two Distant Qutrits Trapped in Separate Cavities
Creators: name: Yu, Chang-shui
name: Yi, X. X.
name: Song, He-shan
name: Mei, D.
Publisher: name: arXiv
Year: 2008
Subjects: subject: Quantum Physics (quant-ph)
subject: FOS: Physical sciences

description: We have proposed a simple scheme to entangle two distant qutrits trapped in separate optical cavities. The quantum information of each qutrit is skillfully encoded on the degenerate ground states of a pair of atoms, hence the entanglement between them is relatively stable against spontaneous emission. In Lamb-Dicke limits, it is not necessary to require coincidence detections, which will relax the conditions for the experimental realization. The scheme is robust against the inefficient detections.
description: 8 pages, 2 figures
TOG'AY MURODNING YULDUZLAR MANGU YONADI ASARIDA MILLIYLIK RUHI
Creators: name: Mustafoqulova, Sohiba
name: Mannazova, Fotima
name: To'xtamishova, Madina
Publisher: name: Zenodo
Year: 2024

description: Isteʼdodli yozuvchi, Tog'ay Murodning barcha asarlari milliy urf-odatlarimiz, o'zbek xalqining g'urur va iftixori, odamiylikning eng go'zal fazilatlari ruhi bilan sug'orilgan. U barcha asarlarida haqiqiy insoniylik tuygʻularini ulugʻlaydi. Odamlarni mardlikka, bir so'zlilikka chaqiradi.
Limit theorems for some adaptive MCMC algorithms with subgeometric kernels
Creators: name: Atchadé, Yves
name: Fort, Gersende
Publisher: name: arXiv
Year: 2008
Subjects: subject: Probability (math.PR)
subject: FOS: Mathematics
subject: 60J10, 65C05

description: This paper deals with the ergodicity and the existence of a strong law of large numbers for adaptive Markov Chain Monte Carlo. We show that a diminishing adaptation assumption together with a drift condition for positive recurrence is enough to imply ergodicity. Strengthening the drift condition to a polynomial drift condition yields a strong law of large numbers for possibly unbounded functions. These results broaden considerably the class of adaptive MCMC algorithms for which rigorous analysis is now possible. As an example, we give a detailed analysis of the Adaptive Metropolis Algorithm of Haario et al. (2001) when the target distribution is sub-exponential in the tails.
Entanglement Assisted Classical Capacity of a Class of Quantum Channels with Long-Term Memory
Creators: name: Datta, Nilanjana
name: Suhov, Yurii
name: Dorlas, Tony C.
Publisher: name: arXiv
Year: 2007
Subjects: subject: Quantum Physics (quant-ph)
subject: FOS: Physical sciences

description: In this paper we evaluate the entanglement assisted classical capacity of a class of quantum channels with long-term memory, which are convex combinations of memoryless channels. The memory of such channels can be considered to be given by a Markov chain which is aperiodic but not irreducible.
description: Published version; 13 pages
Seismic Fault Preserving Diffusion
Creators: name: Lavialle, Olivier
name: Pop, Sorin
name: Germain, Christian
name: Donias, Marc
name: Guillon, Sebastien
name: Keskes, Naamen
name: Berthoumieu, Yannick
Publisher: name: arXiv
Year: 2007
Subjects: subject: Geophysics (physics.geo-ph)
subject: FOS: Physical sciences

description: This paper focuses on the denoising and enhancing of 3-D reflection seismic data. We propose a pre-processing step based on a non linear diffusion filtering leading to a better detection of seismic faults. The non linear diffusion approaches are based on the definition of a partial differential equation that allows us to simplify the images without blurring relevant details or discontinuities. Computing the structure tensor which provides information on the local orientation of the geological layers, we propose to drive the diffusion along these layers using a new approach called SFPD (Seismic Fault Preserving Diffusion). In SFPD, the eigenvalues of the tensor are fixed according to a confidence measure that takes into account the regularity of the local seismic structure. Results on both synthesized and real 3-D blocks show the efficiency of the proposed approach.
description: 10 pages
Observation of extremely slow hole spin relaxation in self-assembled quantum dots
Creators: name: Heiss, D.
name: Schaeck, S.
name: Huebl, H.
name: Bichler, M.
name: Abstreiter, G.
name: Finley, J. J.
name: Bulaev, D. V.
name: Loss, Daniel
Publisher: name: arXiv
Year: 2007
Subjects: subject: Mesoscale and Nanoscale Physics (cond-mat.mes-hall)
subject: FOS: Physical sciences

