cometadata/datacite-rtg-text-other-reclassification-records huggingface dataset:
Many-body transverse interactions in the quantum annealing of the p-spin ferromagnet
Creators: name: Seoane, Beatriz
name: Nishimori, Hidetoshi
Publisher: name: arXiv
Year: 2012
Subjects: subject: Quantum Physics (quant-ph)
subject: FOS: Physical sciences

description: We study the performance of quantum annealing for the simple $p$-body infinite-range ferromagnetic Ising model. In particular, we generalize the transverse antiferromagnetic interactions proposed by Seki and Nishimori as a quantum driver to many-body transverse interactions to understand if the two-body interactions are essential to allow the system to avoid troublesome first-order quantum phase transitions. We conclude that the general many-body interactions are effective to let the system evolve only through second-order transitions as long as a few minor conditions are satisfied. It is also discussed whether the overlap of the ground-state wave function of the new driver term with the target ground state is an essential factor for the success.
description: 24 pages, 8 figures
Cell-Free Massive MIMO for URLLC: A Finite-Blocklength Analysis
Creators: name: Lancho, Alejandro
name: Durisi, Giuseppe
name: Sanguinetti, Luca
Publisher: name: arXiv
Year: 2022
Subjects: subject: Information Theory (cs.IT)
subject: Signal Processing (eess.SP)
subject: FOS: Computer and information sciences
subject: FOS: Electrical engineering, electronic engineering, information engineering

description: We present a general framework for the characterization of the packet error probability achievable in cell-free Massive multiple-input multiple output (MIMO) architectures deployed to support ultra-reliable low-latency (URLLC) traffic. The framework is general and encompasses both centralized and distributed cell-free architectures, arbitrary fading channels and channel estimation algorithms at both network and user-equipment (UE) sides, as well as arbitrary combining and precoding schemes. The framework is used to perform numerical experiments on specific scenarios, which illustrate the superiority of cell-free architectures compared to cellular architectures in supporting URLLC traffic in uplink and downlink. Also, these numerical experiments provide the following insights into the design of cell-free architectures for URLLC: i) minimum mean square error (MMSE) spatial processing must be used to achieve the URLLC targets; ii) for a given total number of antennas per coverage area, centralized cell-free solutions involving single-antenna access points (APs) offer the best performance in the uplink, thereby highlighting the importance of reducing the average distance between APs and UEs in the URLLC regime; iii) this observation applies also to the downlink, provided that the APs transmit precoded pilots to allow the UEs to estimate accurately the precoded channel.
description: 13 pages, 8 figures, 1 table, accepted version at IEEE Transactions on Wireless Communications
Valerie A. Maxfield, The Military Decorations of the Roman Army
Creators: name: Oldenstein, Jürgen
Publisher: name: Bonner Jahrbücher
Year: 2019

description: Rezension zu: Valerie A. Maxfield, The Military Decorations of the Roman Army. Verlag B. T. Batsford Ltd., London 1981. 304 Seiten, 14 Tabellen, 17 Textabbildungen und 16 Tafeln
description: Bonner Jahrbücher, Bd. 186.1986: Bonner Jahrbücher
MOOS-3: Seawater certified reference material for nutrients: certificate of analysis
Creators: name: Clancy, Vincent
name: Pihillagawa Gedara, Indu
name: Grinberg, Patricia
name: Meija, Juris
name: Mester, Zoltan
name: Pagliano, Enea
name: Willie, Scott
name: Yang, Lu
Publisher: name: National Research Council Canada
Year: 2014
Subjects: subject: Canadian reference material
subject: MOOS-3
subject: nutrients
subject: phosphate
subject: silicate
subject: nitrite
subject: nitrate
subject: sea water

description: Certified values for the concentration of phosphate, silicate, nitrite, and nitrate have been established for this seawater certified reference material (MOOS-3).
Michael Vanderhoeven, La terre sigillée
Creators: name: Haalebos, Jan Kees
Publisher: name: Bonner Jahrbücher
Year: 2019

description: Rezension zu: Michael Vanderhoeven, La terre sigillée. Cahiers de l’Institut Archéologique Liégeois 1. Lüttich 1984. 34 Seiten und 28 Tafeln
description: Bonner Jahrbücher, Bd. 186.1986: Bonner Jahrbücher
On the Origin of the Quantum Rules for Identical Particles
Creators: name: Neori, Klil H.
name: Goyal, Philip
Publisher: name: arXiv
Year: 2012
Subjects: subject: Quantum Physics (quant-ph)
subject: History and Philosophy of Physics (physics.hist-ph)
subject: FOS: Physical sciences

description: We present a proof of the Symmetrization Postulate for the special case of noninteracting, identical particles. The proof is given in the context of the Feynman formalism of Quantum Mechanics, and builds upon the work of Goyal, Knuth and Skilling (Phys. Rev. A 81, 022109 (2010)), which shows how to derive Feynman's rules from operational assumptions concerning experiments. Our proof is inspired by an attempt to derive this result due to Tikochinsky (Phys. Rev. A 37, 3553 (1988)), but substantially improves upon his argument, by clarifying the nature of the subject matter, by improving notation, and by avoiding strong, abstract assumptions such as analyticity.
description: 8 pages, all figures embedded as TikZ. V2 clarified wording from V1 in response to reviewer
Determination of mass hierarchy with medium baseline reactor neutrino experiments
Creators: name: Ge, Shao-Feng
name: Hagiwara, Kaoru
name: Okamura, Naotoshi
name: Takaesu, Yoshitaro
Publisher: name: arXiv
Year: 2012
Subjects: subject: High Energy Physics - Phenomenology (hep-ph)
subject: FOS: Physical sciences

