cometadata/datacite-rtg-text-other-reclassification-records huggingface dataset:
Non-Trivial Checks of Novel Consistency Relations
Creators: name: Berezhiani, Lasha
name: Khoury, Justin
name: Wang, Junpu
Publisher: name: arXiv
Year: 2014
Subjects: subject: High Energy Physics - Theory (hep-th)
subject: Cosmology and Nongalactic Astrophysics (astro-ph.CO)
subject: General Relativity and Quantum Cosmology (gr-qc)
subject: FOS: Physical sciences

description: Single-field perturbations satisfy an infinite number of consistency relations constraining the squeezed limit of correlation functions at each order in the soft momentum. These can be understood as Ward identities for an infinite set of residual global symmetries, or equivalently as Slavnov-Taylor identities for spatial diffeomorphisms. In this paper, we perform a number of novel, non-trivial checks of the identities in the context of slow-roll single field inflationary models with arbitrary sound speed. We focus for concreteness on identities involving 3-point functions with a soft external mode, and consider all possible scalar and tensor combinations for the hard-momentum modes. In all these cases, we check the consistency relations up to and including cubic order in the soft momentum. For this purpose, we compute for the first time the 3-point functions involving 2 scalars and 1 tensor, as well as 2 tensors and 1 scalar, for arbitrary sound speed.
description: 30 pages
NISQ-ready community detection based on separation-node identification
Creators: name: Stein, Jonas
name: Ott, Dominik
name: Nüßlein, Jonas
name: Bucher, David
name: Schoenfeld, Mirco
name: Feld, Sebastian
Publisher: name: arXiv
Year: 2022
Subjects: subject: Quantum Physics (quant-ph)
subject: Machine Learning (cs.LG)
subject: Social and Information Networks (cs.SI)
subject: Physics and Society (physics.soc-ph)
subject: FOS: Physical sciences
subject: FOS: Computer and information sciences

description: The analysis of network structure is essential to many scientific areas, ranging from biology to sociology. As the computational task of clustering these networks into partitions, i.e., solving the community detection problem, is generally NP-hard, heuristic solutions are indispensable. The exploration of expedient heuristics has led to the development of particularly promising approaches in the emerging technology of quantum computing. Motivated by the substantial hardware demands for all established quantum community detection approaches, we introduce a novel QUBO based approach that only needs number-of-nodes many qubits and is represented by a QUBO-matrix as sparse as the input graph's adjacency matrix. The substantial improvement on the sparsity of the QUBO-matrix, which is typically very dense in related work, is achieved through the novel concept of separation-nodes. Instead of assigning every node to a community directly, this approach relies on the identification of a separation-node set, which -- upon its removal from the graph -- yields a set of connected components, representing the core components of the communities. Employing a greedy heuristic to assign the nodes from the separation-node sets to the identified community cores, subsequent experimental results yield a proof of concept. This work hence displays a promising approach to NISQ ready quantum community detection, catalyzing the application of quantum computers for the network structure analysis of large scale, real world problem instances.
Сравнительная продуктивность иностранного и отечественных гибридов сахарной свёклы в стационарном опыте в 2020 году
Creators: name: Т.Н. Подвигина
name: Л.В. Александрова
name: О.А. Минакова
Publisher: name: Сахар
Year: 2020
Subjects: сахарная свёкла
гибрид
минеральные удобрения
навоз
урожайность
густота
болезни

description: В засушливых условиях 2020 г. уровень урожайности корнеплодов в звене с паром был в целом невысоким и составил 22,6–50,4 /га, наиболее продуктивными в этом звене были иностранный гибрид Митика и отечественный РМС 127 при внесении доз удобрений N90P90K90 + 25 т/га навоза, N135P135K135 + + 25 т/га навоза, N45P45K45 + 50 т/га навоза и N190P190K190. В звене с клевером было собрано 11,2–49,5 т/га корнеплодов, под влиянием доз N120P120K120 и N135P135K135 под сахарную свёклу лучшим по продуктивности и устойчивости к болезням в этом звене был отечественный гибрид РМС 120.
The Hurricane Sandy Place Report: Evacuation Decisions, Housing Issues and Sense of Community
Creators: name: Abramson, David M.
name: Van Alst, Donna
name: Merdjanoff, Alexis
name: Piltch-Loeb, Rachael
name: Beedasy, Jaishree
name: Findley, Patricia
name: Peek, Lori Ann
name: Mordy, Meghan
name: Moroso, Sandra
name: Ocasio, Kerrie
name: Park, Yoon Soo
name: Sury, Jonathan
name: Tobin-Gurley, Jennifer
Publisher: name: Columbia University
Year: 2015
Subjects: Public health
Hurricane Sandy (2012)
Natural disasters--Social aspects
Housing

description: Hurricane Sandy was one of the largest storms on record, sweeping through the eastern seaboard of the United States with a massive diameter twice the size of Hurricane Katrina. Although wind speeds did not match those of Katrina, the combination of high tide at landfall and the lunar phase resulted in exceptionally high storm surges. Catastrophic storms such as Hurricane Sandy can have devastating effects on many aspects of human life and the environment, undermining economic activity, crippling critical infrastructure, and disrupting hundreds of thousands of lives for weeks, months, or even years. The Sandy Child and Family Health (S-CAFH) Study was designed to describe and analyze the impacts of the storm on the residents of New Jersey, identifying those needs which emerged and those which are still pressing. The research team – a partnership of faculty and research staff from Rutgers University, New York University, Columbia University, and Colorado State University – randomly selected and surveyed 1,000 residents of New Jersey’s “Disaster Footprint,” representing the experiences of 1 million New Jersey residents living in or near those coastal areas of the state most directly exposed to the storm. The primary focus of this Briefing Report, the first in a series of four thematic reports, is to document the storm’s impact on PLACE in New Jersey residents’ lives, with a particular emphasis on Sandy’s effect on people’s homes and housing decisions.
Einige Worte über die Einführung der Grundrechte in Bayern; [1849]
Creators: name: (:Unav)
Publisher: name: Universitätsbibliothek der Ludwig-Maximilians-Universität München
Year: 2018

