cometadata/datacite-rtg-text-other-reclassification-records huggingface dataset:
Falling through the Cracks: Participatory Research and the Puzzle of Grey Literature
Creators: name: Coleman, Neil
Publisher: name: Zenodo
Year: 2023
Subjects: Collections, Research Data Management, Grey Literature, Open Science

description: ‘Participatory research’ encompasses a range of research activity ranging from ‘Citizen Science’ through to ‘Public and Patient Involvement in Research’ (PPI). The common thread is the sharing of control over the research process with non-specialist participants as both a research paradigm and as a form of engagement thereby acting as an active strategy for moving towards Open Research. Research of this kind produces a large amount of materials associated with the research activities that fall into the category of grey literature. Zines using health-related magazines produced as an engagement activity, poetry written to spark off ideas with the participants, handbooks and guides used to educate and inform participants about the fundamentals of the work they are supporting. In many cases, these materials are seen as resting in an uncomfortable middle ground, somewhere between ‘data’ and ‘research output’. Many of these materials are effectively lost. They are binned, deleted, or stored on personal computers. They are not published in journals nor archived in data repositories (open access or otherwise). This is a great loss for the wider community, as grey literature of this kind: 1. Documents the research process and the role of the participants in research. 2. May contain materials useful to future research projects. 3. Has historical significance, documenting the shifting approaches taken within various research paradigms. While it is possible to expand the concept of data to encompass these materials, such an approach mis-represents their place in research (and participatory research in particular). As such, as part of our Participatory Research Service we are working with researchers and engagement officers to begin archiving these materials in a centralised, Open Access repository, associated with past and ongoing research projects at the University of Edinburgh. We are currently in the early stages of addressing this issue. In the interim, we are combining and adapting pre-existing services to facilitate their storage and access, and we are currently exploring longer term solutions to the problem.
The First Detection of a Protostellar CO Outflow in the Small Magellanic Cloud with ALMA
Creators: name: Tokuda, Kazuki
name: Zahorecz, Sarolta
name: Kunitoshi, Yuri
name: Higashino, Kosuke
name: Tanaka, Kei E. I.
name: Konishi, Ayu
name: Suzuki, Taisei
name: Kitano, Naoya
name: Harada, Naoto
name: Shimonishi, Takashi
name: Neelamkodan, Naslim
name: Fukui, Yasuo
name: Kawamura, Akiko
name: Onishi, Toshikazu
name: Machida, Masahiro N.
Publisher: name: arXiv
Year: 2022
Subjects: subject: Astrophysics of Galaxies (astro-ph.GA)
subject: FOS: Physical sciences

description: Protostellar outflows are one of the most outstanding features of star formation. Observational studies over the last several decades have successfully demonstrated that outflows are ubiquitously associated with low- and high-mass protostars in the solar-metallicity Galactic conditions. However, the environmental dependence of protostellar outflow properties is still poorly understood, particularly in the low-metallicity regime. Here we report the first detection of a molecular outflow in the Small Magellanic Cloud with 0.2 $Z_{\odot}$, using Atacama Large Millimeter/submillimeter Array observations at a spatial resolution of 0.1 pc toward the massive protostar Y246. The bipolar outflow is nicely illustrated by high-velocity wings of CO(3-2) emission at $\gtrsim$15 km s$^{-1}$. The evaluated properties of the outflow (momentum, mechanical force, etc.) are consistent with those of the Galactic counterparts. Our results suggest that the molecular outflows, i.e., the guidepost of the disk accretion at the small scale, might be universally associated with protostars across the metallicity range of $\sim$0.2-1 $Z_{\odot}$.
description: 7 pages, 2 figures, Accepted for publication in ApJL
Cancellation of divergences in the nonprojectable Horava theory
Creators: name: Bellorin, Jorge
name: Borquez, Claudio
name: Droguett, Byron
Publisher: name: arXiv
Year: 2022
Subjects: subject: High Energy Physics - Theory (hep-th)
subject: General Relativity and Quantum Cosmology (gr-qc)
subject: FOS: Physical sciences

description: We perform an analysis of the ultraviolet divergences of the quantum nonprojectable Horava gravity. We work the quantum field theory directly in the Hamiltonian formalism provided by the Batalin-Fradkin-Vilkovisky quantization. In this way the second-class constraints can be incorporated to the quantization. A known local gauge-fixing condition leads to a local canonical Lagrangian. Although the canonical fields acquire regular propagators, irregular propagators persist for the field associated to the measure of the second-class constraints. Loops can be formed with the irregular propagators producing potentially dangerous subdivergences. We show that all these loops cancel exactly between them due to a perfect matching between the propagators and vertices of the fields and ghosts forming the loops. The rest of divergences behaves similiarly to the projectable theory, they can be removed by local counterterms. This result points to the renormalization of the nonprojectable Horava theory.
description: v3: Minor corrections on typos and grammar. v2: The paper has been changed to emphasize the cancellation of divergences
Rotational Properties of the Odd-$Z$ Transfermium Nucleus $^{255}$Lr by a Particle-number-conserving Method in the Cranked Shell Model
Creators: name: Li, Yu-Chun
name: He, Xiao-Tao
Publisher: name: arXiv
Year: 2016
Subjects: subject: Nuclear Theory (nucl-th)
subject: FOS: Physical sciences

