cometadata/datacite-rtg-text-other-reclassification-records huggingface dataset:
Aeroelastic Analysis of Transonic Flutter with CFD-Based Reduced-Order Model
Creators: name: Carloni, Ana Cristina Neves
name: Azevedo, João Luiz F.
Publisher: name: arXiv
Year: 2023
Subjects: subject: Fluid Dynamics (physics.flu-dyn)
subject: FOS: Physical sciences

description: The current work is concerned with studying processes for constructing reduced-order models capable of performing transonic aeroelastic stability analyses in the frequency domain based on computational fluid dynamics (CFD) techniques. The CFD calculations are based on the Euler equations, and the code uses a finite volume formulation for general unstructured grids. A centered spatial discretization with added artificial dissipation is used, and an explicit Runge-Kutta time marching method is employed. The dynamic system considered in the present work is a NACA 0012 airfoil-based typical section in the transonic regime. Unsteady calculations are performed for mode-by-mode and simultaneous excitation approaches, the latter defined by orthogonal Walsh functions. System identification techniques are employed to allow the splitting of the aerodynamic coefficient time histories into the contribution of each individual mode to the corresponding aerodynamic transfer functions. Generalized unsteady aerodynamic forces are approximated by a rational transfer function in the Laplace domain, in which nonlinear parameters are selected through a non-gradient optimization process. Different types of interpolating polynomials are tested and the results are compared. Results show that the proposed procedure can reproduce literature aeroelastic analysis data with a single unsteady CFD run.
description: 16 pages, 9 figures, part of the proceedings of the AIAA SciTech 2023 Forum. arXiv admin note: substantial text overlap with arXiv:2307.09644
Effect of the $2p2h$ cross-section uncertainties on an analysis of neutrino oscillations
Creators: name: Ankowski, Artur M.
name: Benhar, Omar
name: Mariani, Camillo
name: Vagnoni, Erica
Publisher: name: arXiv
Year: 2016
Subjects: subject: High Energy Physics - Phenomenology (hep-ph)
subject: High Energy Physics - Experiment (hep-ex)
subject: Nuclear Theory (nucl-th)
subject: FOS: Physical sciences

description: We report the results of a study aimed at quantifying the impact on the oscillation analysis of the uncertainties associated with the description of the neutrino-nucleus cross section in the two-particle--two-hole sector. The results of our calculations, based on the kinematic method of energy reconstruction and carried out comparing two data-driven approaches, show that the existing discrepancies in the neutrino cross sections have a sizable effect on the extracted oscillation parameters, particularly in the antineutrino channel.
description: 7 pages, 5 figures
Fine features of optical potential well induced by nonlinearity
Creators: name: Zhou, Lei-Ming
name: Qin, Yaqiang
name: Yang, Yuanjie
name: Jiang, Yuqiang
Publisher: name: arXiv
Year: 2023
Subjects: subject: Optics (physics.optics)
subject: FOS: Physical sciences

description: Particles trapped by optical tweezers, behaving as mechanical oscillators in an optomechanical system, have found tremendous applications in various disciplines and are still arousing research interest in frontier and fundamental physics. These optically trapped oscillators provide compact particle confinement and strong oscillator stiffness. But these features are limited by the size of the focused light spot of a laser beam, which is typically restricted by the optical diffraction limit. Here, we propose to build an optical potential well with fine features assisted by the nonlinearity of the particle material, which is independent of the optical diffraction limit. We show that the potential well shape can have super-oscillation-like features and a Fano-resonance-like phenomenon, and the width of the optical trap is far below the diffraction limit. A particle with nonlinearity trapped by an ordinary optical beam provides a new platform with a sub-diffraction potential well and can have applications in high-accuracy optical manipulation and high-precision metrology.
description: 4 pages, 5 figures
Die Kirche als „Sichtbare Gestalt der unsichtbaren Gnade"
Creators: name: Semmelroth, Otto
Publisher: name: Scholastik
Year: 1970