description: Kopftitel. - Nicht identisch mit BV041982972 (dort mit Beilagenvermerk, hier ohne)
Bedenken und Bemerkungen zum Entwurf einer Gewerbe-Ordnung für das deutsche Reich; [ca. 1848]
Creators: name: (:Unav)
Publisher: name: Universitätsbibliothek der Ludwig-Maximilians-Universität München
Year: 2018

description: Vorlageform des Erscheinungsvermerks: Druck der Dr. C. Wolf'schen Buchdruckerei
OPPORTUNITIES FOR IMPROVING THE THEORETICAL BASIS OF USING TESTOLOGY IN THE EDUCATIONAL SYSTEM
Creators: name: Khalikov, Farokhidin
Publisher: name: Zenodo
Year: 2023

description: In this article, it is necessary to take into account many factors and take into account the socio-pedagogical environment and conditions when evaluating the educational achievements of students. Today, the need to modernize pedagogical measures and introduce international programs in education is increasing. The main goal of international assessment programs is to provide feedback on how students apply the knowledge they learn at school in everyday life.
Guided Hybrid Quantization for Object detection in Multimodal Remote Sensing Imagery via One-to-one Self-teaching
Creators: name: Zhang, Jiaqing
name: Lei, Jie
name: Xie, Weiying
name: Li, Yunsong
name: Jia, Xiuping
Publisher: name: arXiv
Year: 2023
Subjects: subject: Computer Vision and Pattern Recognition (cs.CV)
subject: FOS: Computer and information sciences

description: Considering the computation complexity, we propose a Guided Hybrid Quantization with One-to-one Self-Teaching (GHOST}) framework. More concretely, we first design a structure called guided quantization self-distillation (GQSD), which is an innovative idea for realizing lightweight through the synergy of quantization and distillation. The training process of the quantization model is guided by its full-precision model, which is time-saving and cost-saving without preparing a huge pre-trained model in advance. Second, we put forward a hybrid quantization (HQ) module to obtain the optimal bit width automatically under a constrained condition where a threshold for distribution distance between the center and samples is applied in the weight value search space. Third, in order to improve information transformation, we propose a one-to-one self-teaching (OST) module to give the student network a ability of self-judgment. A switch control machine (SCM) builds a bridge between the student network and teacher network in the same location to help the teacher to reduce wrong guidance and impart vital knowledge to the student. This distillation method allows a model to learn from itself and gain substantial improvement without any additional supervision. Extensive experiments on a multimodal dataset (VEDAI) and single-modality datasets (DOTA, NWPU, and DIOR) show that object detection based on GHOST outperforms the existing detectors. The tiny parameters (<9.7 MB) and Bit-Operations (BOPs) (<2158 G) compared with any remote sensing-based, lightweight or distillation-based algorithms demonstrate the superiority in the lightweight design domain. Our code and model will be released at https://github.com/icey-zhang/GHOST.
description: This article has been delivered to TRGS and is under review
Hydrodynamic model of heavy-ion collisions with low momentum components
Creators: name: Monnai, Akihiko
Publisher: name: arXiv
Year: 2023
Subjects: subject: Nuclear Theory (nucl-th)
subject: High Energy Physics - Phenomenology (hep-ph)
subject: Nuclear Experiment (nucl-ex)
subject: FOS: Physical sciences

description: Relativistic heavy-ion collisions suggest that low momentum regions of the observed particle spectra are thermal and hydrodynamic, while medium-high momentum regions are non-thermal and perturbative. In this study, I construct a hydrodynamic model of heavy-ion collisions by cutting off the medium-high momentum contributions and investigate the phenomenological consequences. Numerical simulations indicate that the temperature of the quark matter can be higher at earlier times owing to the modification of the equation of state. It is also suggested that direct photon elliptic flow can be sensitive to the momentum dependence of thermalization.
description: 17 pages, 5 figures; revised version to appear in Journal of Physics G: Nuclear and Particle Physics
The decay $A^0\to h^0 Z^{(*)}$ in the inverted hierarchy scenario and its detection prospects at the Large Hadron Collider
Creators: name: Akeroyd, A. G.
name: Alanazi, S.
name: Moretti, Stefano
Publisher: name: arXiv
Year: 2023
Subjects: subject: High Energy Physics - Phenomenology (hep-ph)
subject: FOS: Physical sciences