description: Experimentally observed ground state band based on the $1/2^{-}[521]$ Nilsson state and the first exited band based on the $7/2^{-}[514]$ Nilsson state in the odd-$Z$ nucleus $^{255}$Lr are studied by the cranked shell model (CSM) with the paring correlations treated by the particle-number-conserving (PNC) method. This is the first time the detailed theoretical investigations being performed on these rotational bands. Both the experimental kinematic and dynamic moment of inertia ($\mathcal{J}^{(1)}$ and $\mathcal{J}^{(2)}$) versus rotational frequency are reproduced quite well by the PNC-CSM calculations. By comparing the theoretical kinematic moment of inertia $\mathcal{J}^{(1)}$ with the experimental ones extracted from different spin assignments, the spin $17/2^{-}\rightarrow13/2^{-}$ is assigned to the lowest-lying $196.6(5)$ keV transition of the $1/2^{-}[521]$ band, and $15/2^{-}\rightarrow11/2^{-}$ to the $189(1)$ keV transition of the $7/2^{-}[514]$ band, respectively. The proton $N=7$ major shell is included in the calculations. The intruder of the high$-j$ low$-Ω$ orbitals $1j_{15/2}$ $ (1/2^{-}[770])$ at the high spin leads to the band-crossing at $\hbarω\approx0.20$ ($\hbarω\approx0.25$) MeV for the $7/2^{-}[514]$ $α=-1/2$ ($α=+1/2$) band, and at $\hbarω\approx0.175$ MeV for the $1/2^{-}[521]$ $α=-1/2$ band, respectively. Further investigations show that the band-crossing frequencies are quadrupole deformation dependent.
description: arXiv admin note: text overlap with arXiv:1208.1156 by other authors
Effects and consequences of implementing citizen-science programmes in schools in an environmentally, economically and socially challenged urban district. REGREEN Deliverable D5.4.
Creators: name: Sierra-Jimenez, Mara
name: Prévot, Anne-Caroline
name: Benateau, Simon
name: Turpin, Sebastien
Publisher: name: REGREEN Fostering nature‐based solutions for smart, green and healthy urban transitions in Europe and China.
Year: 2022
Subjects: Vigie Nature Ecole
nature education
Children
equity

description: n an era of over urbanisation and disconnection to living world in Western countries, this report refers to a survey of two‐years experiment in fifteen schools in Paris‐region, France including students aged 3 to 18. In these schools, volunteering teachers have implemented citizen‐science programmes on common biodiversity with theirstudents, and combined these observations with initiatives toward biodiversity in the schoolyards. Citizen‐science programmes were part of the French national Vigie‐Nature Ecole programme (VNE), developed by the French National Museum of Natural History (MNHN). Teachers were also invited by the research MNHN team to deploy some other pedagogical approaches to enrich the emotional and affective bonds of students with nature. 

As shown by the 2‐years survey of the involved classes, the implementation of VNE in classes is challenging because it changes many pedagogical and educational routines. The first year is a fundamentalstage in the learning process ofscientific pedagogy, during which the teacher observes, discovers, seeks out and trains himself and his pupils. It is a moment of transition between the known pedagogical comfort zone and the discovery of new possibilities. During the following years, teachers explore more in‐depth the proposed educational tools, and enrich their pedagogical activities, to become innovative in a diversity of initiatives.  

Regarding children and young adults, observing common natural species (birds, insects, earthworms, snails, plants) in the schoolyard is the opportunity to discover a new world (for some of them), to increase their awareness toward nature, but also to open new emotional bonds to nature. With these two‐year experiments, we highlighted the complementarity of scientific and sensitive approaches to increase the awareness of students from all ages to surrounding nature, in a very urbanised context.
On Radical of Intuitionistic Fuzzy Primary Submodule
Creators: name: Taherpour, Abbas
name: Ghalandarzadeh, Shaban
name: Rad, Parastoo Malakooti
name: Safari, Parvin
Publisher: name: arXiv
Year: 2022
Subjects: subject: Commutative Algebra (math.AC)
subject: FOS: Mathematics
subject: 08A72, 03F55

description: In this paper, we further study the theory of Intuitionistic fuzzy submodules and we will define intuitionistic fuzzy primary submodule with the help of the definition of a radical submodule, and we also study the properties of these submodules. Furthermore, homomorphic image and pre-image of intuitionistic fuzzy primary submodule are investigated.
description: 21 pages
Neutrino oscillations in discrete-time quantum walk framework
Creators: name: Mallick, Arindam
name: Mandal, Sanjoy
name: Chandrashekar, C. M.
Publisher: name: arXiv
Year: 2016
Subjects: subject: Quantum Physics (quant-ph)
subject: High Energy Physics - Lattice (hep-lat)
subject: FOS: Physical sciences

description: Here we present neutrino oscillation in the frame-work of quantum walks. Starting from a one spatial dimensional discrete-time quantum walk we present a scheme of evolutions that will simulate neutrino oscillation. The set of quantum walk parameters which is required to reproduce the oscillation probability profile obtained in both, long range and short range neutrino experiment is explicitly presented. Our scheme to simulate three-generation neutrino oscillation from quantum walk evolution operators can be physically realized in any low energy experimental set-up with access to control a single six-level system, a multiparticle three-qubit or a qubit-qutrit system. We also present the entanglement between spins and position space, during neutrino propagation that will quantify the wave function delocalization around instantaneous average position of the neutrino. This work will contribute towards understanding neutrino oscillation in the framework of the quantum information perspective.
description: 11 pages (2 columns), 5 figures; Published version
Probing New Physics Scales from Higgs and Electroweak Observables at $e^+ e^-$ Higgs Factory
Creators: name: Ge, Shao-Feng
name: He, Hong-Jian
name: Xiao, Rui-Qing
Publisher: name: arXiv
Year: 2016
Subjects: subject: High Energy Physics - Phenomenology (hep-ph)
subject: High Energy Physics - Experiment (hep-ex)
subject: FOS: Physical sciences