description: We study the sensitivity of future medium baseline reactor antineutrino experiments on the neutrino mass hierarchy. By using the standard chi^2 analysis, we find that the sensitivity depends strongly on the baseline length L and the energy resolution (delta E/E)^2 = (a/sqrt{E/MeV})^2 + b^2, where a and b parameterize the statistical and systematic uncertainties, respectively. The optimal length is found to be L ~ 40-55 km, where a slightly shorter L in the range is preferred for poorer energy resolution. The running time needed to determine the mass hierarchy also depends strongly on the energy resolution; for a 5 kton detector (with 12% weight fraction of free proton) placed at L ~ 50 km away from a 20 GW_{th} reactor, three-sigma determination needs 14 years of running with a = 3% and b = 0.5%, which can be reduced to 5 years if a = 2% and b = 0.5%. On the other hand, the experiment can measure the mixing parameters accurately, achieving delta sin^2(2theta_{12}) ~ 4*10^{-3}, delta (m_2^2-m_1^2) ~ 0.03*10^{-5} eV^2, and delta |m_3^2 -m_1^2| ~ 0.007*10^{-3} eV^2, in 5 years, almost independently of the energy resolution for a < 3% and b < 1%. In order to compare our simple (Delta chi^2)_{min} results with those obtained by simulating many experiments, we develop an efficient method to estimate the uncertainty of (Delta chi^2)_{min}, and the probability for determining the right mass hierarchy by an experiment is presented as a function of the mean (Delta chi^2)_{min}.
description: 19 pages, 9 figures, 1 table
Renate Bol, Das Statuenprogramm des Herodes-Atticus-Nymphäums
Creators: name: Fuchs, Michaela
Publisher: name: Bonner Jahrbücher
Year: 2019

description: Rezension zu: Renate Bol, Das Statuenprogramm des Herodes-Atticus-Nymphäums. Mit Beiträgen von Adolf Hoffmann und Leonhard Schumacher. Olympische Forschungen 15. Verlag Walter de Gruyter & Co., Berlin 1984. 210 Seiten, 198 Abbildungen auf 70 Tafeln, 6 Beilagen
description: Bonner Jahrbücher, Bd. 186.1986: Bonner Jahrbücher
ByzRev 03.2021.025: Robert Byron, Der Berg Athos. Reise nach Griechenland.
Creators: name: Grünbart, Michael
Publisher: name: The Byzantine Review
Year: 2021

description: Robert Byron, Der Berg Athos. Reise nach Griechenland. Übersetzt aus dem Englischen von Niklas Hoffmann-Walbeck (Die Andere Bibliothek 422). Berlin: AB – Die Andere Bibliothek 2020. 405 S. – ISBN: 978-3-8477-0422-5 (€ 44.00)
description: The Byzantine Review, Vol 3 (2021)
Simple bounds with best possible accuracy for ratios of modified Bessel functions
Creators: name: Segura, J.
Publisher: name: arXiv
Year: 2022
Subjects: subject: Classical Analysis and ODEs (math.CA)
subject: FOS: Mathematics
subject: 33C10, 26D07

description: The best bounds of the form $B(α,β,γ,x)=(α+\sqrt{β^2+γ^2 x^2})/x$ for ratios of modified Bessel functions are characterized: if $α$, $β$ and $γ$ are chosen in such a way that $B(α,β,γ,x)$ is a sharp approximation for $Φ_ν(x)=I_{ν-1} (x)/I_ν(x)$ as $x\rightarrow 0^+$ (respectively $x\rightarrow +\infty$) and the graphs of the functions $B(α,β,γ,x)$ and $Φ_ν(x)$ are tangent at some $x=x_*>0$, then $B(α,β,γ,x)$ is an upper (respectively lower) bound for $Φ_ν(x)$ for any positive $x$, and it is the best possible at $x_*$. The same is true for the ratio $Φ_ν(x)=K_{ν+1} (x)/K_ν(x)$ but interchanging lower and upper bounds (and with a slightly more restricted range for $ν$). Bounds with maximal accuracy at $0^+$ and $+\infty$ are recovered in the limits $x_*\rightarrow 0^+$ and $x_*\rightarrow +\infty$, and for these cases the coefficients have simple expressions. For the case of finite and positive $x_*$ we provide uniparametric families of bounds which are close to the optimal bounds and retain their confluence properties.
ByzRev 03.2021.023: Christfried Böttrich – Dieter Fahl – Sabine Fahl (Hrsg.),Von der Historienbibel zur Weltchronik. Studien zur Paleja-Literatur
Creators: name: Jouravel, Anna
Publisher: name: The Byzantine Review
Year: 2021

description: Christfried Böttrich – Dieter Fahl – Sabine Fahl (Hrsg.),Von der Historienbibel zur Weltchronik. Studien zur Paleja-Literatur (Greifswalder Theologische Forschungen 31). Leipzig: Evangelische Verlagsanstalt 2020. 408 S. – ISBN: 978-3-374-06607-0 (€ 98.00)
description: The Byzantine Review, Vol 3 (2021)
ByzRev 03.2021.021: Christodoulos Papavarnavas, Gefängnis als Schwellenraum der byzantinischen Hagiographie.
Creators: name: Pratsch, Thomas
Publisher: name: The Byzantine Review
Year: 2021

description: Christodoulos Papavarnavas, Gefängnis als Schwellenraum der byzantinischen Hagiographie. Eine Untersuchung früh- und mittelbyzantinischer Märtyrerakten (Millennium-Studien 90). Berlin – Boston: De Gruyter 2021. XIV, 246 S. – ISBN: 978-3-11-072542-1 (€ 89.95)
description: The Byzantine Review, Vol 3 (2021)
Herrmann Büsing, Römische Militärarchitektur in Mainz
Creators: name: Baatz, Dietwulf
Publisher: name: Bonner Jahrbücher
Year: 2019