description: Searches are being carried out at the Large Hadron Collider (LHC) for the decay of the CP-odd scalar ($A^0$) in Two-Higgs-Doublet Models (2HDMs) with Natural Flavour Conservation (NFC) in the channel $A^0\to h^0 Z$ (with $m_{h^0}=125$ GeV and $Z$ on-shell). In the absence of any signal, limits on the parameter space of $[\tanβ, \cos(β-α), m_{A^0}]$ in each 2HDM are derived for $m_{A^0} > 225$ GeV. In this work we consider the scenario of inverted hierarchy with $m_{h^0}<125$ GeV and $m_{H^0}=125$ GeV in which the decay $A^0\to h^0 Z^{(*)}$ (i.e. including the case of an off-shell $Z$) can have a large branching ratio in the 2HDM (Type I) for $m_{A^0}<225$ GeV. We calculate the signal cross section $σ(gg\to A^0)\times {\rm BR}(A^0\to h^0Z^{(*)})\times {\rm BR}(h^0\to b\overline b)$ in the 2HDM (Type I) with NFC and compare its magnitude with the cross section for the case of normal hierarchy ($m_{h^0}=125$ GeV) that is currently being searched for at the LHC. For the experimentally unexplored region $m_{A^0} < 225$ GeV it is shown that the above cross section for signal events in the scenario of inverted hierarchy can be of the order of a few picobarns. Such sizeable cross sections are several orders of magnitude larger than the cross sections for the case of normal hierarchy, thus motivating an extension of the ongoing searches for $A^0\to h^0 Z^{(*)}$ to probe the scenario of inverted hierarchy.
description: 35 pages, 8 figures
title: Bekanntmachung die Erhebung der Einkommensteuer für das Jahr 1848 betreffend; [1848]
title: [Frankfurt a. M., den 30. December 1848]
titleType: Subtitle
Creators: name: (:Unav)
Publisher: name: Universitätsbibliothek der Ludwig-Maximilians-Universität München
Year: 2018

description: Kopftitel. - Enth. außerdem: Einkommensteuer-Tabelle der für das Jahr 1848 zu zahlenden Einkommensteuer
Wiener measure for Heisenberg group
Creators: name: Liu, Heping
name: Wang, Yingzhan
Publisher: name: arXiv
Year: 2013
Subjects: subject: Functional Analysis (math.FA)
subject: FOS: Mathematics
subject: 28C20, 06B15

description: In this paper, we build Wiener measure for the path space on the Heisenberg group by using of the heat kernel corresponding to the sub-Laplacian and give the definition of the Wiener integral. Then we give the Feynman-Kac formula.
description: 14 pages
Geometry of Quantum Computation with Qutrits
Creators: name: Li, Bin
name: Yu, Zu-Huan
name: Fei, Shao-Ming
Publisher: name: arXiv
Year: 2013
Subjects: subject: Quantum Physics (quant-ph)
subject: FOS: Physical sciences

description: Determining the quantum circuit complexity of a unitary operation is an important problem in quantum computation. By using the mathematical techniques of Riemannian geometry, we investigate the efficient quantum circuits in quantum computation with $n$ qutrits. We show that the optimal quantum circuits are essentially equivalent to the shortest path between two points in a certain curved geometry of $SU(3^n)$. As an example, three-qutrit systems are investigated in detail.
description: 14 pages
Large $N$ analytical functional bootstrap I: 1D CFTs and total positivity
Creators: name: Li, Zhijin
Publisher: name: arXiv
Year: 2023
Subjects: subject: High Energy Physics - Theory (hep-th)
subject: FOS: Physical sciences

description: We initiate the analytical functional bootstrap study of conformal field theories with large $N$ limits. In this first paper we particularly focus on the 1D $O(N)$ vector bootstrap. We obtain a remarkably simple bootstrap equation from the $O(N)$ vector crossing equations in the large $N$ limit. The bootstrap bound is saturated by the generalized free field theory. We study the analytical extremal functionals of this crossing equation, for which the total positivity of the $SL(2,\mathbb{R})$ conformal block plays a critical role. We prove the $SL(2,\mathbb{R})$ conformal block is totally positive for large scaling dimension $Δ$ and show that the total positivity is violated below a critical value $Δ_{\textrm{TP}}^*\approx 0.32315626$. The conformal block forms a surprisingly sophisticated mathematical structure, which for instance can violate total positivity at the order $10^{-5654}$ for a normal value $Δ=0.1627$! We construct a series of analytical functionals $\{α_M\}$ which satisfy the bootstrap positive conditions up to a range $Δ\leqslant Λ_M$. The functionals $\{α_M\}$ have a trivial large $M$ limit. Surprisingly, due to total positivity, they can approach the large $M$ limit in a way consistent with the bootstrap positive conditions for arbitrarily high $Λ_M$, therefore proving the bootstrap bound analytically. Our result provides a concrete example to illustrate how the analytical properties of the conformal block lead to nontrivial bootstrap bounds. We expect this work paves the way for large $N$ analytical functional bootstrap in higher dimensions.
description: v1: 48 pages, 9 figures; v2: refs added, typos corrected, added an estimation of the critical value for total positivity
Super-Sample CMB Lensing
Creators: name: Manzotti, Alessandro
name: Hu, Wayne
name: Benoit-Lévy, Aurélien
Publisher: name: arXiv
Year: 2014
Subjects: subject: Cosmology and Nongalactic Astrophysics (astro-ph.CO)
subject: FOS: Physical sciences

description: Lensing of the CMB by modes that are larger than the size of the survey dilates intrinsic scales in the temperature and polarization fields and coherently shifts their observed power spectra with respect to the ensemble or all-sky mean. The effect can be simply encapsulated as a contribution to the power spectrum covariance matrix in accordance with the lensing trispectrum or as an additional parameter, the mean convergence in the field, for parameter estimation. It should be included for upcoming surveys that precisely measure acoustic polarization features deep into the damping tail at multipoles of $\ell \gtrsim 1500$ with less than $10\%$ of sky. Its omission may lead to seemingly conflicting values for the angular scale of the sound horizon which may then provide erroneous cosmological parameters when compared to baryon acoustic oscillation measurements.
description: 6 pages, 2 figures
Quantum Energy Inequalities along stationary worldlines
Creators: name: Fewster, Christopher J.
name: Thompson, Jacob
Publisher: name: arXiv
Year: 2023
Subjects: subject: High Energy Physics - Theory (hep-th)
subject: General Relativity and Quantum Cosmology (gr-qc)
subject: FOS: Physical sciences