description: New physics beyond the standard model (SM) can be model-independently formulated via dimension-6 effective operators, whose coefficients (cutoffs) characterize the scales of new physics. We study the probe of new physics scales from the electroweak precision observables (EWPO) and the Higgs observables (HO) at the future $e^+e^-$ Higgs factory (such as CEPC). To optimize constraints of new physics from all available observables, we establish a scheme-independent approach. With this formulation, we treat the SM electroweak parameters and the coefficients of dimension-6 operators on equal footing, which can be fitted simultaneously by the same $χ^2$ function. As deviations from the SM are generally small, we can expand the new physics parameters up to linear order and perform an analytical $χ^2$ fit to derive the potential reach of the new physics scales. We find that the HO from both Higgs produnction and decay rates can probe the new physics scales up to 10TeV (and to 44TeV for the case of gluon-involved operator $\mathcal{O}_g$), and the new physics scales of Yukawa-type operators can be probed by the precision Higgs coupling measurements up to (13-25)TeV. Further including the EWPO can push the limit up to 35TeV. From this prospect, we demonstrate that the EWPO measured in the early phase of a Higgs factory can be as important as the Higgs observables. These indirect probes of new physics scales at the Higgs factory can mainly cover the energy range to be directly explored by the next generation hadron colliders of pp(50-100TeV), such as the SPPC and FCC-hh.
description: JHEP Final Version, 43 pages, 10 Tables, 6 Figs, using jheppub.sty format, only minor refinements
Path integral molecular dynamics for anyons, bosons and fermions
Creators: name: Yunuo, Xiong
name: Hongwei, Xiong
Publisher: name: arXiv
Year: 2022
Subjects: subject: Quantum Gases (cond-mat.quant-gas)
subject: Strongly Correlated Electrons (cond-mat.str-el)
subject: Computational Physics (physics.comp-ph)
subject: Quantum Physics (quant-ph)
subject: FOS: Physical sciences

description: In this article we develop a general method to numerically calculate physical properties for a system of anyons with path integral molecular dynamics. We provide a unified method to calculate the thermodynamics of identical bosons, fermions and anyons. Our method is tested and applied to systems of anyons, bosons and fermions in a two-dimensional harmonic trap. We also consider a method to calculate the energy for fermions as an application of the path integral molecular dynamics to simulate the anyon model.
description: 19 pages, 6 figures, accepted by Physical Review E
Coupling erbium spins to a three-dimensional superconducting cavity at zero magnetic field
Creators: name: Chen, Yu-Hui
name: Fernandez-Gonzalvo, Xavier
name: Longdell, Jevon J.
Publisher: name: arXiv
Year: 2015
Subjects: subject: Quantum Physics (quant-ph)
subject: Atomic Physics (physics.atom-ph)
subject: FOS: Physical sciences

description: We experimentally demonstrate the coupling at zero magnetic field of an isotopically pure erbium doped yttrium orthosilicate crystal ($^{167}$Er:YSO) to a three-dimensional superconducting cavity with a $Q$ factor of $10^5$. A tunable loop-gap resonator is used, and its resonance frequency is tuned to observe the hyperfine transitions of the erbium sample. The observed spectrum differs from what is predicted by the published spin Hamiltonian parameters. The narrow cavity linewidth also enables the observation of asymmetric line shapes for these hyperfine transitions. Such a broadly tunable superconducting cavity (from 1.6 GHz to 4.0 GHz in the current design) is a promising device for building hybrid quantum systems.
description: 5 figures
Stochastic Allen-Cahn approximation of the mean curvature flow: large deviations upper bound
Creators: name: Bertini, Lorenzo
name: Buttà, Paolo
name: Pisante, Adriano
Publisher: name: arXiv
Year: 2016
Subjects: subject: Probability (math.PR)
subject: Mathematical Physics (math-ph)
subject: Analysis of PDEs (math.AP)
subject: FOS: Mathematics
subject: FOS: Physical sciences
subject: 35R60, 60F10, 82C24, 53C44

description: Consider the Allen-Cahn equation on the $d$-dimensional torus, $d=2,3$, in the sharp interface limit. As it is well known, the limiting dynamics is described by the motion by mean curvature of the interface between the two stable phases. Here, we analyze a stochastic perturbation of the Allen-Cahn equation and describe its large deviation asymptotics in a joint sharp interface and small noise limit. Relying on previous results on the variational convergence of the action functional, we prove the large deviation upper bound. The corresponding rate function is finite only when there exists a time evolving interface of codimension one between the two stable phases. The zero level set of this rate function is given by the evolution by mean curvature in the sense of Brakke. Finally, the rate function can be written in terms of the sum of two non-negative quantities: the first measures how much the velocity of the interface deviates from its mean curvature, while the second is due to the possible occurrence of nucleation events.
description: 41 pages
First Peek with JWST/NIRCam Wide-Field Slitless Spectroscopy: Serendipitous Discovery of a Strong [O III]/H$α$ Emitter at $z=6.11$
Creators: name: Sun, Fengwu
name: Egami, Eiichi
name: Pirzkal, Nor
name: Rieke, Marcia
name: Boyer, Martha
name: Correnti, Matteo
name: Gennaro, Mario
name: Girard, Julien
name: Greene, Thomas P.
name: Kelly, Doug
name: Koekemoer, Anton M.
name: Leisenring, Jarron
name: Misselt, Karl
name: Nikolov, Nikolay
name: Roellig, Thomas L.
name: Stansberry, John
name: Williams, Christina C.
name: Willmer, Christopher N. A.
Publisher: name: arXiv
Year: 2022
Subjects: subject: Astrophysics of Galaxies (astro-ph.GA)
subject: FOS: Physical sciences