description: Scholastik, Bd. 28 Nr. 1 (1953): Scholastik. Vierteljahresschrift für Theologie und Philosophie, Band 28, Heft 1
A Characteristic Transmission Spectrum dominated by H$_{2}$O applies to the majority of HST/WFC3 exoplanet observations
Creators: name: Iyer, Aishwarya R.
name: Swain, Mark R.
name: Zellem, Robert T.
name: Line, Michael R.
name: Roudier, Gael
name: Rocha, Graca
name: Livingston, John H.
Publisher: name: arXiv
Year: 2015
Subjects: subject: Earth and Planetary Astrophysics (astro-ph.EP)
subject: FOS: Physical sciences

description: Currently, 19 transiting exoplanets have published transmission spectra obtained with the Hubble/WFC3 G141 near-IR grism. Using this sample, we have undertaken a uniform analysis incorporating measurement-error debiasing of the spectral modulation due to H$_{2}$O, measured in terms of the estimated atmospheric scale height, ${H_s}$. For those planets with a reported H$_{2}$O detection (10 out of 19), the spectral modulation due to H$_{2}$O ranges from 0.9 to 2.9~${H_s}$ with a mean value of 1.8~$\pm$~0.5~${H_s}$. This spectral modulation is significantly less than predicted for clear atmospheres. For the group of planets in which H$_{2}$O has been detected, we find the individual spectra can be coherently averaged to produce a characteristic spectrum in which the shape, together with the spectral modulation of the sample, are consistent with a range of H$_{2}$O mixing ratios and cloud-top pressures, with a minimum H$_{2}$O mixing ratio of 17~$^{+12}_{-6}$~ppm corresponding to the cloud-free case. Using this lower limit, we show that clouds or aerosols must block at least half of the atmospheric column that would otherwise be sampled by transmission spectroscopy in the case of a cloud-free atmosphere. We conclude that terminator-region clouds, with sufficient opacity to be opaque in slant-viewing geometry, are common in hot Jupiters.
description: Accepted by ApJ
Binary star population of the Sculptor dwarf galaxy
Creators: name: Arroyo-Polonio, José María
name: Battaglia, Giuseppina
name: Thomas, Guillaume F.
name: Irwin, Michael J.
name: McConnachie, Alan W.
name: Tolstoy, Eline
Publisher: name: arXiv
Year: 2023
Subjects: subject: Astrophysics of Galaxies (astro-ph.GA)
subject: FOS: Physical sciences

description: Aims: We aim to compute the binary fraction of "classical" dwarf spheroidal galaxies (dSphs) that are satellites of the Milky Way (MW). This value can offer insights into the binary fraction in environments that are less dense and more metal-poor than our own galaxy. Additionally, knowledge of the binary fraction in dwarf galaxies is important with respect to avoiding overestimations of their dark matter content, inferred from stellar kinematics. Methods: We refined an existing method from the literature, placing an emphasis on providing robust uncertainties on the value of the binary fraction. We applied this modified method to a VLT/FLAMES dataset for Sculptor, specifically acquired for the purpose of velocity monitoring of individual stars, as well as to literature datasets for other six MW "classical" dSphs. In all cases, the targeted stars were mainly red giant branch stars (RGBs), with expected masses of around 0.8 M$_{\odot}$. The VLT/FLAMES dataset offers the most precise binary fractions compared to literature datasets, due to its time baseline of 12 years, along with at least nine repeated observations for each star. Results: We found that the binary fraction of Sculptor is 0.55$^{+0.17}_{-0.19}$. We find that it is important to take into account the Roche lobe overflow for constraining the period distribution of binary stars. In contrast to what has recently been proposed in the literature, our analysis indicates that there is no evidence to support varying the properties of the binary stellar population or their deviations from those established for the solar neighborhood, based on the sample of MW dSphs analyzed here.
description: 17 pages, 14 figures, Accepted for publication in Astronomy & Astrophysics
Open Innovation in Geographically bounded Organizational Fields: Recent developments in the pharmaceutical industry
Creators: name: Minnig, Christoph
name: Dörhöfer, Steffen
Publisher: name: Human Resource Management Academic Research Society
Year: 2013
Subjects: subject: Open Innovation
subject: Culture
subject: Organizational fields. Cluster
subject: Life sciences
subject: 330 - Wirtschaft