description: We report the measurement of extremely slow hole spin relaxation dynamics in small ensembles of self-assembled InGaAs quantum dots. Individual spin orientated holes are optically created in the lowest orbital state of each dot and read out after a defined storage time using spin memory devices. The resulting luminescence signal exhibits a pronounced polarization memory effect that vanishes for long storage times. The hole spin relaxation dynamics are measured as a function of external magnetic field and lattice temperature. We show that hole spin relaxation can occur over remarkably long timescales in strongly confined quantum dots (up to ~270 us), as predicted by recent theory. Our findings are supported by calculations that reproduce both the observed magnetic field and temperature dependencies. The results suggest that hole spin relaxation in strongly confined quantum dots is due to spin orbit mediated phonon scattering between Zeeman levels, in marked contrast to higher dimensional nanostructures where it is limited by valence band mixing.
description: Published by Physical Review B
Resummation of Hadroproduction Cross-sections at High Energy
Creators: name: Ball, Richard D
Publisher: name: arXiv
Year: 2007
Subjects: subject: High Energy Physics - Phenomenology (hep-ph)
subject: FOS: Physical sciences

description: We reconsider the high energy resummation of photoproduction, electroproduction and hadroproduction cross-sections, in the light of recent progress in the resummation of perturbative parton evolution to NLO in logarithms of Q^2 and x. We show in particular that the when the coupling runs the dramatic enhancements seen at fixed coupling, due to infrared singularities in the partonic cross-sections, are substantially reduced, to the extent that they are largely accounted for by the usual NLO and NNLO perturbative corrections. This leads to a novel explanation of the large K-factors commonly found in perturbative calculations of hadroproduction cross-sections. We give numerical estimates of high energy resummation effects for inclusive B-production, inclusive jets, Drell-Yan and vector boson production, along with their rapidity distributions. We find that resummation modifies the B-production cross-section at the LHC by at most 15%, but that the enhancement of gluonic W-production may be as large as 50% at large rapidities.
description: 49 pages, 25 figures, version to be published in Nucl Phys B
Long-range correlations of density in a Bose-Einstein condensate expanding in a random potential
Creators: name: Cherroret, N.
name: Skipetrov, S. E.
Publisher: name: arXiv
Year: 2008
Subjects: subject: Disordered Systems and Neural Networks (cond-mat.dis-nn)
subject: Mesoscale and Nanoscale Physics (cond-mat.mes-hall)
subject: FOS: Physical sciences

description: We study correlations of atomic density in a weakly interacting Bose-Einstein condensate, expanding diffusively in a random potential. We show that these correlations are long-range and that they are strongly enhanced at long times. Density at distant points exhibits negative correlations.
description: 4 pages, 5 figures
Mass-Deformed Bagger-Lambert Theory and its BPS Objects
Creators: name: Hosomichi, Kazuo
name: Lee, Ki-Myeong
name: Lee, Sungjay
Publisher: name: arXiv
Year: 2008
Subjects: subject: High Energy Physics - Theory (hep-th)
subject: FOS: Physical sciences

description: We find a sixteen supersymmetric mass-deformed Bagger-Lambert theory with $SO(4)\times SO(4)$ global R-symmetry. The R-charge plays the `non-central' term in the superalgebra. This theory has one symmetric vacuum and two in-equivalent broken sectors of vacua. Each sector of the broken symmetry has the SO(4) geometry. We find the 1/2 BPS domain walls connecting the symmetric phase and any broken phase, and 1/4 BPS supertube-like objects, which may appear as anyonic q-balls in the symmetric phase or vortices in the broken phase. We also discuss mass deformations which reduces the number of supersymmetries.
description: 12 pages, JHEP style, no figures, corrected equations and corrected reference
Analysis of Network Robustness in Scale-Free Networks
Creators: name: Shankar, Jay
name: Kelly, Joe
Publisher: name: Zenodo
Year: 2019
Subjects: NetworkX, scale-free, robustness, networks, graph theory

description: This research paper was completed in fulfillment of requirements for the Network Science course as a part of the Masters in Data Science program at Indiana University-Bloomington in May 2019.

The goal of this research is to analyze the network robustness of scale-free networks.  What makes the scale-free networks robust ?  Does the presence of large hubs make the difference ? We intend to answer and provide reasoning about the robustness of scale-free networks through comparison analysis of  biological, Internet and NetworkX scale-free networks during the course of this project.
Many-spinon states and the secret significance of Young tableaux
Creators: name: Greiter, Martin
name: Schuricht, Dirk
Publisher: name: arXiv
Year: 2007
Subjects: subject: Strongly Correlated Electrons (cond-mat.str-el)
subject: Mathematical Physics (math-ph)
subject: FOS: Physical sciences

description: We establish a one-to-one correspondence between the Young tableaux classifying the total spin representations of N spins and the exact eigenstates of the the Haldane-Shastry model for a chain with N sites classified by the total spins and the fractionally spaced single-particle momenta of the spinons.
description: 4 pages, 3 figures
Topology of Chaotic Mixing Patterns
Creators: name: Thiffeault, Jean-Luc
name: Finn, Matthew D.
name: Gouillart, Emmanuelle
name: Hall, Toby
Publisher: name: arXiv
Year: 2008
Subjects: subject: Chaotic Dynamics (nlin.CD)
subject: FOS: Physical sciences