description: We report the serendipitous discovery of an [O III] $λλ$4959/5007 and H$α$ line emitter in the Epoch of Reionization (EoR) with the JWST commissioning data taken in the NIRCam wide field slitless spectroscopy (WFSS) mode. Located $\sim$55" away from the flux calibrator P330-E, this galaxy exhibits bright [O III] $λλ$4959/5007 and H$α$ lines detected at 3.7, 9.9 and 5.7$σ$, respectively, with a spectroscopic redshift of $z=6.112\pm0.001$. The total H$β$+[O III] equivalent width is 664$\pm$98 Å (454$\pm$78 Å from the [O III] $λ$5007 line). This provides direct spectroscopic evidence for the presence of strong rest-frame optical lines (H$β$+[O III] and H$α$) in EoR galaxies as inferred previously from the analyses of Spitzer/IRAC spectral energy distributions. Two spatial and velocity components are identified in this source, possibly indicating that this system is undergoing a major merger, which might have triggered the ongoing starburst with strong nebular emission lines over a timescale of $\sim$2 Myr as our SED modeling suggests. The tentative detection of He II $λ$4686 line ($1.9σ$), if real, may indicate the existence of very young and metal-poor star-forming regions with a hard UV radiation field. Finally, this discovery demonstrates the power and readiness of the JWST/NIRCam WFSS mode, and marks the beginning of a new era for extragalactic astronomy, in which EoR galaxies can be routinely discovered via blind slitless spectroscopy through the detection of rest-frame optical emission lines.
description: 10 pages, 4 figures, published in the ApJL
Correlated Edge Overlaps in Multiplex Networks
Creators: name: Baxter, Gareth J.
name: Bianconi, Ginestra
name: da Costa, Rui A.
name: Dorogovtsev, Sergey N.
name: Mendes, José F. F.
Publisher: name: arXiv
Year: 2016
Subjects: subject: Physics and Society (physics.soc-ph)
subject: Disordered Systems and Neural Networks (cond-mat.dis-nn)
subject: FOS: Physical sciences

description: We develop the theory of sparse multiplex networks with partially overlapping links based on their local tree-likeness. This theory enables us to find the giant mutually connected component in a two-layer multiplex network with arbitrary correlations between connections of different types. We find that correlations between the overlapping and non-overlapping links markedly change the phase diagram of the system, leading to multiple hybrid phase transitions. For assortative correlations we observe recurrent hybrid phase transitions.
description: 9 pages, 5 figures
title: Colégio Real dos Nobres
Creators: name: de Almeida Barata, João
Publisher: name: CHAM, Faculdade de Ciências Sociais e Humanas, Universidade Nova de Lisboa
Year: 2022

description: Entrada histórica sobre a instituição Colégio Real dos Nobres, Lisboa, Portugal, na plataforma eViterbo
description: Almeida Barata, João de . 2022. Colégio Real de Nobres in eViterbo. CHAM, Faculdade de Ciências Sociais e Humanas, Universidade Nova de Lisboa. eISBN: 978-989-8492-77-7
On post-inflation validity of perturbation theory in Horndeski scalar-tensor models
Creators: name: Germani, Cristiano
name: Kudryashova, Nina
name: Watanabe, Yuki
Publisher: name: arXiv
Year: 2015
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: By using the newtonian gauge, we re-confirm that, as in the minimal case, the re-scaled Mukhanov-Sasaki variable is conserved leading to a constraint equation for the Newtonian potential. However, conversely to the minimal case, in Horndeski theories, the super-horizon Newtonian potential can potentially grow to very large values after inflation exit. If that happens, inflationary predictability is lost during the oscillating period. When this does not happen, the perturbations generated during inflation can be standardly related to the CMB, if the theory chosen is minimal at low energies. As a concrete example, we analytically and numerically discuss the new Higgs inflationary case. There, the Inflaton is the Higgs boson that is non-minimally kinetically coupled to gravity. During the high-energy part of the post-inflationary oscillations, the system is anisotropic and the Newtonian potential is largely amplified. Thanks to the smallness of today's amplitude of curvature perturbations, however, the system stays in the linear regime, so that inflationary predictions are not lost. At low energies, when the system relaxes to the minimal case, the anisotropies disappear and the Newtonian potential converges to a constant value. We show that the constant value to which the Newtonian potential converges is related to the frozen part of curvature perturbations during inflation, precisely like in the minimal case.
description: 15 pages, 4 figures. v4: Discussion in conclusion section improved, Version accepted in JCAP
Superconductivity in two-dimensional disordered Dirac semimetals
Creators: name: Wang, Jing
name: Zhao, Peng-Lu
name: Wang, Jing-Rong
name: Liu, Guo-Zhu
Publisher: name: arXiv
Year: 2016
Subjects: subject: Superconductivity (cond-mat.supr-con)
subject: Strongly Correlated Electrons (cond-mat.str-el)
subject: FOS: Physical sciences