description: Many companies have changed their strategy from closed to open innovation. Empirical investigations of open innovation reveal that an ideal-typical model rarely occurs in reality. The present study identifies various open innovation approaches and analyzes regional open innovation processes to contribute to the development of a theoretically based and empirically grounded analytic concept of the linkage between regional economies and corporate regional open innovation strategies. Therefore, we focus on proximity in the open innovation process, especially the cultural underpinning of interorganizational relationships. Open innovation researchhas often neglected these two aspects. A more network-based perspective on open innovation provides a clearer and more differentiated analytic framework for understanding relationships among economic, political, and scientific actors along the “wholeinnovation chain.” To expand the regional open innovation analytical framework, we investigate open innovation processes in the Basel region life sciences industry, where two large pharmaceutical companies have shaped the region and developed different open innovation strategies.We found that companies use different open innovation strategies related to spatial scales reflecting their awareness of proximity among actors and the socio-cultural underpinning of their interactions. The cultural underpinning seems to provide an important cornerstone of success in the partner interaction. Keywords - Open Innovation, Culture, Organizational fields. Cluster, Life sciences
Thinking outside the ROCs: Designing Decorrelated Taggers (DDT) for jet substructure
Creators: name: Dolen, James
name: Harris, Philip
name: Marzani, Simone
name: Rappoccio, Salvatore
name: Tran, Nhan
Publisher: name: arXiv
Year: 2016
Subjects: subject: High Energy Physics - Phenomenology (hep-ph)
subject: High Energy Physics - Experiment (hep-ex)
subject: FOS: Physical sciences

description: We explore the scale-dependence and correlations of jet substructure observables to improve upon existing techniques in the identification of highly Lorentz-boosted objects. Modified observables are designed to remove correlations from existing theoretically well-understood observables, providing practical advantages for experimental measurements and searches for new phenomena. We study such observables in $W$ jet tagging and provide recommendations for observables based on considerations beyond signal and background efficiencies.
Spontaneous orbital polarization in the nematic phase of FeSe
Creators: name: Occhialini, Connor A.
name: Sanchez, Joshua J.
name: Song, Qian
name: Fabbris, Gilberto
name: Choi, Yongseong
name: Kim, Jong-Woo
name: Ryan, Philip J.
name: Comin, Riccardo
Publisher: name: arXiv
Year: 2023
Subjects: subject: Superconductivity (cond-mat.supr-con)
subject: Strongly Correlated Electrons (cond-mat.str-el)
subject: FOS: Physical sciences

description: The origin of nematicity in FeSe remains a critical outstanding question towards understanding unconventional superconductivity in proximity to nematic order. To understand what drives the nematicity, it is essential to determine which electronic degree of freedom admits a spontaneous order parameter independent from the structural distortion. Here, we use X-ray linear dichroism at the Fe K pre-edge to measure the anisotropy of the 3d orbital occupation as a function of in situ applied stress and temperature across the nematic transition. Along with X-ray diffraction to precisely quantify the strain state, we reveal a lattice-independent, spontaneously-ordered orbital polarization within the nematic phase, as well as an orbital polarizability that diverges as the transition is approached from above. These results provide strong evidence that spontaneous orbital polarization serves as the primary order parameter of the nematic phase.
description: Main: 22 pages, 4 figures. Supp: 32 pages, 18 figures
Realization of Power-Law Inflation & Variants via Variation of the Strong Coupling Constant
Creators: name: AlHallak, M.
name: Chamoun, N.
Publisher: name: arXiv
Year: 2016
Subjects: subject: High Energy Physics - Phenomenology (hep-ph)
subject: FOS: Physical sciences

description: We present a model of power law inflation generated by variation of the strong coupling constant. We then extend the model to two varying coupling constants which leads to a potential consisting of a linear combination of exponential terms. Some variants of the latter may be self-consistent and can accommodate the experimental data of the Planck 2015 and other recent experiments.
description: 14 pages, 5 figures, 2 tables. Version to appear in JCAP
Cytotaxonomic characterization and estimation of migration patterns of onchocerciasis vectors (Simulium damnosum sensu lato) in northwestern Ethiopia based on RADSeq data
Creators: name: Hedtke, Shannon
name: Post, Rory J
name: FELEKE, Sindew Mekasha
name: Gebretsadik, Fikre Seife
name: Boakye, Daniel A
name: Krueger, Andreas
name: Grant, Warwick
name: Wilding, Craig S
Publisher: name: La Trobe
Year: 2024
Subjects: classificationCode: 32
subject: Biomedical and clinical sciences
classificationCode: 31
subject: Biological sciences
subject: FOS: Biological sciences
classificationCode: 320704
subject: Medical parasitology
classificationCode: 42
subject: Health sciences
subject: FOS: Health sciences