description: Rezension zu: Herrmann Büsing, Römische Militärarchitektur in Mainz. Römisch-Germanische Forschungen 40. Verlag Philipp von Zabern, Mainz 1982. 97 Seiten, 36 Abbildungen und 43 Tafeln
description: Bonner Jahrbücher, Bd. 186.1986: Bonner Jahrbücher
ByzRev 03.2021.020: Ingela Nilsson, Writer and Occasion in Twelfth-century Byzantium: the Authorial Voice of Constantine Manasses.
Creators: name: Loukaki, Marina
Publisher: name: The Byzantine Review
Year: 2021

description: Ingela Nilsson, Writer and Occasion in Twelfth-century Byzantium: the Authorial Voice of Constantine Manasses. Cambridge – New York: Cambridge University Press 2020. X, 222 pp. – ISBN: 978-1-108-84335-5 (hardback).
description: The Byzantine Review, Vol 3 (2021)
EMMS-1: Enriched methylmercury isotopic certified reference material: certificate of analysis
Creators: name: Meija, Juris
name: Grinberg, Patricia
name: Mester, Zoltan
name: Sturgeon, Ralph
name: Willie, Scott
name: Yang, Lu
Publisher: name: National Research Council Canada
Year: 2013
Subjects: subject: Canadian reference material
subject: EMMS-1
subject: methylmercury
subject: mercury-198
subject: isotopes of mercury
subject: atomic weight

description: Certified values for isotope amount ratios, isotope abundances and atomic weight of mercury have been established for this mercury-198 enriched methylmercury isotopic certified reference material (EMMS-1).
Magneto-thermomechanically triggered active mechanical metamaterials -- untethered, reversible, reprogrammable transformations with shape locking
Creators: name: Zou, Bihui
name: Liang, Zihe
name: Cui, Zhiming
name: Xiao, Kai
name: Shao, Shuang
name: Ju, Jaehyung
Publisher: name: arXiv
Year: 2022
Subjects: subject: Materials Science (cond-mat.mtrl-sci)
subject: Applied Physics (physics.app-ph)
subject: FOS: Physical sciences

description: Future active metamaterials for reconfigurable structural applications require fast, untethered, reversible, and reprogrammable (multimodal) transformability with shape locking. Herein, we aim to construct and demonstrate a magneto-thermomechanical tool that enables a single material system to transform with untethered, reversible, low-powered reprogrammable deformations and shape locking via the application of magneto-thermomechanically triggered prestress on a shape memory polymer and structural instability with asymmetric magnetic torque. We demonstrate the mutual assistance of two physics concepts - magnetic control combined with the thermomechanical behavior of shape memory polymers, without requiring new materials synthesis and high-power energy for reprogramming. Our approach can open a new path of active metamaterials, flexible yet stiff soft robots, and multimodal morphing structures, where we can design them in reversible and reprogrammable ways.
S. S. Frere et J. K. S. St Joseph, Roman Britain from the Air
Creators: name: Paunier, Daniel
Publisher: name: Bonner Jahrbücher
Year: 2019

description: Rezension zu: S. S. Frere et J. K. S. St Joseph, Roman Britain from the Air. Cambridge University Press, Cambridge 1983. 232 pages, 142 photographies, 18 figures.
description: Bonner Jahrbücher, Bd. 186.1986: Bonner Jahrbücher
Commutative S-algebras of prime characteristics and applications to unoriented bordism
Creators: name: Szymik, Markus
Publisher: name: arXiv
Year: 2012
Subjects: subject: Algebraic Topology (math.AT)
subject: Geometric Topology (math.GT)
subject: Number Theory (math.NT)
subject: FOS: Mathematics
subject: 55P43 (Primary) 13A35, 55P20, 55P42 (Secondary)

description: The notion of highly structured ring spectra of prime characteristic is made precise and is studied via the versal examples S//p for prime numbers p. These can be realized as Thom spectra, and therefore relate to other Thom spectra such as the unoriented bordism spectrum MO. We compute the Hochschild and André-Quillen invariants of the S//p. Among other applications, we show that S//p is not a commutative algebra over the Eilenberg-Mac Lane spectrum HF_p, although the converse is clearly true, and that MO is not a polynomial algebra over S//2.
description: 33 pages
MOOS-3: Matériau de référence certifié d’eau de mer pour les éléments nutritifs : certificat d'analyse
Creators: name: Clancy, Vincent
name: Pihillagawa Gedara, Indu
name: Grinberg, Patricia
name: Meija, Juris
name: Mester, Zoltan
name: Pagliano, Enea
name: Willie, Scott
name: Yang, Lu
Publisher: name: National Research Council Canada
Year: 2014
Subjects: subject: matériau de référence canadien
subject: MOOS-3
subject: nutritifs
subject: phosphate
subject: silicate
subject: nitrite
subject: nitrate
subject: eau de mer

description: Les valeurs certifiées suivantes ont été établies pour le matériau de référence d’eau de mer: concentration de phosphate, silicate, nitrite, et nitrate (MOOS-3).
EMMS-1: Matériau de référence certifié – méthylmercure isotopiquement enrichi : certificat d'analyse
Creators: name: Meija, Juris
name: Grinberg, Patricia
name: Mester, Zoltan
name: Sturgeon, Ralph
name: Willie, Scott
name: Yang, Lu
Publisher: name: National Research Council Canada
Year: 2013
Subjects: subject: matériau de référence canadien
subject: EMMS-1
subject: méthylmercure
subject: mercure-198
subject: isotopes de mercure
subject: poids atomique

description: Les valeurs certifiées suivantes ont été établies pour ce matériau de référence méthylmercure isotopiquement enrichi en isotope 198: ratios de contenu d’isotopes, abondance isotopique, et masse atomique du mercure (EMMS-1).
Dataset Metadata Publication Through Ezid
Creators: name: Kratz, John Ernest
name: Kunze, John
name: Abrams, Stephen
name: Janee, Greg
name: Starr, Joan
name: Strasser, Carly
Publisher: name: Zenodo
Year: 2014
Subjects: data publication