description: In two-dimensional Dirac semimetals, Cooper pairing instability occurs only when the attractive interaction strength $|u|$ is larger than some critical value $|u_{c}|$ because the density of states vanishes at Dirac points. Disorders enhance the low-energy density of states but meanwhile shorten the lifetime of fermions, which tend to promote and suppress superconductivity, respectively. To determine which of the two competing effects wins, we study the interplay of Cooper pairing interaction and disorder scattering by means of renormalization group method. We consider three types of disorders, including random mass, random gauge potential, and random chemical potential, and show that the first two suppress superconductivity. In particular, the critical BCS coupling $|u_{c}|$ is increased to certain larger value if the system contains only random mass or random gauge potential, which makes the onset of superconductivity more difficult. In the case of random chemical potential, the effective disorder parameter flows to the strong coupling regime, where the perturbation expansion breaks down and cannot provide a clear answer concerning the fate of superconductivity. When different types of disorder coexist in one system, their strength parameters all flow to strong couplings. In the strong coupling regime, the perturbative renormalization group method becomes invalid, and one needs to employ other methods to treat the disorder effects. We perform a simple gap equation analysis of the impact of random chemical potential on superconductivity by using the Abrikosov-Gorkov diagrammatic approach, and also briefly discuss the possible generalization of this approach.
description: 15 pages, 11 figures, final version
The partial waves of $B^{*}_{2}(5747)$ and their contributions in strong decays
Creators: name: Liu, Ting-Ting
name: Pei, Su-Yan
name: Li, Wei
name: Han, Meng
name: Wang, Guo-Li
Publisher: name: arXiv
Year: 2022
Subjects: subject: High Energy Physics - Phenomenology (hep-ph)
subject: High Energy Physics - Experiment (hep-ex)
subject: FOS: Physical sciences

description: By adopting the relativistic Bethe-Salpeter method, the OZI allowed strong decays of the $2^+$ state $B^{*}_{2}(5747)^{0}$ are studied, emphasis is paid to the relativistic corrections. We first study the partial waves in the wave functions used, find that there are $P$, $D$ and $F$ partial waves in $B^{*}_{2}(5747)^{0}$ meson, and the ratios $P:D:F=1:0.421:0.051$. We also find $S:P:D=1:0.354:0.046$ for $B^*$, and $S:P=1:0.343$ for $B$ meson. The large components of the $D$ wave in $B^{*}_{2}(5747)^{0}$ and $P$ wave in $B^{(*)}$ means that large relativistic effects existing in these states. Second, we calculate the strong decays, the obtained total decay width $Γ(B^{*}_{2}(5747)^{0})=25.9$ MeV and the branching fraction $Γ(B^{*}_{2}(5747)^{0} \to B^{*}π)$ / $Γ(B^{*}_{2}(5747)^{0} \to Bπ)=0.96$ are consistent well with experimental data. Third, we study the contributions of different partial waves in the initial and final wave functions, find that the relativistic effects are about $15\%$ and $11\%$ for $B^{*}_{2}(5747)^{0} \to Bπ$ and $B^{*}_{2}(5747)^{0} \to B^{*}π$, respectively, which are much smaller than our expected, showing that the relativistic corrections are cancelled to each other in these decays.
description: Version published in EPJC
Supplementary Material from Camouflage using three-dimensional surface disruption
Creators: name: King, Jemma
name: Hemmi, Jan M.
name: Kelley, Jennifer L.
Publisher: name: The Royal Society
Year: 2023
Subjects: subject: Evolutionary Biology
subject: FOS: Biological sciences
subject: Ecology
classificationCode: 60801
subject: Animal Behaviour

description: Example moth images, methods, and an additional figure
Nuclear structure and decay properties of even-even nuclei in $Z=70-80$ drip-line region
Creators: name: Mahapatro, S.
name: Lahiri, C.
name: Kumar, Bharat
name: Mishra, R. N.
name: Patra, S. K.
Publisher: name: arXiv
Year: 2015
Subjects: subject: Nuclear Theory (nucl-th)
subject: FOS: Physical sciences

description: We study nuclear structure properties for various isotopes of Ytterbium (Yb), Hafnium(Hf), Tungsten(W), Osmium(Os), Platinum(Pt) and Mercury(Hg) in $Z = 70 - 80$ drip-line region starting from $N =80$ to $N=170$ within the formalism of relativistic mean field (RMF) theory. The pairing correlation is taken care by using BCS approach. We compared our results with Finite Range Droplet Model(FRDM) and experimental data and found that the calculated results are in good agreement. Neutron shell closure are obtained at $N=82$ and $126$ in this region. We have also studied probable decay mechanisms of these elements.
description: 10 figures, 6 tables
Universal fault-tolerant gates on concatenated stabilizer codes
Creators: name: Yoder, Theodore J.
name: Takagi, Ryuji
name: Chuang, Isaac L.
Publisher: name: arXiv
Year: 2016
Subjects: subject: Quantum Physics (quant-ph)
subject: FOS: Physical sciences

description: It is an oft-cited fact that no quantum code can support a set of fault-tolerant logical gates that is both universal and transversal. This no-go theorem is generally responsible for the interest in alternative universality constructions including magic state distillation. Widely overlooked, however, is the possibility of non-transversal, yet still fault-tolerant, gates that work directly on small quantum codes. Here we demonstrate precisely the existence of such gates. In particular, we show how the limits of non-transversality can be overcome by performing rounds of intermediate error-correction to create logical gates on stabilizer codes that use no ancillas other than those required for syndrome measurement. Moreover, the logical gates we construct, the most prominent examples being Toffoli and controlled-controlled-Z, often complete universal gate sets on their codes. We detail such universal constructions for the smallest quantum codes, the 5-qubit and 7-qubit codes, and then proceed to generalize the approach. One remarkable result of this generalization is that any nondegenerate stabilizer code with a complete set of fault-tolerant single-qubit Clifford gates has a universal set of fault-tolerant gates. Another is the interaction of logical qubits across different stabilizer codes, which, for instance, implies a broadly applicable method of code switching.
description: 18 pages + 5 pages appendix, 12 figures
Disordered Contact Networks in Jammed Packings of Frictionless Disks
Creators: name: Ramola, Kabir
name: Chakraborty, Bulbul
Publisher: name: arXiv
Year: 2016
Subjects: subject: Disordered Systems and Neural Networks (cond-mat.dis-nn)
subject: FOS: Physical sciences