description: BACKGROUND: While much progress has been made in the control and elimination of onchocerciasis across Africa, the extent to which vector migration might confound progress towards elimination or result in re-establishment of endemism in areas where transmission has been eliminated remains unclear. In Northern Ethiopia, Metema and Metekel-two foci located near the Sudan border-exhibit continuing transmission. While progress towards elimination has been faster in Metema, there remains a problematic hotspot of transmission. Whether migration from Metekel contributes to this is currently unknown. METHODOLOGY/PRINCIPLE FINDINGS: To assess the role of vector migration from Metekel into Metema, we present a population genomics study of 151 adult female vectors using 47,638 RADseq markers and mtDNA CoI sequencing. From additional cytotaxonomy data we identified a new cytoform in Metema, closely related to S. damnosum s.str, here called the Gondar form. RADseq data strongly indicate the existence of two distinctly differentiated clusters within S. damnosum s.l.: one genotypic cluster found only in Metema, and the second found predominantly in Metekel. Because blackflies from both clusters were found in sympatry (in all four collection sites in Metema), but hybrid genotypes were not detected, there may be reproductive barriers preventing interbreeding. The dominant genotype in Metema was not found in Metekel while the dominant genotype in Metekel was found in Metema, indicating that (at the time of sampling) migration is primarily unidirectional, with flies moving from Metekel to Metema. There was strong differentiation between clusters but little genetic differentiation within clusters, suggesting migration and gene flow of flies within the same genetic cluster are sufficient to prevent genetic divergence between sites. CONCLUSIONS/SIGNIFICANCE: Our results confirm that Metekel and Metema represent different transmission foci, but also indicate a northward movement of vectors between foci that may have epidemiological importance, although its significance requires further study.
Current Injection Attack against the KLJN Secure Key Exchange
Creators: name: Chen, Hsien-Pu
name: Mohammad, Muneer
name: Kish, Laszlo B.
Publisher: name: arXiv
Year: 2015
Subjects: subject: Cryptography and Security (cs.CR)
subject: Emerging Technologies (cs.ET)
subject: Classical Physics (physics.class-ph)
subject: FOS: Computer and information sciences
subject: FOS: Physical sciences

description: The Kirchhoff-law-Johnson-noise (KLJN) scheme is a statistical/physical secure key exchange system based on the laws of classical statistical physics to provide unconditional security. We used the LTSPICE industrial cable and circuit simulator to emulate one of the major active (invasive) attacks, the current injection attack, against the ideal and a practical KLJN system, respectively. We show that two security enhancement techniques, namely, the instantaneous voltage/current comparison method, and a simple privacy amplification scheme, independently and effectively eliminate the information leak and successfully preserve the system's unconditional security.
A Single-Photon Imager Based on Microwave Plasmonic Superconducting Nanowire
Creators: name: Zhao, Qing-Yuan
name: Zhu, Di
name: Calandri, Niccolò
name: Dane, Andrew E.
name: McCaughan, Adam N.
name: Bellei, Francesco
name: Wang, Hao-Zhu
name: Santavicca, Daniel F.
name: Berggren, Karl K.
Publisher: name: arXiv
Year: 2016
Subjects: subject: Optics (physics.optics)
subject: Superconductivity (cond-mat.supr-con)
subject: Instrumentation and Detectors (physics.ins-det)
subject: FOS: Physical sciences