description: Quantum energy inequalities (QEIs) are lower bounds on the averaged energy density of a quantum field. They have been proved for various field theories in general curved spacetimes but the explicit lower bound is not easily calculated in closed form. In this paper we study QEIs for the massless minimally coupled scalar field in four-dimensional Minkowski spacetime along stationary worldlines - curves whose velocity evolves under a 1-parameter Lorentz subgroup -- and find closed expressions for the QEI bound, in terms of curvature invariants of the worldline. Our general results are illustrated by specific computations for the six protoypical stationary worldlines. When the averaging period is taken to infinity, the QEI bound is consistent with a constant energy density along the worldline. For inertial and uniformly linearly accelerated worldlines, this constant value is attained by the Minkowski and Rindler vacuums respectively. It is an open question as to whether the bounds for other stationary worldlines are attained by other states of interest.
description: 27 pages, 1 figure. v2 29 pages, 1 figure - additional commentary and references added. Final version to appear in Class Q Grav
The Hurricane Sandy Person Report: Disaster Exposure, Health Impacts, Economic Burden, and Social Well-Being
Creators: name: Abramson, David M.
name: Van Alst, Donna
name: Merdjanoff, Alexis
name: Piltch-Loeb, Rachael
name: Beedasy, Jaishree
name: Findley, Patricia
name: Peek, Lori Ann
name: Mordy, Meghan
name: Moroso, Sandra
name: Ocasio, Kerrie
name: Park, Yoon Soo
name: Sury, Jonathan
name: Tobin-Gurley, Jennifer
Publisher: name: Columbia University
Year: 2015
Subjects: Hurricane Sandy (2012)
Disaster victims
Natural disasters--Social aspects
Natural disasters--Psychological aspects
Natural disasters--Health aspects

description: The impact a disaster has on the health of a population can be described as having a “dose-response” relationship: the larger the “dose” of the disaster, the greater the health impact or “response” among those individuals and communities exposed. This PERSON Briefing Report describes the impact of Hurricane Sandy (the dose) on the health and well-being of adults and children exposed to the storm (the response). Data for the report are drawn from the baseline survey of the Sandy Child and Family Health (S-CAFH) Study, an observational cohort study of nearly 1,000 randomly-selected New Jersey residents who were living in areas of the state exposed to the storm in 2012. Participants in the study represent over 1 million people living in Sandy’s “Disaster Footprint,” the hurricane-exposed portions of the state. This report describes and examines several critical aspects of individual health and well-being that may be associated with the storm, including: 1. Physical health of adults; 2. Psychological and emotional health of adults; 3. Social and economic health of adults; 4. Health and well-being of children; and 5. The association between disaster exposure and individual outcomes.
Deep Learning for Mean Field Games with non-separable Hamiltonians
Creators: name: Assouli, Mouhcine
name: Missaoui, Badr
Publisher: name: arXiv
Year: 2023
Subjects: subject: Machine Learning (cs.LG)
subject: Numerical Analysis (math.NA)
subject: Analysis of PDEs (math.AP)
subject: FOS: Computer and information sciences
subject: FOS: Mathematics

description: This paper introduces a new method based on Deep Galerkin Methods (DGMs) for solving high-dimensional stochastic Mean Field Games (MFGs). We achieve this by using two neural networks to approximate the unknown solutions of the MFG system and forward-backward conditions. Our method is efficient, even with a small number of iterations, and is capable of handling up to 300 dimensions with a single layer, which makes it faster than other approaches. In contrast, methods based on Generative Adversarial Networks (GANs) cannot solve MFGs with non-separable Hamiltonians. We demonstrate the effectiveness of our approach by applying it to a traffic flow problem, which was previously solved using the Newton iteration method only in the deterministic case. We compare the results of our method to analytical solutions and previous approaches, showing its efficiency. We also prove the convergence of our neural network approximation with a single hidden layer using the universal approximation theorem.
THE ORIGINALITY OF FAULKNER'S METHOD OF ARTISTIC ASSIMILATION OF REALITY
Creators: name: Murodullayev, Jasurbek
Publisher: name: Zenodo
Year: 2023

description: In this article, we try to trace how Faulkner's contradictory worldview ideas about man, society, history and time reflected in the interpretation of artistic time in his works and related aspects of the typology of images, composition, form of narration, determining the nature of the writer's creative heritage.
title: An Herrn Dr. Josef Edlen von Würth, Abgeordneten zur deutschen Nationalversammlung in Frankfurt; [1848]
title: Wien, 16. Dezember 1848
titleType: Subtitle
Creators: name: Würth, Josef ¬von
Publisher: name: Universitätsbibliothek der Ludwig-Maximilians-Universität München
Year: 2018

description: Kopftitel
Runaway signals: Exaggerated displays of commitment may result from second-order signaling
Creators: name: Lie-Panis, Julien
name: Dessalles, Jean-Louis
Publisher: name: arXiv
Year: 2023
Subjects: subject: Populations and Evolution (q-bio.PE)
subject: FOS: Biological sciences