description: We analyse properties of contact networks formed in packings of soft frictionless disks near the unjamming transition. We construct polygonal tilings and triangulations of the contact network that partitions space into convex regions which are either covered or uncovered. This allows us to characterize the local spatial structure of the packing near the transition using well-defined geometric objects. We construct bounds on the number of polygons and triangulation vectors that appear in such packings. We study these networks using simulations of bidispersed disks interacting via a one-sided linear spring potential. We find that several underlying geometric distributions are reproducible and display self averaging properties. We find that the total covered area is a reliable real space parameter that can serve as a substitute for the packing fraction. We find that the unjamming transition occurs at a fraction of covered area $A_G^{*} = 0.446(1)$. We determine scaling exponents of the excess covered area as the energy of the system approaches zero $E_G \to 0^+$, and the coordination number $\langle z_g \rangle$ approaches its isostatic value $ΔZ = \langle z_g \rangle - \langle z_g \rangle_{\rm iso} \to 0^{+}$. We find $ΔA_G \sim Δ{E_G}^{0.28(1)}$ and $ΔA_G \sim ΔZ^{1.00(1)}$, representing new structural critical exponents. We use the distribution functions of local areas to study the underlying geometric disorder in the packings. We find that a finite fraction of order $Ψ_O^* = 0.369(1)$ persists as the transition is approached.
description: 30 pages, 10 figures
Probing deep photospheric layers of the quiet Sun with high magnetic sensitivity
Creators: name: Lagg, A.
name: Solanki, S. K.
name: Doerr, H. -P.
name: González, M. J. Martínez
name: Riethmüller, T.
name: Vera, M. Collados
name: Schlichenmaier, R.
name: Suárez, D. Orozco
name: Franz, M.
name: Feller, A.
name: Kuckein, C.
name: Schmidt, W.
name: Ramos, A. Asensio
name: Yabar, A. Pastor
name: von der Lühe, O.
name: Denker, C.
name: Balthasar, H.
name: Volkmer, R.
name: Staude, J.
name: Hofmann, A.
name: Strassmeier, K.
name: Kneer, F.
name: Waldmann, T.
name: Borrero, J. M.
name: Sobotka, M.
name: Verma, M.
name: Louis, R. E.
name: Rezaei, R.
name: Soltau, D.
name: Berkefeld, T.
name: Sigwarth, M.
name: Schmidt, D.
name: Kiess, C.
name: Nicklas, H.
Publisher: name: arXiv
Year: 2016
Subjects: subject: Solar and Stellar Astrophysics (astro-ph.SR)
subject: FOS: Physical sciences

description: Context. Investigations of the magnetism of the quiet Sun are hindered by extremely weak polarization signals in Fraunhofer spectral lines. Photon noise, straylight, and the systematically different sensitivity of the Zeeman effect to longitudinal and transversal magnetic fields result in controversial results in terms of the strength and angular distribution of the magnetic field vector. Aims. The information content of Stokes measurements close to the diffraction limit of the 1.5 m GREGOR telescope is analyzed. We took the effects of spatial straylight and photon noise into account. Methods. Highly sensitive full Stokes measurements of a quiet-Sun region at disk center in the deep photospheric Fe I lines in the 1.56 μm region were obtained with the infrared spectropolarimeter GRIS at the GREGOR telescope. Noise statistics and Stokes V asymmetries were analyzed and compared to a similar data set of the Hinode spectropolarimeter (SOT/SP). Simple diagnostics based directly on the shape and strength of the profiles were applied to the GRIS data. We made use of the magnetic line ratio technique, which was tested against MHD simulations. Results. About 80% of the GRIS spectra of a very quiet solar region show polarimetric signals above a 3σ level. Area and amplitude asymmetries agree well with small-scale surface dynamo MHD simulations. The magnetic line ratio analysis reveals ubiquitous magnetic regions in the ten to hundred Gauss range with some concentrations of kilo-Gauss fields. Conclusions. The GRIS spectropolarimetric data at a spatial resolution of 0.40" are so far unique in the combination of high spatial resolution scans and high magnetic field sensitivity. Nevertheless, the unavoidable effect of spatial straylight and the resulting dilution of the weak Stokes profiles means that inversion techniques still bear a high risk of misinterpretating the data.
description: 13 pages, 14 figures, accepted for publication in A&A
Covariant effective action for a Galilean invariant quantum Hall system
Creators: name: Geracie, Michael
name: Prabhu, Kartik
name: Roberts, Matthew M.
Publisher: name: arXiv
Year: 2016
Subjects: subject: Mesoscale and Nanoscale Physics (cond-mat.mes-hall)
subject: High Energy Physics - Theory (hep-th)
subject: FOS: Physical sciences

description: We construct effective field theories for gapped quantum Hall systems coupled to background geometries with local Galilean invariance i.e. Bargmann spacetimes. Along with an electromagnetic field, these backgrounds include the effects of curved Galilean spacetimes, including torsion and a gravitational field, allowing us to study charge, energy, stress and mass currents within a unified framework. A shift symmetry specific to single constituent theories constraints the effective action to couple to an effective background gauge field and spin connection that is solved for by a self-consistent equation, providing a manifestly covariant extension of Hoyos and Son's improvement terms to arbitrary order in $m$.
description: v2: updated version published in JHEP; v1: 25 pages + Appendix
Guillemette, Pierre: Analyse des griechischen Neuen Testaments
Creators: name: Siebenthal, Heinrich Von
Publisher: name: Jahrbuch für evangelikale Theologie
Year: 2025