description: Detecting spatial and temporal information of individual photons by using single-photon-detector (SPD) arrays is critical to applications in spectroscopy, communication, biological imaging, astronomical observation, and quantum-information processing. Among the current SPDs1,detectors based on superconducting nanowires have outstanding performance2, but are limited in their ability to be integrated into large scale arrays due to the engineering difficulty of high-bandwidth cryogenic electronic readout3-8. Here, we address this problem by demonstrating a scalable single-photon imager using a single continuous photon-sensitive superconducting nanowire microwave-plasmon transmission line. By appropriately designing the nanowire's local electromagnetic environment so that the nanowire guides microwave plasmons, the propagating voltages signals generated by a photon-detection event were slowed down to ~ 2% of the speed of light. As a result, the time difference between arrivals of the signals at the two ends of the nanowire naturally encoded the position and time of absorption of the photon. Thus, with only two readout lines, we demonstrated that a 19.7-mm-long nanowire meandered across an area of 286 μm * 193 μm was capable of resolving ~590 effective pixels while simultaneously recording the arrival times of photons with a temporal resolution of 50 ps. The nanowire imager presents a scalable approach to realizing high-resolution photon imaging in time and space.
Auer, J.: Die Entwicklung der Gnadenlehre in der Hochscholastik
Creators: name: Weisweiler, Heinrich
Publisher: name: Scholastik
Year: 1970

description: Scholastik, Bd. 27 Nr. 4 (1952): Scholastik. Vierteljahresschrift für Theologie und Philosophie, Band 27, Heft 4
New insights on near-extremal black holes
Creators: name: Turiaci, Gustavo J.
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: We describe two puzzles that arise from a semiclassical treatment of near-extremal black hole thermodynamics. Both puzzles are resolved by realizing that quantum corrections become arbitrarily large at low temperatures, and we explain how the spectrum and dynamics of near-extremal black holes are modified. This analysis also implies that without low energy supersymmetry, such as in the real world, extremal black holes at exactly zero temperature do not exist since the classical picture breaks down completely. In the context of supergravity the analysis is modified; supersymmetric extremal black holes do exist and they are separated from the non-extremal spectrum by a gap power-law suppressed in the entropy. This justifies black hole microstate counting performed in the 90's using string theory.
description: 13 pp; Short article written for the ICTS Newsletter
An operator basis for the Standard Model with an added scalar singlet
Creators: name: Gripaios, Ben
name: Sutherland, Dave
Publisher: name: arXiv
Year: 2016
Subjects: subject: High Energy Physics - Phenomenology (hep-ph)
subject: High Energy Physics - Experiment (hep-ex)
subject: FOS: Physical sciences

description: Motivated by the possible di-gamma resonance at 750 GeV, we present a basis of effective operators for the Standard Model plus a scalar singlet at dimensions 5, 6, and 7. We point out that an earlier list at dimensions 5 and 6 contains two redundant operators at dimension 5.
description: 8 pages and 2 tables. v2: removed redundant operator from dimension 7 list. v3: fixed bug in colour coding of CP properties and updated to match published version
Resilience of antagonistic networks with regard to the effects of initial failures and degree-degree correlations
Creators: name: Watanabe, Shunsuke
name: Kabashima, Yoshiyuki
Publisher: name: arXiv
Year: 2016
Subjects: subject: Disordered Systems and Neural Networks (cond-mat.dis-nn)
subject: FOS: Physical sciences

description: In this study, we investigate the resilience of duplex networked layers ($α$ and $β$) coupled with antagonistic interlinks, each layer of which inhibits its counterpart at the microscopic level, changing the following factors: whether the influence of the initial failures in $α$ remains (quenched (Case Q)) or not (free (Case F)); the effect of intralayer degree-degree correlations in each layer and interlayer degree-degree correlations; and the type of the initial failures, such as random failures (RFs) or targeted attacks (TAs). We illustrate that the percolation processes repeat in both Cases Q and F, although only in Case F are nodes that initially failed reactivated. To analytically evaluate the resilience of each layer, we develop a methodology based on the cavity method for deriving the size of a giant component (GC). Strong hysteresis, which is ignored in the standard cavity analysis, is observed in the repetition of the percolation processes particularly in Case F. To handle this, we heuristically modify interlayer messages for macroscopic analysis, the utility of which is verified by numerical experiments. The percolation transition in each layer is continuous in both Cases Q and F. We also analyze the influences of degree-degree correlations on the robustness of layer $α$, in particular for the case of TAs. The analysis indicates that the critical fraction of initial failures that makes the GC size in layer $α$ vanish depends only on its intralayer degree-degree correlations. Although our model is defined in a somewhat abstract manner, it may have relevance to ecological systems that are composed of endangered species (layer $α$) and invaders (layer $β$), the former of which are damaged by the latter whereas the latter are exterminated in the areas where the former are active.
description: 16 pages, 10 figures, 1table
Data-driven Radiative Hydrodynamic Modeling of the 2014 March 29 X1.0 Solar Flare
Creators: name: da Costa, Fatima Rubio
name: Kleint, Lucia
name: Petrosian, Vahé
name: Liu, Wei
name: Allred, Joel C.
Publisher: name: arXiv
Year: 2016
Subjects: subject: Solar and Stellar Astrophysics (astro-ph.SR)
subject: FOS: Physical sciences