description: To demonstrate their commitment, for instance during wartime, members of a group will sometimes all engage in the same ruinous display. Such uniform, high-cost signals are hard to reconcile with standard models of signaling. For signals to be stable, they should honestly inform their audience; yet, uniform signals are trivially uninformative. To explain this phenomenon, we design a simple model, which we call the signal runaway game. In this game, senders can express outrage at non-senders. Outrage functions as a second-order signal. By expressing outrage at non-senders, senders draw attention to their own signal, and benefit from its increased visibility. Using our model and a simulation, we show that outrage can stabilize uniform signals, and can lead signal costs to run away. Second-order signaling may explain why groups sometimes demand displays of commitment from all their members, and why these displays can entail extreme costs.
description: 15 pages, 4 figures. Supplementary Information: 20 pages, 7 figures More illustrations on this Website: https://evolife.telecom-paris.fr/outrage
Is $d^*(2380)$ a compact hexaquark state?
Creators: name: Pan, ManYing
name: Zhu, Xinmei
name: Ping, Jialun
Publisher: name: arXiv
Year: 2023
Subjects: subject: High Energy Physics - Phenomenology (hep-ph)
subject: FOS: Physical sciences

description: The most fascinating dibaryon in the non-strange quark sector is $d^*(2380)$, which was reported by WASA-at-COSY Collaboration and confirmed by A2@MAMI Collaboration. The reported mass and width are $M\approx2.37$ GeV, $Γ\approx70$ MeV and the quantum numbers $IJ^P=03^+$. The structure of $d^*(2380)$ is still in controversy. In the present calculation, the powerful method in few-body system, Gaussian expansion method is employed to explore the structure of $d^*(2380)$ in the framework of constituent quark models without assuming the presupposed structure. The results show that the radius of $d^*(2380)$ is around 0.7 fm, a very compact object. Because of the compact structure, the color singlet-singlet component has a large overlap with the color octet-octet one, two colorless, large overlapped $Δ$s dominate the state is possible.
description: 7 pages, 8 tables
Possible imprints of cosmic strings in the shadows of galactic black holes
Creators: name: Tinchev, Vassil K.
name: Yazadjiev, Stoytcho S.
Publisher: name: arXiv
Year: 2013
Subjects: subject: General Relativity and Quantum Cosmology (gr-qc)
subject: FOS: Physical sciences

description: We examine the shadow cast by a Kerr black hole pierced by a cosmic string. The observable images depend not only on the black hole spin parameter and the angle of inclination, but also on the deficit angle yielded by the cosmic string. The dependence of the observable characteristics of the shadow on the deficit angle is explored. The imprints in the black hole shadow left by the presence of a cosmic string can serve as a method for observational detection of such strings.
description: 13 pages, 7 figures;v2 references added
title: Children and young people in care until age 26 : a must for improved outcomes
Creators: name: Dunlop, Duncan
Publisher: name: Strathprints - University of Strathclyde
Year: 2013

description: Care Leavers have the worst outcomes in our society across most social well-being indicators. This is even more shocking as they are as physically and mentally capable as any other Scot. The Children and Young People Bill1 is an opportunity that can set the legislative framework to address these disparities in outcomes. Towards this end Who Cares? Scotland is leading a campaign to continue to care for our Looked After population until they are 26.The prerequisite for this is that stable loving relationships, which are available for as long as is necessary are the best support for enabling young people to thrive in adulthood. All too often young people are leaving care and supportive trusting relationships too early without the option of staying with or returning to the support those relationships give them. This article explores this fundamental shift in how we perceive and deliver after care more detail.
1+1D Hadrons Minimize their Biparton Renyi Free Energy
Creators: name: Asadi, Pouya
name: Vaidya, Varun
Publisher: name: arXiv
Year: 2023
Subjects: subject: High Energy Physics - Theory (hep-th)
subject: High Energy Physics - Phenomenology (hep-ph)
subject: Nuclear Theory (nucl-th)
subject: Quantum Physics (quant-ph)
subject: FOS: Physical sciences

description: We use a variational method to calculate the spectrum and the parton distribution function of ground state hadrons of various gauge theories in 1+1 dimensions. The template functions in our method minimize a free energy functional defined as a combination of free valence partons' kinetic energy on the lightcone and the Renyi entanglement entropy of biparton subsystems. Our results show that hadrons in these theories minimize the proposed free energy. The success of this technique motivates applying it to confining gauge theories in higher dimensions.
description: 5 two-column pages, 5 figures
Dislocation-induced structural and luminescence degradation in InAs quantum dot emitters on silicon
Creators: name: Hughes, Eamonn T.
name: Kusch, Gunnar
name: Selvidge, Jennifer
name: Bonef, Bastien
name: Norman, Justin
name: Shang, Chen
name: Bowers, John E.
name: Oliver, Rachel A.
name: Mukherjee, Kunal
Publisher: name: arXiv
Year: 2023
Subjects: subject: Mesoscale and Nanoscale Physics (cond-mat.mes-hall)
subject: Materials Science (cond-mat.mtrl-sci)
subject: FOS: Physical sciences