description: Although there is consensus that datasets should be treated like “first class” research objects in how they are discovered, cited, and recognized, this is still far from a reality. Datasets are poorly indexed by search engines, and they are rarely cited in formal reference lists. A solution that a number of journals are implementing is to publish discovery and citation proxy objects in the form of peer-reviewed “data papers.” A strength of this approach is that it requires dataset creators to write up rich and useful metadata for the paper, but an accompanying weakness is that busy creators are not always willing to invest the necessary time and energy. To enhance dataset discoverability without burdening creators, EZID (easy-eye-dee) will begin using dataset metadata to automatically generate lightweight, non-peer reviewed publications that will increase the exposure of the metadata to search engines. EZID (ezid.cdlib.org) maintains public DataCite metadata records for over 167,000 datasets, any of which could be viewed as HTML or as a dynamically generated PDF. In cases where the creator has submitted only the required DataCite metadata, the document will function as a cover-sheet or landing page. If the creator chooses to submit optional Abstract and Methods metadata (over 2,000 records already contain Abstracts), the document expands to more closely resemble a traditional journal article, while retaining the linking functionality of a landing page. A potential bonus is that providing an incrementally improved document in exchange for the effort of submitting incrementally improved metadata may encourage authors to submit more than the minimum required metadata.
Perturbation Bounds for Quantum Markov Processes and their Fixed Points
Creators: name: Szehr, Oleg
name: Wolf, Michael M.
Publisher: name: arXiv
Year: 2012
Subjects: subject: Mathematical Physics (math-ph)
subject: Quantum Physics (quant-ph)
subject: FOS: Physical sciences

description: We investigate the stability of quantum Markov processes with respect to perturbations of their transition maps. In the first part, we introduce a condition number that measures the sensitivity of fixed points of a quantum channel to perturbations. We establish upper and lower bounds on this condition number in terms of subdominant eigenvalues of the transition map. In the second part, we consider quantum Markov processes that converge to a unique stationary state and we analyze the stability of the evolution at finite times. In this way we obtain a linear relation between the mixing time of a quantum Markov process and the sensitivity of its fixed point with respect to perturbations of the transition map.
description: 6 pages
ByzRev 03.2021.017: Karin Metzler (ed.), Prokop von Gaza, Eclogarum in libros historicos Veteris Testamenti epitome. 2020 / Karin Metzler (ed.), Prokop von Gaza, Der Exoduskommentar. 2020
Creators: name: Cattaneo, Gianmario
Publisher: name: The Byzantine Review
Year: 2021

description: Karin Metzler (ed.), Prokop von Gaza, Eclogarum in libros historicos Veteris Testamenti epitome. Teil 2: Der Exoduskommentar (Die griechischen christlichen Schriftsteller der ersten Jahrhunderte. Neue Folge 27). Berlin – Boston: De Gruyter 2020. 402 S. – ISBN: 978-3-1106-9485-7; e-ISBN: 978-3-1106-9493-2 (€ 139.95) Karin Metzler (ed.), Prokop von Gaza, Der Exoduskommentar. Übersetzt und mit Anmerkungen versehen (Die griechischen christlichen Schriftsteller der ersten Jahrhunderte. Neue Folge 28). Berlin – Boston: De Gruyter 2020. 382 S. – ISBN: 978-3-1106-9486-4; e-ISBN: 978-3-1106-9490-1 (€ 129.95)
description: The Byzantine Review, Vol 3 (2021)
Prospecting in late-type dwarfs: a calibration of infrared and visible spectroscopic metallicities of late-K and M dwarfs spanning 1.5 dex
Creators: name: Mann, Andrew W.
name: Brewer, John M.
name: Gaidos, Eric
name: Lepine, Sebastien
name: Hilton, Eric J.
Publisher: name: arXiv
Year: 2012
Subjects: subject: Solar and Stellar Astrophysics (astro-ph.SR)
subject: Earth and Planetary Astrophysics (astro-ph.EP)
subject: FOS: Physical sciences

description: Knowledge of late K and M dwarf metallicities can be used to guide planet searches and constrain planet formation models. However, the determination of metallicities of late-type stars is difficult because visible wavelength spectra of their cool atmospheres contain many overlapping absorption lines, preventing the measurement of equivalent widths. We present new methods, and improved calibrations of existing methods, to determine metallicities of late-K and M dwarfs from moderate resolution (1300 < R < 2000) visible and infrared spectra. We select a sample of 112 wide binary systems that contain a late-type companion to a solar-type primary star. Our sample includes 62 primary stars with previously published metallicities, as well as 50 stars with metallicities determined from our own observations. We use our sample to empirically determine which features in the spectrum of the companion are best correlated with the metallicity of the primary. We derive metallicity calibrations for different wavelength ranges, and show that it is possible to get metallicities reliable to < 0.10 dex using either visible, J, H, or K band spectra. Our calibrations are applicable to dwarfs with metallicities of -1.04 < [Fe/H]< +0.56 and spectral types from K7 to M5. Lastly, we use our sample of wide binaries to test and refine existing calibrations to determine M dwarf metallicities. We find that the zeta parameter, which measures the ratio of TiO can CaH bands, is correlated with [Fe/H] for super-solar metallicities, and zeta does not always correctly identify metal-poor M dwarfs. We also find that existing calibrations in the K and H band are quite reliable for stars with [Fe/H] > -0.5, but are less useful for more metal-poor stars.
description: 16 pages, 6 figures, two electronic tables. Published in the Astronomical Journal. July 2013 update: corrected a typo in the H2O-J band definition, clarified calibration assumes equivalent widths in Angstroms. May 2014 update: IDL program for calculating metallicities is now on github (https://github.com/awmann/metal)
ByzRev 03.2021.012: Franco Montanari (Hrsg.), History of Ancient Greek Scholarship.
Creators: name: Wöckener-Gade, Eva
Publisher: name: The Byzantine Review
Year: 2021