description: A stirring device consisting of a periodic motion of rods induces a mapping of the fluid domain to itself, which can be regarded as a homeomorphism of a punctured surface. Having the rods undergo a topologically-complex motion guarantees at least a minimum amount of stretching of material lines, which is important for chaotic mixing. We use topological considerations to describe the nature of the injection of unmixed material into a central mixing region, which takes place at injection cusps. A topological index formula allow us to predict the possible types of unstable foliations that can arise for a fixed number of rods.
description: 15 pages, 13 figures, RevTeX4 macros. Final version
Conductance spectra of metallic nanotube bundles
Creators: name: Ren, Wei
name: Chan, C. T.
name: Cho, T. H.
name: Leung, T. C.
name: Wang, Jian
name: Guo, Hong
name: Sheng, Ping
Publisher: name: arXiv
Year: 2008
Subjects: subject: Mesoscale and Nanoscale Physics (cond-mat.mes-hall)
subject: Materials Science (cond-mat.mtrl-sci)
subject: FOS: Physical sciences

description: We report a first principles analysis of electronic transport characteristics for (n,n) carbon nanotube bundles. When n is not a multiple of 3, inter-tube coupling causes universal conductance suppression near Fermi level regardless of the rotational arrangement of individual tubes. However, when n is a multiple of 3, the bundles exhibit a diversified conductance dependence on the orientation details of the constituent tubes. The total energy of the bundle is also sensitive to the orientation arrangement only when n is a multiple of 3. All the transport properties and band structures can be well understood from the symmetry consideration of whether the rotational symmetry of the individual tubes is commensurate with that of the bundle.
Recursive Training for Zero-Shot Semantic Segmentation
Creators: name: Wang, Ce
name: Farazi, Moshiur
name: Barnes, Nick
Publisher: name: arXiv
Year: 2021
Subjects: subject: Computer Vision and Pattern Recognition (cs.CV)
subject: FOS: Computer and information sciences

description: General purpose semantic segmentation relies on a backbone CNN network to extract discriminative features that help classify each image pixel into a 'seen' object class (ie., the object classes available during training) or a background class. Zero-shot semantic segmentation is a challenging task that requires a computer vision model to identify image pixels belonging to an object class which it has never seen before. Equipping a general purpose semantic segmentation model to separate image pixels of 'unseen' classes from the background remains an open challenge. Some recent models have approached this problem by fine-tuning the final pixel classification layer of a semantic segmentation model for a Zero-Shot setting, but struggle to learn discriminative features due to the lack of supervision. We propose a recursive training scheme to supervise the retraining of a semantic segmentation model for a zero-shot setting using a pseudo-feature representation. To this end, we propose a Zero-Shot Maximum Mean Discrepancy (ZS-MMD) loss that weighs high confidence outputs of the pixel classification layer as a pseudo-feature representation, and feeds it back to the generator. By closing-the-loop on the generator end, we provide supervision during retraining that in turn helps the model learn a more discriminative feature representation for 'unseen' classes. We show that using our recursive training and ZS-MMD loss, our proposed model achieves state-of-the-art performance on the Pascal-VOC 2012 dataset and Pascal-Context dataset.
Anomaly mediated neutrino-photon interactions at finite baryon density
Creators: name: Harvey, Jeffrey A.
name: Hill, Christopher T.
name: Hill, Richard J.
Publisher: name: arXiv
Year: 2007
Subjects: subject: High Energy Physics - Phenomenology (hep-ph)
subject: Astrophysics (astro-ph)
subject: High Energy Physics - Theory (hep-th)
subject: Nuclear Experiment (nucl-ex)
subject: Nuclear Theory (nucl-th)
subject: FOS: Physical sciences

description: We propose new physical processes based on the axial vector anomaly and described by the Wess-Zumino-Witten term that couples the photon, Z-boson, and the omega-meson. The interaction takes the form of a pseudo-Chern-Simons term, $\sim ε_{μνρσ}ω^μZ^νF^{ρσ}$. This term induces neutrino-photon interactions at finite baryon density via the coupling of the Z-boson to neutrinos. These interactions may be detectable in various laboratory and astrophysical arenas. The new interactions may account for the MiniBooNE excess. They also produce a competitive contribution to neutron star cooling at temperatures >10^9 K. These processes and related axion--photon interactions at finite baryon density appear to be relevant in many astrophysical regimes.
description: 4 pages, 2 figures; references added
Script - Your Country Needs You 2015
Creators: name: Newall, Helen
Publisher: name: Edge Hill University
Year: 2021
Subjects: subject: 190402 Creative Writing (incl. Playwriting)
subject: FOS: Arts (arts, history of arts, performing arts, music)
subject: 190404 Drama, Theatre and Performance Studies