description: We probe the extent to which dislocations reduce carrier lifetimes and alter luminescence and growth morphology in InAs quantum dots (QD) grown on silicon. These heterostructures are key ingredients to achieving a highly reliable monolithically integrated light source on silicon necessary for photonic integrated circuits. We find up to 20-30% shorter carrier lifetimes at spatially resolved individual dislocations from both the QD ground and excited states at room temperature using time-resolved cathodoluminescence spectroscopy. These lifetimes are consistent with differences in the intensity measured under steady-state excitation suggesting that trap-assisted recombination limits the minority carrier lifetime, even away from dislocations. Our techniques also reveal the dramatic growth of misfit dislocations in these structures under carrier injection fueled by recombination-enhanced dislocation glide and III-V/Si residual strain. Beyond these direct effects of increased nonradiative recombination, we find the long-range strain field of misfit dislocations deeper in the defect filter layers employed during III-V/Si growth alter the QD growth environment and introduce a crosshatch-like variation in the QD emission color and intensity when the filter layer is positioned close to the QD emitter layer. Sessile threading dislocations generate even more egregious hillock defects that also reduce emission intensities by altering layer thicknesses, as measured by transmission electron microscopy and atom probe tomography. Our work presents a more complete picture of the impacts of dislocations relevant for the development of light sources for scalable silicon photonic integrated circuits.
description: 15 pages, 6 figures
Guiding Designs of Self-Organizing Swarms: Interactive and Automated Approaches
Creators: name: Sayama, Hiroki
Publisher: name: arXiv
Year: 2013
Subjects: subject: Neural and Evolutionary Computing (cs.NE)
subject: Adaptation and Self-Organizing Systems (nlin.AO)
subject: FOS: Computer and information sciences
subject: FOS: Physical sciences

description: Self-organization of heterogeneous particle swarms is rich in its dynamics but hard to design in a traditional top-down manner, especially when many types of kinetically distinct particles are involved. In this chapter, we discuss how we have been addressing this problem by (1) utilizing and enhancing interactive evolutionary design methods and (2) realizing spontaneous evolution of self organizing swarms within an artificial ecosystem.
description: 23 pages, 16 figures, 3 tables
Subwavelength plasmonic chain for magneto-optics enhancement
Creators: name: Baranov, D. G.
name: Vinogradov, A. P.
name: Lisyansky, A. A.
Publisher: name: arXiv
Year: 2013
Subjects: subject: Mesoscale and Nanoscale Physics (cond-mat.mes-hall)
subject: Optics (physics.optics)
subject: FOS: Physical sciences

description: We study the enhancement of the magneto-optical effect in subdiffraction plasmonic chains. We show that in a periodic chain of the plasmonic nanoparticles embedded in a magneto-optical medium, propagation of a guided mode is accompanied by rotation of electrical dipoles (the Faraday effect). The angle of rotation per 1 μm is two orders of magnitude greater than that in the same bulk magneto-optical medium. We also demonstrate that the effect of Ohmic losses can be significantly reduced by using a gain-assisted chain composed of active core-shell nanoparticles (spasers). The dipole mode in such an array of magneto-optical spasers exhibits high values of the Faraday rotation and propagation length.
ALGORITHM FOR CHOOSING THE OPTIMAL OPTION FOR ENDOPROSTHETICS FOR DYSPLASTIC COXARTHROSIS.
Creators: name: Irismetov, M.E.
name: Khakimov, A.D.
Publisher: name: Zenodo
Year: 2023

description: The most accurate installation of endoprosthesis components with orientation to the anatomical axis of the limb, which can eliminate during endoprosthetics coxavar or coxavalga with full compensation of ante- or retroversion angles, and reduction to the correct rotation angle, is the main and most difficult task of preoperative planning [1-5].
Uncountably many cases of Filippov's sewed focus
Creators: name: Glendinning, Paul
name: Hogan, S. John
name: Homer, Martin
name: Jeffrey, Mike R.
name: Szalai, Robert
Publisher: name: arXiv
Year: 2023
Subjects: subject: Dynamical Systems (math.DS)
subject: FOS: Mathematics
subject: 34A34 (Primary) 34C99 (Secondary)

description: The sewed focus is one of the singularities of planar piecewise smooth dynamical systems. Defined by Filippov in his book 'Differential Equations with Discontinuous Righthand Sides' (Kluwer, 1988), it consists of two invisible tangencies either side of the switching manifold. In the case of analytic focus-like behaviour, Filippov showed that the approach to the singularity is in infinite time. For the case of non-analytic focus-like behaviour, we show that the approach to the singularity can be in finite time. For the non-analytic sewed centre-focus, we show that there are uncountably many different topological types of local dynamics, including cases with infinitely many stable periodic orbits, and show how to create systems with periodic orbits intersecting any bounded symmetric closed set.
description: 17 pages, 3 figures
The generalized Clapeyron equation and its application to confined ice growth
Creators: name: Style, Robert W.
name: Gerber, Dominic
name: Rempel, Alan W.
name: Dufresne, Eric R.
Publisher: name: arXiv
Year: 2023
Subjects: subject: Soft Condensed Matter (cond-mat.soft)
subject: Geophysics (physics.geo-ph)
subject: FOS: Physical sciences

description: Most theoretical descriptions of stresses induced by freezing are rooted in the (generalized) Clapeyron equation, which predicts the pressure that a solid can exert as it cools below its melting temperature. This equation is central for topics ranging beyond glaciology to geomorphology, civil engineering, food storage, and cryopreservation. However, it has inherent limitations, requiring isotropic solid stresses and conditions near bulk equilibrium. Here, we examine when the Clapeyron equation is applicable by providing a rigorous derivation that details all assumptions. We demonstrate the natural extension for anisotropic stress states, and we show how the temperature and pressure ranges for validity depend on well-defined material properties. Finally, we demonstrate how the range of applicability of the (linear) Clapeyron equation can be extended by adding higher-order terms, yielding results that are in good agreement with experimental data for the pressure melting of ice.
description: 2 Figures
Antrag des Prälaten Moser, Mitglieds der württembergischen Kammer der Abgeordneten, betreffend den Beschluß der deutschen Reichsversammlung in Frankfurt am Main, vom 26. September 1848, über das Recht der Gemeinden, ihre Volksschullehrer selbst zu wählen; [1848]
Creators: name: Moser, Christian Gottlob
Publisher: name: Universitätsbibliothek der Ludwig-Maximilians-Universität München
Year: 2018