description: 1821195434
description: Jahrbuch für evangelikale Theologie, V. 3 (1989): Jahrbuch für evangelikale Theologie, Band 3
Diphoton decay for a $750$ GeV scalar boson in an $U(1)_{X}$ model
Creators: name: Martinez, R.
name: Ochoa, F.
name: Sierra, C. F.
Publisher: name: arXiv
Year: 2015
Subjects: subject: High Energy Physics - Phenomenology (hep-ph)
subject: FOS: Physical sciences

description: In the context of a nonuniversal and anomaly free $U(1)_{X}$ extension of the standard model, we examine the decay of a $750$GeV scalar singlet state, $ξ_χ$, as a possible explanation of the observed diphoton excess announced by the ATLAS and CMS collaborations at CERN-LHC collider. One-loop decay to photons is allowed through three heavy singlet quarks and one charged Higgs boson into the loop. We obtain, for different width approximations and for masses of the exotic singlet quarks in the region $[900,\,3000]$ GeV, a production cross section $σ(pp\toξ_χ\toγγ)$ compatible with ATLAS and CMS collaborations data. We also include another scalar singlet, $σ$, as a dark matter candidate that may couple with the 750 GeV scalar at tree level with production cross sections in agreement with ATLAS and CMS.
description: 5 figures, discussion extended, 2 new figures
Meier, Gerhard (Hrsg.) ... : Das Große Bibellexikon
Creators: name: Schnabel, Eckhard J.
Publisher: name: Jahrbuch für evangelikale Theologie
Year: 2025

description: 1821195248
description: Jahrbuch für evangelikale Theologie, V. 3 (1989): Jahrbuch für evangelikale Theologie, Band 3
Quantum Key Distribution with a Hand-held Sender Unit
Creators: name: Vest, Gwenaelle
name: Freiwang, Peter
name: Luhn, Jannik
name: Vogl, Tobias
name: Rau, Markus
name: Knips, Lukas
name: Rosenfeld, Wenjamin
name: Weinfurter, Harald
Publisher: name: arXiv
Year: 2022
Subjects: subject: Quantum Physics (quant-ph)
subject: FOS: Physical sciences

description: Quantum key distribution (QKD) is a crucial component for truly secure communication, which enables to analyze leakage of information due to eavesdropper attacks. While impressive progress was made in the field of long-distance implementations, user-oriented applications involving short-distance links have mostly remained overlooked. Recent technological advances in integrated photonics now enable developments towards QKD also for existing hand-held communication platforms. In this work we report on the design and evaluation of a hand-held free-space QKD system including a micro-optics based sender unit. This system implements the BB84-protocol employing polarization-encoded faint laser pulses at a rate of 100 MHz. Unidirectional beam tracking and live reference-frame alignment systems at the receiver side enable a stable operation over tens of seconds when aiming the portable transmitter to the receiver input by hand from a distance of about half a meter. The user-friendliness of our system was confirmed by successful key exchanges performed by different untrained users with an average link efficiency of about 20 % relative to the case of the transmitter being stationarily mounted and aligned. In these tests we achieve an average quantum bit error ratio (QBER) of 2.4 % and asymptotic secret key rates ranging from 4.0 kbps to 15.3 kbps. Given its compactness, the versatile sender optics is also well suited for integration into other free-space communication systems enabling QKD over any distance.
description: 13 pages, 5 figures. Comments are welcome
Sharp transitions in low-number quantum dots Bayesian magnetometry
Creators: name: Mazurek, Paweł
name: Horodecki, Michał
name: Czekaj, Łukasz
name: Horodecki, Paweł
Publisher: name: arXiv
Year: 2016
Subjects: subject: Quantum Physics (quant-ph)
subject: FOS: Physical sciences

description: We consider Bayesian estimate of static magnetic field, characterized by a prior Gaussian probability distribution, in systems of a few electron quantum dot spins interacting with infinite temperature spin environment via hyperfine interaction. Sudden transitions among optimal states and measurements are observed. Usefulness of measuring occupation levels is shown for all times of the evolution, together with the role of entanglement in the optimal scenario. For low values of magnetic field, memory effects stemming from the interaction with environment provide limited metrological advantage.
description: 9 pages, 7 figures, section III expanded, citations added, results unchanged
Magnetic Solitons in a Binary Bose-Einstein Condensate
Creators: name: Qu, Chunlei
name: Pitaevskii, Lev P.
name: Stringari, Sandro
Publisher: name: arXiv
Year: 2016
Subjects: subject: Quantum Gases (cond-mat.quant-gas)
subject: FOS: Physical sciences

description: We study solitary waves of polarization (magnetic solitons) in a two-component Bose gas with slightly unequal repulsive intra- and interspin interactions. In experimentally relevant conditions we obtain an analytical solution which reveals that the width and the velocity of magnetic solitons are explicitly related to the spin healing length and the spin sound velocity of the Bose mixture, respectively. We calculate the profiles, the energy and the effective mass of the solitons in the absence of external fields and investigate their oscillation in a harmonic trap where the oscillation period is calculated as a function of the oscillation amplitude. The stability of magnetic solitons in two dimensions and the conditions for their experimental observation are also briefly discussed.
description: published version, 4.5 pages, 4 figures
Charged quark stars in $f(R,T)$ gravity
Creators: name: Pretel, Juan M. Z.
name: Tangphati, Takol
name: Banerjee, Ayan
name: Pradhan, Anirudh
Publisher: name: arXiv
Year: 2022
Subjects: subject: General Relativity and Quantum Cosmology (gr-qc)
subject: High Energy Astrophysical Phenomena (astro-ph.HE)
subject: Nuclear Theory (nucl-th)
subject: FOS: Physical sciences