description: Franco Montanari (Hrsg.), History of Ancient Greek Scholarship. From the Beginnings to the End of the Byzantine Age. Leiden – Boston: Brill, 2020. viii, 709 S. – ISBN: 978-90-04-42740-2 (€ 75.00)
description: The Byzantine Review, Vol 3 (2021)
Testing Planck scale gravity with accelerators
Creators: name: Gharibyan, V.
Publisher: name: arXiv
Year: 2012
Subjects: subject: High Energy Physics - Phenomenology (hep-ph)
subject: High Energy Physics - Experiment (hep-ex)
subject: FOS: Physical sciences

description: Quantum or torsion gravity models predict unusual properties of space-time at very short distances. In particular, near the Planck length, around 1E-35 m, empty space may behave as a crystal, singly or doubly refractive. However, this hypothesis remains uncheckable for any direct measurement since the smallest distance accessible in experiment is about 1E-19 m at the LHC. Here I propose a laboratory test to measure the space refractivity and birefringence induced by gravity. A sensitivity from 1E-31m down to the Planck length could be reached at existent GeV and future TeV energy lepton accelerators using laser Compton scattering. There are already experimental hints for gravity signature at distances approaching the Planck length by 5-7 orders of magnitude, derived from SLC and HERA data.
description: 4 pages, 2 figures
Non-geometric tilt-to-length coupling in precision interferometry: mechanisms and analytical descriptions
Creators: name: Hartig, Marie-Sophie
name: Schuster, Sönke
name: Heinzel, Gerhard
name: Wanner, Gudrun
Publisher: name: arXiv
Year: 2022
Subjects: subject: Optics (physics.optics)
subject: Instrumentation and Methods for Astrophysics (astro-ph.IM)
subject: Instrumentation and Detectors (physics.ins-det)
subject: FOS: Physical sciences

description: This paper is the second in a set of two investigating tilt-to-length (TTL) coupling. TTL describes the cross-coupling of angular or translational jitter into an interferometric phase signal and is an important noise source in precision interferometers, including space gravitational wave detectors like LISA. We discussed in 10.1088/2040-8986/ac675e the TTL coupling effects originating from optical path length changes, i.e. geometric TTL coupling. Within this work, we focus on the wavefront and detector geometry dependent TTL coupling, called non-geometric TTL coupling, in the case of two interfering fundamental Gaussian beams. We characterise the coupling originating from the properties of the interfering beams, i.e. their absolute and relative angle at the detector, their relative offset and the individual beam parameters. Furthermore, we discuss the dependency of the TTL coupling on the geometry of the detecting photodiode. Wherever possible, we provide analytical expressions for the expected TTL coupling effects. We investigate the non-geometric coupling effects originating from beam walk due to the angular or translational jitter of a mirror or a receiving system. These effects are directly compared with the corresponding detected optical path length changes in 10.1088/2040-8986/ac675e. Both together provide the total interferometric readout. We discuss in which cases the geometric and non-geometric TTL effects cancel one-another. Additionally, we list linear TTL contributions that can be used to counteract other TTL effects. Altogether, our results provide key knowledge to minimise the total TTL coupling noise in experiments by design or realignment.
ByzRev 03.2021.018: Gioacchino Strano (ed.), Nicola di Corcyra. Versi giambici.
Creators: name: D'Aiuto, Francesco
Publisher: name: The Byzantine Review
Year: 2021

description: Gioacchino Strano (ed.), Nicola di Corcyra. Versi giambici. Introduzione, testo critico, traduzione e note di commento (Βυζαντινά Κείμενα και Μελέτες 65). Θεσσαλονίκη: Κέντρο Βυζαντινών Ερευνών 2020. 117 pp., 2 tavv. b/n fuori testo. -- ISBN: 978-960-7856-60-9
description: The Byzantine Review, Vol 3 (2021)
Pinching Azumaya algebras
Creators: name: Fischer, Johannes
Publisher: name: arXiv
Year: 2022
Subjects: subject: Algebraic Geometry (math.AG)
subject: FOS: Mathematics
subject: 14F22, 14F20, 16K50

description: We show, that for a morphism of schemes from X to Y, that is a finite modification in finitely many closed points, a cohomological Brauer class on Y is represented by an Azumaya algebra if its pullback to X is represented by an Azumaya algebra. Part of the proof uses an extension of a result by Ferrand, on pinching of finite locally free sheaves, to Azumaya algebras.
description: minor changes, to appear in J. Pure Appl. Algebra
Momentum-space instantons and maximally localized flat-band topological Hamiltonians
Creators: name: Jian, Chao-Ming
name: Gu, Zheng-Cheng
name: Qi, Xiao-Liang
Publisher: name: arXiv
Year: 2012
Subjects: subject: Strongly Correlated Electrons (cond-mat.str-el)
subject: FOS: Physical sciences

description: Recently, two-dimensional band insulators with a topologically nontrivial (almost) flat band has been studied extensively, which can realize integer and fractional quantum Hall effect in a system without an orbital magnetic field. Realizing a topological flat band generally requires longer range hoppings in a lattice Hamiltonian. It is natural to ask what is the minimal hopping range required.% for a topological flat-band Hamiltonian. In this paper, we prove that the mean hopping range of the flat-band Hamiltonian with Chern number $C_1$ and total number of bands $N$ has a universal lower bound of $\sqrt{4|C_1|/πN}$. Furthermore, for the Hamiltonians that reach this lower bound, the Bloch wavefunctions of the topological flat band are instanton solutions of a $CP(N-1)$ non-linear $σ$ model on the Brillouin zone torus, which are elliptic functions up to a normalization factor.
description: 3 pages, 1 figure
Existence of Ground State of an Electron in the BDF Approximation
Creators: name: Sok, Jérémy
Publisher: name: arXiv
Year: 2012
Subjects: subject: Mathematical Physics (math-ph)
subject: FOS: Physical sciences