description: Kopftitel
Constraining study of circular orbits and accretion disk around nonlinear electrodynamics black hole
Creators: name: Ditta, A.
name: Mustafa, G.
name: Abbas, G.
name: Atamurotov, Farruh
name: Jusufi, Kimet
Publisher: name: arXiv
Year: 2023
Subjects: subject: General Relativity and Quantum Cosmology (gr-qc)
subject: FOS: Physical sciences

description: The very latest observation of $M87$ supermassive black hole (BH) by the Event Horizon Telescope (EHT) provides the accretion onto BHs is an interesting study in the theory of gravity. We study the geodesics structure and accretion near a nonlinear electrodynamics BH in strong and weak field approximations. These approximations provide the disc-like structure under the geodesic motion and accretion around the BH. Near the equatorial plane, we provide some new reasons to make circular orbits and accretion of test particles around the BH. Then we investigate perturbations, the critical speed of the fluid and the mass accretion rate of particles around the central object. The physical validity of this study shows that the parameter $β$ and $Q$ play an important role in the circular orbits and the mass accretion rate in strong and weak field approximations.
description: 22 pages, 13 figures
Measuring mass-loss rates and constraining shock physics using X-ray line profiles of O stars from the Chandra archive
Creators: name: Cohen, David H.
name: Wollman, Emma E.
name: Leutenegger, Maurice A.
name: Sundqvist, Jon O.
name: Fullerton, Alex W.
name: Zsargo, Janos
name: Owocki, Stanley P.
Publisher: name: arXiv
Year: 2014
Subjects: subject: Solar and Stellar Astrophysics (astro-ph.SR)
subject: High Energy Astrophysical Phenomena (astro-ph.HE)
subject: Instrumentation and Methods for Astrophysics (astro-ph.IM)
subject: FOS: Physical sciences

description: We quantitatively investigate the extent of wind absorption signatures in the X-ray grating spectra of all non-magnetic, effectively single O stars in the Chandra archive via line profile fitting. Under the usual assumption of a spherically symmetric wind with embedded shocks, we confirm previous claims that some objects show little or no wind absorption. However, many other objects do show asymmetric and blue shifted line profiles, indicative of wind absorption. For these stars, we are able to derive wind mass-loss rates from the ensemble of line profiles, and find values lower by an average factor of 3 than those predicted by current theoretical models, and consistent with H-alpha if clumping factors of f_cl ~ 20 are assumed. The same profile fitting indicates an onset radius of X-rays typically at r ~ 1.5 R_star, and terminal velocities for the X-ray emitting wind component that are consistent with that of the bulk wind. We explore the likelihood that the stars in the sample that do not show significant wind absorption signatures in their line profiles have at least some X-ray emission that arises from colliding wind shocks with a close binary companion. The one clear exception is zeta Oph, a weak-wind star that appears to simply have a very low mass-loss rate. We also reanalyse the results from the canonical O supergiant zeta Pup, using a solar-metallicity wind opacity model and find Mdot = 1.8 \times 10^{-6} M_sun/yr, consistent with recent multi-wavelength determinations.
description: 18 pages; 8 figures; 4 tables; Monthly Notices of the Royal Astronomical Society, in press
title: Der Alte von Turnberg oder der Prophet und seine Nachtmütze; [ca. 1848]
title: eine rührende Geschichte aus jüngster Zeit
titleType: Subtitle
Creators: name: (:Unav)
Publisher: name: Universitätsbibliothek der Ludwig-Maximilians-Universität München
Year: 2018

description: Kopftitel. - In Fraktur. - Erscheinungsort u. Verlag ermittelt
The birth of a quasiparticle in Si observed in time-frequency space
Creators: name: Hase, Muneaki
name: Kitajima, Masahiro
name: Constantinescu, Anca Monia
name: Petek, Hrvoje
Publisher: name: arXiv
Year: 2013
Subjects: subject: Materials Science (cond-mat.mtrl-sci)
subject: Mesoscale and Nanoscale Physics (cond-mat.mes-hall)
subject: Quantum Physics (quant-ph)
subject: FOS: Physical sciences

description: The concept of quasiparticles in solid-state physics is an extremely powerful way to describe complex many-body phenomena in terms of single particle excitations. Introducing a simple particle such as electron, e, hole, h, or a phonon, p, deforms a many-body system through interaction with other particles. We say the added particle is dressed or renormalized by a self-energy cloud that describes the response of the many-body system forming a new entity, the quasiparticle. With ultrafast laser techniques we can impulsively generate bare particles and observe their dressing by the many-body interactions, that is quasiparticle formation, on the time and energy scales governed by the Heisenberg uncertainty principle. Here we present the coherent response of Si to excitation with a 10 femtosecond (10-14 s) laser pulse. The optical pulse interacts with the sample via the complex second-order nonlinear susceptibility to generate a force on the lattice driving coherent phonon excitation. Transforming the transient reflectivity signal into frequency-time space by wavelet transform reveals interference effects leading to the coherent phonon generation and subsequent dressing of the phonon by electron-hole, e-h, pair excitations.
description: 14 pages, 3 figures
Tomato seed value chain analysis and seed conditioning among seed companies in Uganda
Creators: name: Tusiime, Sharon M.
name: Nonneck, Gail R.
name: Jensen, Helen H.
name: Tusiime, Sharon M.
name: Nonneck, Gail R.
name: Jensen, Helen H.
Publisher: name: Unknown
Year: 2020
Subjects: subject: Crop Production/Industries
subject: tomato seed value chain
subject: value chain analysis
subject: seed conditioning
subject: Uganda