description: Recent advances in nuclear theory combined with new astrophysical observations have led to the need for specific theoretical models that actually apply to phenomena on dense-matter physics. At the same time, quantum chromodynamics (QCD) predicts the existence of non-nucleonic degrees of freedom at high densities in neutron-star matter, such as quark matter. Within a confining quark matter model, which consists of homogeneous, neutral 3-flavor interacting quark matter with $\mathcal{O}(m_s^4)$ corrections, we study the structure of compact stars made of a charged perfect fluid in the context of $f(R,T)$ gravity. The system of differential equations that describe the structure of charged compact stars have been derived and solved numerically for a gravity model with $f(R,T)= R+ 2βT$. For simplicity, we assume that the charge density is proportional to the energy density, namely, $ρ_{\rm ch} = αρ$. It is demonstrated that matter-geometry coupling constant $β$ and the charge parameter $α$ affect the total gravitational mass and the radius of the star.
description: 10 pages, 6 figures. To appear in Chinese Physics C
Carson, Don A. und Woodbridge, John D. (Hrsg.): Hermeneutics, Authority and Canon
Creators: name: Bayer, Hans F.
Publisher: name: Jahrbuch für evangelikale Theologie
Year: 2025

description: 1821194829
description: Jahrbuch für evangelikale Theologie, V. 3 (1989): Jahrbuch für evangelikale Theologie, Band 3
Exciton localization on p-i-n junctions in two-dimensional crystals
Creators: name: Szafran, B.
Publisher: name: arXiv
Year: 2022
Subjects: subject: Mesoscale and Nanoscale Physics (cond-mat.mes-hall)
subject: FOS: Physical sciences

description: We consider a neutral exciton localized on a model p-i-n junction defined in a two-dimensional crystal: MoSe$_2$ and phosphorene, using a variational approach to the effective mass Hamiltonian. The non-homogeneous electric field at the junction prevents the separation of the center of mass. The variational solution provides the exciton density in the real space and accounts for the kinetic energy due to the exciton localization. For low values of the potential step across the junction, the exciton occupies an area which is much larger than the nominal range of the junction and the energy remains essentially insensitive to the value of the step. Localization of the exciton within the junction area is accompanied by the appearance of the dipole moment induced by the local electric field. The dipole moment becomes a linear function of the potential step only when the step is sufficiently large. In consequence, the energy dependence on the step value is non-parabolic. We demonstrate that the exciton gets localized not exactly at the center of the junction but on the side which is more energetically favourable for the heavier carrier: electron or hole.
Gravitationally induced adiabatic particle production: From Big Bang to de Sitter
Creators: name: de Haro, Jaume
name: Pan, Supriya
Publisher: name: arXiv
Year: 2015
Subjects: subject: General Relativity and Quantum Cosmology (gr-qc)
subject: FOS: Physical sciences

description: In the background of a flat homogeneous and isotropic space-time, we consider a scenario of the universe driven by the gravitationally induced `adiabatic' particle production with constant creation rate. We have shown that this universe attains a big bang singularity in the past and at late-time it asymptotically becomes de Sitter. To clarify this model universe, we perform a dynamical analysis and found that the universe attains a thermodynamic equilibrium in this late de Sitter phase. Finally, for the first time, we have discussed the possible effects of `adiabatic' particle creations in the context of Loop Quantum Cosmology.
description: 11 pages, 2 figures, Published version in Classical and Quantum Gravity
Meaningful timescales from Monte Carlo simulations of molecular systems with hard-core interactions
Creators: name: Costa, Liborio I.
Publisher: name: arXiv
Year: 2016
Subjects: subject: Computational Physics (physics.comp-ph)
subject: Statistical Mechanics (cond-mat.stat-mech)
subject: FOS: Physical sciences
subject: 65P99, 37M99, 65Z05

description: A new Markov Chain Monte Carlo method for simulating the dynamics of molecular systems characterized by hard-core interactions is introduced. In contrast to traditional Kinetic Monte Carlo approaches, where the state of the system is associated with minima in the energy landscape, in the proposed method, the state of the system is associated with the set of paths traveled by the atoms and the transition probabilities for an atom to be displaced are proportional to the corresponding velocities. In this way, the number of possible state-to-state transitions is reduced to a discrete set, and a direct link between the Monte Carlo time step and true physical time is naturally established. The resulting rejection-free algorithm is validated against event-driven molecular dynamics: the equilibrium and non-equilibrium dynamics of hard disks converge to the exact results with decreasing displacement size.
description: 14 pages, 5 figures + 5 pages of Supplementary Information including computational details and additional figures and schemes
Analogue non-causal Null Curves and Chronology protection in a dc-SQUID Array
Creators: name: Sabín, Carlos
Publisher: name: arXiv
Year: 2022
Subjects: subject: Quantum Physics (quant-ph)
subject: General Relativity and Quantum Cosmology (gr-qc)
subject: FOS: Physical sciences

description: We propose an analogue quantum simulator of a 1+1 D spacetime containing non-causal curves,in particular, null geodesics going back in time, by means of a dc-SQUID array embedded on an open superconducting transmission line. This is achieved by mimicking the spatial dependence of the metric with the propagation speed of the electromagnetic field in the simulator, which can be modulated by an external magnetic flux. We show that it is possible to simulate a spacetime region containing non-causal null geodesics, but not a full spacetime containing a chronological horizon separating regions with non-causal null geodesics and regions without them. This is in agreement with a recent suggestion of analogue-gravity chronology protection mechanism by Barceló et al.
description: Submitted as invited contribution to the Special Issue of Universe "The Physics of Time Travel". v2: minor changes, published version