description: The Bogoliubov-Dirac-Fock (BDF) model allows to describe relativistic electrons interacting with the Dirac sea. It can be seen as a mean-field approximation of Quantum Electro-dynamics (QED) where photons are neglected. This paper treats the case of an electron together with the Dirac sea in the absence of any external field. Such a system is described by its one-body density matrix, an infinite rank, self-adjoint operator which is a compact pertubation of the negative spectral projector of the free Dirac operator. The parameters of the model are the coupling constant $α>0$ and the ultraviolet cut-off $Λ>0$: we consider the subspace of squared integrable functions made of the functions whose Fourier transform vanishes outside the ball $B(0,\La)$. We prove the existence of minimizers of the BDF-energy under the charge constraint of one electron and no external field provided that $α,\La^{-1}$ and $α\llo$ are sufficiently small. The interpretation is the following: in this regime the electron creates a polarization in the Dirac vacuum which allows it to bind. We then study the non-relativistic limit of such a system in which the speed of light tends to infinity (or equivalently $α$ tends to zero) with $α\llo$ fixed: after rescaling the electronic solution tends to the Choquard-Pekar ground state.
description: RMP (2015) To appear
Real-time superresolution interferometric measurement enabled by structured nonlinear optics
Creators: name: Zhang, Xin-Yu
name: Wu, Hai-Jun
name: Yu, Bing-Shi
name: Rosales-Guzmán, Carmelo
name: Zhu, Zhi-Han
name: Hu, Xiao-Peng
name: Shi, Bao-Sen
name: Zhu, Shi-Ning
Publisher: name: arXiv
Year: 2022
Subjects: subject: Optics (physics.optics)
subject: FOS: Physical sciences

description: Optical interferometers are pillars of modern precision metrology, but their resolution is limited by the wavelength of the light source, which cannot be infinitely reduced. Magically, this limitation can be circumvented by using an entangled multiphoton source because interference produced by an N-photon amplitude features a reduced de Broglie wavelength λ/N. However, the extremely low efficiency in multiphoton state generation and coincidence counts actually negates the potential of using multiphoton states in practical measurements. Here, we demonstrate a novel interferometric technique based on structured nonlinear optics, i.e., parametric upconversion of a structured beam, capable of superresolution measurement in real time. The main principle relies in that the orbital angular momentum (OAM) state and associated intramodal phase within the structured beam are both continuously multiplied in cascading upconversion to mimic the superresolved phase evolution of a multiphoton amplitude. Owing to the use of bright sensing beams and OAM mode projection, up to a 12-photon de Broglie wavelength with almost perfect visibility is observed in real time and, importantly, by using only a low-cost detector. Our results open the door to real-time superresolution interferometric metrology and provide a promising way toward multiphoton superiority in practical applications.
What does  'transition' mean? : a qualitative analysis of reported transitions at OAR
Creators: name: Sen, Avery
Publisher: name: U.S. Department of Commerce, National Oceanic and Atmospheric Administration, Oceanic and Atmospheric Research, Office of Policy Planning and Evaluation
Year: 2015
Subjects: subject: United States. National Oceanic and Atmospheric Administration. Office of Oceanic and Atmospheric Research--Research--Transition periods--Management--Evaluation
subject: Research and development projects--United States--Evaluation
subject: Environmental sciences--Research--United States--Measurement

description: OAR recently completed an inventory of all research and development (R&D) that had successfully transitioned to applications between January 2013 and July 2014. A wide variety of activities were submitted by OAR Laboratory and Program Directors as examples of transition, but, when examined closely, many did not seem to be transitions at all. It became clear that there is a lack of shared understanding about what qualifies as a bona fide 'transition.' This analysis is intended to address the cultural challenge of transition by focusing on semantics: what we mean when we say 'transition.' It was conducted determine which reported transitions were consistent with the definition of transition in NOAA Administrative Order on Transitioning Research into Applications (NAO 216-105), and to describe in detail how that determination was made so that it can be reliably repeated, and so that OAR and NOAA leadership can manage transition activities with confidence.
Klein-Gordon particles in Gödel-type Som-Raychaudhuri cosmic string spacetime and the phenomenon of spacetime associated degeneracies
Creators: name: Mustafa, Omar
Publisher: name: arXiv
Year: 2022
Subjects: subject: General Relativity and Quantum Cosmology (gr-qc)
subject: Mathematical Physics (math-ph)
subject: Quantum Physics (quant-ph)
subject: FOS: Physical sciences

description: We argue that only exact, comprehensive, and explicit solutions for the fundamental models, the Klein-Gordon (KG) oscillators and the KG-Coulomb, would help to understand the effects of gravitational fields on the dynamics of such quantum mechanical systems. In the current methodical proposal, the effects of the gravitational fields generated by a Gödel-type Som-Raychaudhuri (SR) cosmic string spacetime on KG-oscillators (KG-particles in general) are studied and reported. In so doing, we revisit the KG-oscillators in a topologically trivial Gödel-type spacetime background and use textbook procedures to report its exact solution that covers even and odd parities. Next, we discuss the drawbacks associated with the power series expansion approach that implies the biconfluent Heun functions/polynomials solution. We, therefore, recollect the so called pseudo perturbative shifted L expansion technique (PSLET) as an alternative and more sophisticated method/technique. Illustrative examples are used: (i) a KG-oscillator in a topologically trivial Gödel-type spacetime, (ii) a quasi-free KG-oscillator in Gödel SR-type cosmic string spacetime, (iii) a KG-Coulombic particle in Gödel SR-type cosmic string spacetime at zero vorticity, and (iv) a massless KG-particle in Gödel SR-type cosmic string spacetime in a Cornell-type Lorentz scalar potential. The corresponding exact energies are obtained from the zeroth (leading) order correction of PSLET, where all higher order correction identically vanish. The comprehensive exactness of the reported solutions manifestly suggest degeneracies associated with spacetime (STAD) phenomenon.
description: 13 pages, no figures
Sims Characterisation Of Zno And Mgo Thin Films
Creators: name: Kumarappan Kumar
name: Casey, Patrick
name: Hughes, Greg
Publisher: name: Zenodo
Year: 2009
Subjects: ZnO
MgO
Wide Band gap Semiconductors
Metal Oxides
Materials Characterization
SIMS