description: Tomatoes increase nutritional food security and income among Ugandan smallholder farmers who have limited access to high quality seed. The objective of this study was to analyze the current tomato seed value chain for Uganda. Survey responses determined roles of key participants, including Ministry of Agriculture, Animal Industry and Fisheries (MAAIF) for regulation and certification; National Agricultural Research Organization for breeding cultivars and seed multiplication; Makerere University for education and research; commercial seed companies for seed importation and conditioning; seed distributors for sales; and smallholder farmers as savers and end users of seed. Challenges included an inefficient domestic seed distribution system, technical constraints in seed production and conditioning by seed companies, inadequate networks and communication among the seed industry’s key participants, and partial regulation of the seed industry. Seed companies played a key role in seed conditioning processes. Companies imported all tomato seeds into Uganda and stated germination as their primary goal for quality. Challenges for seed companies included assistance from MAAIF to regulate and certify seed and access to improved technologies. Attaining high quality seed by commercial Uganda-parent companies will require additional investment and training of seed technologists for domestic testing and seed quality assurance.
Lagrangian reduction and wave mean flow interaction
Creators: name: Holm, Darryl D.
name: Hu, Ruiao
name: Street, Oliver D.
Publisher: name: arXiv
Year: 2023
Subjects: subject: Analysis of PDEs (math.AP)
subject: Mathematical Physics (math-ph)
subject: Chaotic Dynamics (nlin.CD)
subject: Fluid Dynamics (physics.flu-dyn)
subject: FOS: Mathematics
subject: FOS: Physical sciences

description: How does one derive models of dynamical feedback effects in multiscale, multiphysics systems such as wave mean flow interaction (WMFI)? We shall address this question for hybrid dynamical systems, whose motion can be expressed as the composition of two or more Lie-group actions. Hybrid systems abound in fluid dynamics. Examples include: the dynamics of complex fluids such as liquid crystals; wind-driven waves propagating with the currents moving on the sea surface; turbulence modelling in fluids and plasmas; and classical-quantum hydrodynamic models in molecular chemistry. From among these examples, the motivating question in this paper is: How do wind-driven waves produce ocean surface currents? The paper first summarises the geometric mechanics approach for deriving hybrid models of multiscale, multiphysics motions in ideal fluid dynamics. It then illustrates this approach for WMFI in the examples of 3D WKB waves and 2D wave amplitudes governed by the nonlinear Schrödinger (NLS) equation propagating in the frame of motion of an ideal incompressible inhomogeneous Euler fluid flow. The results for these examples tell us that the fluid flow in WMFI does not create waves. However, feedback in the opposite direction is possible, since 3D WKB and 2D NLS wave dynamics can indeed create circulatory fluid flow.
description: 2nd version, 32 pages, 3 figures, comments welcome by email
On the consistency of non-minimally coupled f(R) gravity
Creators: name: Tamanini, Nicola
name: Koivisto, Tomi S.
Publisher: name: arXiv
Year: 2013
Subjects: subject: General Relativity and Quantum Cosmology (gr-qc)
subject: Cosmology and Nongalactic Astrophysics (astro-ph.CO)
subject: High Energy Physics - Theory (hep-th)
subject: FOS: Physical sciences

description: Theories with a non-minimal coupling between the space-time curvature and matter fields introduce an extra force due to the non-conservation of the matter energy momentum. In the present work the theoretical consistency of such couplings is studied using a scalar field Lagrangian to model the matter content. The conditions that the coupling does not introduce ghosts, classical instabilities or superluminal propagation of perturbations are derived. These consistency conditions are then employed to rule out or severely restrict the forms of the non-minimal coupling functions considered in the previous literature. For example, a power-law coupling is viable only for sublinear positive power of the curvature scalar.
description: 13 pages
title: An die hohe deutsche constituirende National-Versammlung zu Frankfurt a. M.; [1848]
title: Neben dem hochwichtigen Werke einer deutschen Verfassung hat die hohe National-Versammlung auch den materiellen Interessen unsres deutschen Vaterlandes, und insbesondere der Handels- und Zollgesetzgebung ihre Aufmerksamkeit zugewendet ... ; [Leipzig, den 17. October 1848]
titleType: Subtitle
Creators: name: (:Unav)
Publisher: name: Universitätsbibliothek der Ludwig-Maximilians-Universität München
Year: 2018

description: Kopftitel. - In Fraktur
Dependence of simulated radiation damage on crystal structure and atomic misfit in metals
Creators: name: Stimac, Jared C.
name: Serrao, Chad
name: Mason, Jeremy K.
Publisher: name: arXiv
Year: 2023
Subjects: subject: Materials Science (cond-mat.mtrl-sci)
subject: Computational Physics (physics.comp-ph)
subject: FOS: Physical sciences

description: This study investigates radiation damage in three metals in the low temperature and high radiant flux regime using molecular dynamics and a Frenkel pair accumulation method to simulate up to $2.0$ displacements per atom. The metals considered include Fe, equiatomic CrCoNi, and a fictitious metal with identical bulk properties to the CrCoNi composed of a single atom type referred to as an A-atom. CrCoNi is found to sustain higher concentrations of dislocations than either the Fe or A-atom systems and more stacking faults than the A-atom system. The results suggest that the concentration of vacancies and interstitials are substantially higher for the CrCoNi than the A-atom system, perhaps reflecting that the recombination radius is smaller in CrCoNi due to the roughened potential energy landscape. A model that partitions the major contributions from defects to the stored energy is described, and serves to highlight a general need for higher fidelity approaches to point defect identification.