description: Spectroscopic observations of solar flares provide critical diagnostics of the physical conditions in the flaring atmosphere. Some key features in observed spectra have not yet been accounted for in existing flare models. Here we report a data-driven simulation of the well-observed X1.0 flare on 2014 March 29 that can reconcile some well-known spectral discrepancies. We analyzed spectra of the flaring region from the Interface Region Imaging Spectrograph (IRIS) in MgII h&k, the Interferometric BIdimensional Spectropolarimeter at the Dunn Solar Telescope (DST/IBIS) in H$α$ 6563 Å and CaII 8542 Å, and the Reuven Ramaty High Energy Solar Spectroscope Imager (RHESSI) in hard X-rays. We constructed a multi-threaded flare loop model and used the electron flux inferred from RHESSI data as the input to the radiative hydrodynamic code RADYN to simulate the atmospheric response. We then synthesized various chromospheric emission lines and compared them with the IRIS and IBIS observations. In general, the synthetic intensities agree with the observed ones, especially near the northern footpoint of the flare. The simulated MgII line profile has narrower wings than the observed one. This discrepancy can be reduced by using a higher microturbulent velocity (27 km/s) in a narrow chromospheric layer. In addition, we found that an increase of electron density in the upper chromosphere within a narrow height range of $\approx$800 km below the transition region can turn the simulated MgII line core into emission and thus reproduce the single peaked profile, which is a common feature in all IRIS flares.
description: 14 pages, 18 figures, accepted in ApJ
Evidence of radiation-driven Landau states in 2D electron systems: magnetoresistance oscillations phase shift
Creators: name: Inarrea, Jesus
Publisher: name: arXiv
Year: 2015
Subjects: subject: Mesoscale and Nanoscale Physics (cond-mat.mes-hall)
subject: FOS: Physical sciences

description: We provide the ultimate explanation of one of the core features of microwave-induced magnetoresistance oscillations in high mobility two dimensional electron systems: the 1/4-cycle phase shift of minima. We start with the radiation-driven electron orbits model with the novel concept of scattering flight-time between Landau states. We calculate the extrema and nodes positions obtaining an exact coincidence with the experimental ones. The main finding is that the physical origin of the phase shift is a delay of $\fracπ{2}$ of the radiation-driven Landau guiding center with respect to radiation, demonstrating the oscillating nature of the irradiated Landau states. We analyze the dependence of this minima on radiation frequency and power and its possible shift with the quality of the sample
description: 5 pages, 3 figures
Higher Groupoid Bundles, Higher Spaces, and Self-Dual Tensor Field Equations
Creators: name: Jurco, Branislav
name: Saemann, Christian
name: Wolf, Martin
Publisher: name: arXiv
Year: 2016
Subjects: subject: High Energy Physics - Theory (hep-th)
subject: Mathematical Physics (math-ph)
subject: Differential Geometry (math.DG)
subject: FOS: Physical sciences
subject: FOS: Mathematics

description: We develop a description of higher gauge theory with higher groupoids as gauge structure from first principles. This approach captures ordinary gauge theories and gauged sigma models as well as their categorifications on a very general class of (higher) spaces comprising presentable differentiable stacks, as e.g. orbifolds. We start off with a self-contained review on simplicial sets as models of $(\infty,1)$-categories. We then discuss principal bundles in terms of simplicial maps and their homotopies. We explain in detail a differentiation procedure, suggested by Severa, that maps higher groupoids to $L_\infty$-algebroids. Generalising this procedure, we define connections for higher groupoid bundles. As an application, we obtain six-dimensional superconformal field theories via a Penrose-Ward transform of higher groupoid bundles over a twistor space. This construction reduces the search for non-Abelian self-dual tensor field equations in six dimensions to a search for the appropriate (higher) gauge structure. The treatment aims to be accessible to theoretical physicists.
description: v2: 80 pages, typos fixed, published version
Tensor renormalization group analysis of CP(N-1) model
Creators: name: Kawauchi, Hikaru
name: Takeda, Shinji
Publisher: name: arXiv
Year: 2016
Subjects: subject: High Energy Physics - Lattice (hep-lat)
subject: FOS: Physical sciences