description: Your Country Needs You, commissioned by Culture Warrington, was a street performance disseminating the stories of people local to Warrington during the Great War. It was part of an initiative to bring innovative culture to the town, and to raise awareness of local history. It was performed outdoors in several town centre locations during one day of the Warrington Festival, and engaged with a transient audience of over 640 people.
The script was written with research by local historian Janice Hayes, and directed by Matt Baker.
Knots in the Skyrme-Faddeev model
Creators: name: Sutcliffe, Paul
Publisher: name: arXiv
Year: 2007
Subjects: subject: High Energy Physics - Theory (hep-th)
subject: FOS: Physical sciences

description: The Skyrme-Faddeev model is a modified sigma model in three-dimensional space, which has string-like topological solitons classified by the integer-valued Hopf charge. Numerical simulations are performed to compute soliton solutions for Hopf charges up to sixteen, with initial conditions provided by families of rational maps from the three-sphere into the complex projective line. A large number of new solutions are presented, including a variety of torus knots for a range of Hopf charges. Often these knots are only local energy minima, with the global minimum being a linked solution, but for some values of the Hopf charge they are good candidates for the global minimum energy solution. The computed energies are in agreement with Ward's conjectured energy bound.
description: 21 pages, 5 figures
Scalar order: possible candidate for order parameters in skutterudites
Creators: name: Kiss, Annamaria
name: Kuramoto, Yoshio
Publisher: name: arXiv
Year: 2008
Subjects: subject: Strongly Correlated Electrons (cond-mat.str-el)
subject: FOS: Physical sciences

description: Phenomenological Landau analysis shows that the properties of ordered phases in some skutterudites are consistently accounted for by a scalar order parameter which preserves the cubic symmetry, even in the ordered phase. A universal value is found for the anisotropy ratio of the transition temperature in a magnetic field, homogeneous magnetization, and induced staggered magnetization. The difference in magnetic behavior between PrFe$_4$P$_{12}$ and PrRu$_4$P$_{12}$ near their phase transitions is explained within a single framework. For the low-field phase of PrFe$_4$P$_{12}$, the scalar order with the $Γ_{1g}$ symmetry can explain (i) the absence of field induced dipoles perpendicular to the magnetic field, (ii) isotropic magnetic susceptibility in the ordered phase, (iii) the field angle dependence of the transition temperature, and (iv) the splitting pattern of the $^{31}$P nuclear magnetic resonance (NMR) spectra. It is proposed how the order parameter in SmRu$_4$P$_{12}$ is identified by NMR analysis of a single crystal.
description: 4 pages, 4 figures
A numerical investigation of the pressure distribution on a Fourdrinier paper machine drainage foil
Creators: name: Lepp, Gary
Publisher: name: University of British Columbia
Year: 2010

description: A mathematical model and three numerical solution procedures have been developed to predict the pressure distribution on a Fourdrinier paper machine drainage foil. The present models are based on a numerical solution of the full laminar boundary layer equations. Previous modelling attempts have made use of the boundary layer equations in various simplified forms. The solution procedures used were grouped into two categories; the one-dimensional models and the two-dimensional model. The one-dimensional models were based on an approximate integral solution of the boundary layer equations. The two-dimensional model was based on a solution of the boundary layer equations using a finite difference method. Experimental measurements of the pressure distributions and the drainage rates on three tapered foils and two stepped foils were made to provide data for comparison with the results of the models. Computed results obtained using the solution procedures generally did not agree well with the experimental results of the present investigation. The results, however, did predict observed trends in the pressure distributions due to variations in the wire velocity and foil geometries. Consequently, the models may be considered viable approaches to predicting the pressure distribution on a foil, though a great deal of further work is necessary before the solution procedures may be used for design purposes.
Negative Compressibility of Single Selenium Chain Confined in Zeolite Pore
Creators: name: Ren, Wei
name: Ye, Jian-Ting
name: Shi, Wu
name: Tang, Zi-Kang
name: Chan, C. T.
name: Sheng, Ping
Publisher: name: arXiv
Year: 2008
Subjects: subject: Materials Science (cond-mat.mtrl-sci)
subject: Mesoscale and Nanoscale Physics (cond-mat.mes-hall)
subject: FOS: Physical sciences

description: Pressure induced structural and electronic transitions of Se helical chains confined inside nano-channels are studied. Raman scattering and optical absorption experiments show strong evidence of band gap reduction under high pressure. Ab initio calculations reveal that under hydrostatic compression, the Se chains should elongate and the change in morphology leads to a softening of phonons and narrowing of band gaps, and these signatures are observed in experiments. Our investigation demonstrates a negative compressibility in one dimension.