description: Poster Presented in the BOC Gases Postgraduate Poster Competition,  held by School of Physical Sciences, Dublin City University in 2009.
CaST: A Toolchain for Creating and Characterizing Realistic Wireless Network Emulation Scenarios
Creators: name: Villa, Davide
name: Tehrani-Moayyed, Miead
name: Johari, Pedram
name: Basagni, Stefano
name: Melodia, Tommaso
Publisher: name: arXiv
Year: 2022
Subjects: subject: Networking and Internet Architecture (cs.NI)
subject: Signal Processing (eess.SP)
subject: FOS: Computer and information sciences
subject: FOS: Electrical engineering, electronic engineering, information engineering

description: Large-scale wireless testbeds are being increasingly used in developing and evaluating new solutions for next generation wireless networks. Among others, high-fidelity FPGA-based emulation platforms have unique capabilities for faithfully modeling real-world wireless environments in real-time and at scale, while guaranteeing repeatability. However, the reliability of the solutions tested on emulation platforms heavily depends on the precision of the emulation process, which is often overlooked. To address this unmet need in wireless network emulator-based experiments, in this paper we present CaST, a Channel emulation generator and Sounder Toolchain for creating and characterizing realistic wireless network scenarios with high accuracy. CaST consists of (i) a framework for creating mobile wireless scenarios from ray-tracing models for FPGA-based emulation platforms, and (ii) a containerized Software Defined Radio-based channel sounder to precisely characterize the emulated channels. We demonstrate the use of CaST by designing, deploying and validating multi-path mobile scenarios on Colosseum, the world's largest wireless network emulator. Results show that CaST achieves <= 20 ns accuracy in sounding Channel Impulse Response tap delays, and 0.5 dB accuracy in measuring tap gains.
description: 8 pages, 9 figures, 2 tables
Nanoscale Structural and Electronic Properties of Cellulose/Graphene Interfaces
Creators: name: Silvestre, Gustavo H.
name: de Lima, Felipe Crasto
name: Bernardes, Juliana S.
name: Fazzio, Adalberto
name: Miwa, Roberto H.
Publisher: name: arXiv
Year: 2022
Subjects: subject: Materials Science (cond-mat.mtrl-sci)
subject: FOS: Physical sciences

description: The development of electronic devices based on the functionalization of (nano)cellulose platforms relies upon an atomistic understanding of the structural, and electronic properties of the combined system, cellulose/functional element. In this work, we present a theoretical study of the nanocellulose/graphene interface (nCL/G) based on first-principles calculations. We find that the binding energies of both hydrophobic/G (nCL$^{\rm phob}$/G) and hydrophilic/G (nCL$^{\rm phil}$/G) interfaces are primarily dictated by the van der Waals interactions, and are comparable with that of their 2D interface counterparts. We verify that the energetic preference of nCL$^{\rm phob}$/G has been reinforced by the inclusion of an aqueous media via the implicit solvation model. Further structural characterization was carried out using a set of simulations of Carbon K-edge X-ray absorption spectra to identify and distinguish the key absorption features of the nCL$^{\rm phob}$/G and nCL$^{\rm phil}$/G interfaces. The electronic structure calculations reveal that the linear energy bands of graphene lie in the band gap of the nCL, sheet, while depletion/accumulation charge density regions are observed. We show that external agents, i.e. electric field and mechanical strain, allow for tunability of the Dirac cone and the charge density at the interface. The control/maintenance of the Dirac cone states in nCL/G is an important feature for the development of electronic devices based on cellulosic platforms.
Enabling Open Science: Wikidata For Research
Creators: name: Mietchen, Daniel
name: Hagedorn, Gregor
name: Willighagen, Egon
name: Rico, Mariano
name: Gomez-Perez, Asuncion
name: Aibar, Eduard
name: Rafes, Karima
name: Germain, Cécile
name: Dunning, Alastair
name: Pintscher, Lydia
name: Kinzler, Daniel
name: Anonymous
Publisher: name: Zenodo
Year: 2015
Subjects: VRE
Open Science
citizen science
cultural heritage
Responsible Research and Innovation
Wikidata

description: Wiki4R will create an innovative virtual research environment (VRE) for Open Science at scale, engaging both professional researchers and citizen data scientists in new and potentially transformative forms of collaboration. It is based on the realizations that (1) the structured parts of the Web itself can be regarded as a VRE, (2) such environments depend on communities, (3) closed environments are limited in their capacity to nurture thriving communities. Wiki4R will therefore integrate Wikidata, the multilingual semantic backbone behind Wikipedia, into existing research processes to enable transdisciplinary research and reduce fragmentation of research in and outside Europe. By establishing a central shared information node, research data can be linked and annotated into knowledge. Despite occasional uses of Wikipedia or Wikidata in research, significant barriers to broader adoption in the sciences or digital humanities exist, including lack of integration into existing research processes and inadequate handling of provenances. The proposed actions include providing best practices and tools for semantic mapping, adoption of citation and author identifiers, interoperability layers for integration with existing research environments, and the development of policies for information quality and interchange. The effectiveness of the actions will be tested in pilot use cases. Unforeseen barriers will be investigated and documented. We will promote the adoption of Wiki4R by making it easy to use and integrate, demonstrate the applicability in selected research domains, and provide diverse training opportunities. Wiki4R leverages the expertise gained in Europe through the Wikidata and DBpedia projects to further strengthen the established virtual community of 14000 people. As a result of increased interaction between professional science and citizens, it will provide an improved basis for Responsible Research and Innovation and Open Science in the European Research Area.
description: This proposal was created in response to the EU call "EINFRA-9-2015 e-Infrastructures for virtual research environments (VRE)" http://ec.europa.eu/research/participants/portal/desktop/en/opportunities/h2020/topics/2144-einfra-9-2015.html (it had a no-cache tag, so could not be archived).