description: We apply the higher-order tensor renormalization group to the lattice CP($N-1$) model in two dimensions. A tensor network representation of the CP($N-1$) model in the presence of the $θ$ term is derived. We confirm that the numerical results of the CP(1) model without the $θ$ term using this method are consistent with that of the O(3) model which is analyzed by the same method in the region $β\gg 1$ and that obtained by the Monte Carlo simulation in a wider range of $β$. The numerical computation including the $θ$ term is left for future challenges.
description: 19 pages, 7 figures. arXiv admin note: text overlap with arXiv:1511.00348
Leptonic Precision Test of Leptophilic Two-Higgs-Doublet Model
Creators: name: Chun, Eung Jin
name: Kim, Jinsu
Publisher: name: arXiv
Year: 2016
Subjects: subject: High Energy Physics - Phenomenology (hep-ph)
subject: FOS: Physical sciences

description: The type X (lepton-specific) two-Higgs-doublet model at large $\tanβ$ becomes leptophilic and thus allows a light pseudoscalar $A$ accommodating the observed muon $g-2$ deviation without conflicting with various hadronic constraints. On the other hand, it is strongly constrained by leptonic precision observables such as lepton universality test in the neutral and charged currents. Treating all the lepton universality data in a consistent way, we show how the current data constrain the parameter space of $m_A$ and $\tanβ$ for given degenerate masses of heavy Higgs bosons $H$ and $H^\pm$. While no overlapping region is found at $1σ$, a sizable region is still viable at $2σ$ for $H/H^\pm$ masses at around 200$\sim$400 GeV.
description: 11 pages; v2: 14 pages, 1 figure, version to be published in JHEP
X-Ray Thomson scattering without the Chihara decomposition
Creators: name: Baczewski, Andrew D.
name: Shulenburger, Luke
name: Desjarlais, Michael P.
name: Hansen, Stephanie B.
name: Magyar, Rudolph J.
Publisher: name: arXiv
Year: 2015
Subjects: subject: Materials Science (cond-mat.mtrl-sci)
subject: Chemical Physics (physics.chem-ph)
subject: Computational Physics (physics.comp-ph)
subject: Plasma Physics (physics.plasm-ph)
subject: FOS: Physical sciences

description: X-Ray Thomson Scattering (XRTS) is an important experimental technique used to measure the temperature, ionization state, structure, and density of warm dense matter (WDM). The fundamental property probed in these experiments is the electronic dynamic structure factor (DSF). In most models, this is decomposed into three terms [Chihara, J. Phys. F: Metal Phys. {\bf 17}, 295 (1987)] representing the response of tightly bound, loosely bound, and free electrons. Accompanying this decomposition is the classification of electrons as either bound or free, which is useful for gapped and cold systems but becomes increasingly questionable as temperatures and pressures increase into the WDM regime. In this work we provide unambiguous first principles calculations of the dynamic structure factor of warm dense beryllium, independent of the Chihara form, by treating bound and free states under a single formalism. The computational approach is real-time finite-temperature time-dependent density functional theory (TDDFT) being applied here for the first time to WDM. We compare results from TDDFT to Chihara-based calculations for experimentally relevant conditions in shock-compressed beryllium.
description: 12 pages, 8 figures, and 1 table. 6 pages main manuscript
An Autonomous Dynamical System Captures all LCSs in Three-Dimensional Unsteady Flows
Creators: name: Oettinger, David
name: Haller, George
Publisher: name: arXiv
Year: 2016
Subjects: subject: Dynamical Systems (math.DS)
subject: Chaotic Dynamics (nlin.CD)
subject: Fluid Dynamics (physics.flu-dyn)
subject: FOS: Mathematics
subject: FOS: Physical sciences