The letters of support from the 17 associate partners have not been attached here, since most of them contained logos whose inclusion would have prevented the proposal from being available under a CC BY license.

At least for a while, the letters will remain available via https://drive.google.com/?usp=folder&authuser=0#folders/0ByQvcnWHnwgmT3dmZTVpNlBlZ3M .
Equivariant constrained Willmore tori in the 3-sphere
Creators: name: Heller, Lynn
Publisher: name: arXiv
Year: 2012
Subjects: subject: Differential Geometry (math.DG)
subject: FOS: Mathematics
subject: 53C42, 53A30, 53A05, 37K15

description: In this paper we study equivariant constrained Willmore tori in the 3-sphere. These tori admit a 1-parameter group of Möbius symmetries and are critical points of the Willmore energy under conformal variations. We show that the associated spectral curve of an equivariant torus is given by a double covering of $\mathbb C$ and classify equivariant constrained Willmore tori by the genus g of their spectral curve. In this case the spectral genus satisfies $g \leq 3.$
description: 24 pages
SurvSHAP(t): Time-dependent explanations of machine learning survival models
Creators: name: Krzyziński, Mateusz
name: Spytek, Mikołaj
name: Baniecki, Hubert
name: Biecek, Przemysław
Publisher: name: arXiv
Year: 2022
Subjects: subject: Machine Learning (cs.LG)
subject: Artificial Intelligence (cs.AI)
subject: Machine Learning (stat.ML)
subject: FOS: Computer and information sciences

description: Machine and deep learning survival models demonstrate similar or even improved time-to-event prediction capabilities compared to classical statistical learning methods yet are too complex to be interpreted by humans. Several model-agnostic explanations are available to overcome this issue; however, none directly explain the survival function prediction. In this paper, we introduce SurvSHAP(t), the first time-dependent explanation that allows for interpreting survival black-box models. It is based on SHapley Additive exPlanations with solid theoretical foundations and a broad adoption among machine learning practitioners. The proposed methods aim to enhance precision diagnostics and support domain experts in making decisions. Experiments on synthetic and medical data confirm that SurvSHAP(t) can detect variables with a time-dependent effect, and its aggregation is a better determinant of the importance of variables for a prediction than SurvLIME. SurvSHAP(t) is model-agnostic and can be applied to all models with functional output. We provide an accessible implementation of time-dependent explanations in Python at http://github.com/MI2DataLab/survshap.
A review of principal coastal economic sectors within the southeast United States and the U.S. Caribbean
Creators: name: Fleming, Chloe S.
name: Tonioli, Flávia Carvalho
name: Agar, Juan J.
Publisher: name: U.S. Department of Commerce, National Oceanic and Atmospheric Administration, National Marine Fisheries Service, Southeast Fisheries Science Center, Miami Laboratory
Year: 2014
Subjects: Coastal zone management--Economic aspects--Southern States--Statistics
Coastal zone management--Economic aspects--Gulf Coast (U.S.)--Statistics
Marine resources--Management--Economic aspects--Southern States--Statistics
Marine resources--Management--Economic aspects--Gulf Coast (U.S.)--Statistics

description: This report provides an overview of the key coastal economic sectors found within the southeast United States, including the Gulf of Mexico, southeast U.S. Atlantic coast and U.S. Caribbean. These regions share key coastal economic areas of interest, including oil and gas production, maritime transportation, tourism, and fisheries and aquaculture. The study found that the southeast region holds over 30% of the nation's population and employment opportunities, as well as generating roughly 30% of the nation's GDP and personal income. Oil production is the most valuable natural resource-based activity in the southeast generating $9.1 billion. Waterborne commerce and tourism are other major economic sectors. In 2012, over 52.2% of the nation's trade tonnage passed through southeast ports, and these ports were responsible for shipping over $3.8 trillion in exports and imports. Tourism generated $206.7 billion in tourism and travel related expenditures (23.3% of the nation’s total), $31.5 billion in taxes and supported 3 million jobs. Fisheries and aquaculture were found to play a significant role in providing food, income, employment and recreational opportunities. Local commercial fleets produced 18.4% of the nation’s landings and dockside revenues. Additionally, the southeast region was responsible for 45% of the nation's aquaculture production sales and held 52% of the nation’s aquaculture farms. The report concludes by highlighting the importance and heterogeneity of these sectors within the southeast region and the importance of considering tradeoffs when developing ecosystem based management plans.
Staggered Dynamics in Antiferromagnets by Collective Coordinates
Creators: name: Tveten, Erlend G.
name: Qaiumzadeh, Alireza
name: Tretiakov, O. A.
name: Brataas, Arne
Publisher: name: arXiv
Year: 2012
Subjects: subject: Mesoscale and Nanoscale Physics (cond-mat.mes-hall)
subject: FOS: Physical sciences

description: Antiferromagnets can be used to store and manipulate spin information, but the coupled dynamics of the staggered field and the magnetization are very complex. We present a theory which is conceptually much simpler and which uses collective coordinates to describe staggered field dynamics in antiferromagnetic textures. The theory includes effects from dissipation, external magnetic fields, as well as reactive and dissipative current-induced torques. We conclude that, at low frequencies and amplitudes, currents induce collective motion by means of dissipative rather than reactive torques. The dynamics of a one-dimensional domain wall, pinned at 90$^{\circ}$ at its ends, are described as a driven harmonic oscillator with a natural frequency inversely proportional to the length of the texture.
description: 4 pages, 2 figures