description: Lagrangian coherent structures (LCSs) are material surfaces that shape finite-time tracer patterns in flows with arbitrary time dependence. Depending on their deformation properties, elliptic and hyperbolic LCSs have been identified from different variational principles, solving different equations. Here we observe that, in three dimensions, initial positions of all variational LCSs are invariant manifolds of the same autonomous dynamical system, generated by the intermediate eigenvector field, $ξ_{2}(x_{0})$, of the Cauchy-Green strain tensor. This $ξ_{2}$-system allows for the detection of LCSs in any unsteady flow by classic methods, such as Poincaré maps, developed for autonomous dynamical systems. As examples, we consider both steady and time-aperiodic flows, and use their dual $ξ_{2}$-system to uncover both hyperbolic and elliptic LCSs from a single computation.
Advective-diffusive motion on large scales from small-scale dynamics with an internal symmetry
Creators: name: Marino, Raffaele
name: Aurell, Erik
Publisher: name: arXiv
Year: 2016
Subjects: subject: Statistical Mechanics (cond-mat.stat-mech)
subject: FOS: Physical sciences

description: We consider coupled diffusions in $n$-dimensional space and on a compact manifold and the resulting effective advective-diffusive motion on large scales in space. The effective drift (advection) and effective diffusion are determined as a solvability conditions in a multi-scale analysis. As an example we consider coupled diffusions in $3$-dimensional space and on the group manifold $SO(3)$ of proper rotations, generalizing results obtained by H. Brenner (1981). We show in detail how the analysis can be conveniently be carried out using local charts and invariance arguments. As a further example we consider coupled diffusions in $2$-dimensional complex space and on the group manifold $SU(2)$. We show that although the local operators may be the same as for $SO(3)$, due to the global nature of the solvability conditions the resulting diffusion will be different, and generally more isotropic.
description: 20 pages, 4 figures
Schindewolf, O.H.: Grundfragen der Paläontologie
Creators: name: Haas, A.
Publisher: name: Scholastik
Year: 1970

description: Scholastik, Bd. 27 Nr. 4 (1952): Scholastik. Vierteljahresschrift für Theologie und Philosophie, Band 27, Heft 4
Average-atom treatment of relaxation time in X-ray Thomson scattering from warm-dense matter
Creators: name: Johnson, Walter R.
name: Nilsen, Joseph
Publisher: name: arXiv
Year: 2015
Subjects: subject: Plasma Physics (physics.plasm-ph)
subject: FOS: Physical sciences

description: The influence of finite relaxation times on Thomson scattering from warm-dense plasmas is examined within the framework of the average-atom approximation. Presently most calculations use the collision-free Lindhard dielectric function to evaluate the free-electron contribution to the Thomson cross section. In this work, we use the Mermin dielectric function, which includes relaxation time explicitly. The relaxation time is evaluated by treating the average atom as an impurity in a uniform electron gas and depends critically on the transport cross section. The calculated relaxation rates agree well with values inferred from the Ziman formula for the static conductivity and also with rates inferred from a fit to the frequency-dependent conductivity. Transport cross sections determined by the phase-shift analysis in the average-atom potential are compared with those evaluated in the commonly used Born approximation. The Born approximation converges to the exact cross sections at high energies; however, differences that occur at low energies lead to corresponding differences in relaxation rates. The relative importance of including relaxation time when modeling X-ray Thomson scattering spectra is examined by comparing calculations of the free-electron dynamic structure function for Thomson scattering using Lindhard and Mermin dielectric functions. Applications are given to warm-dense Be plasmas, with temperatures ranging from 2 to 32~eV and densities ranging from 2 to 64~g/cc.
description: 7 pages, 6 figures, 2 tables
Blondel, M.: La Philosophie et l´Esprit chrétien
Creators: name: Vries, J. De
Publisher: name: Scholastik
Year: 1970

description: Scholastik, Bd. 27 Nr. 4 (1952): Scholastik. Vierteljahresschrift für Theologie und Philosophie, Band 27, Heft 4
3D track reconstruction of low-energy electrons in the MIGDAL low pressure optical time projection chamber
Creators: name: Tilly, Elizabeth
name: Handley, Magnus
name: Collaboration, MIGDAL
Publisher: name: arXiv
Year: 2023
Subjects: subject: High Energy Physics - Experiment (hep-ex)
subject: Data Analysis, Statistics and Probability (physics.data-an)
subject: Instrumentation and Detectors (physics.ins-det)
subject: FOS: Physical sciences

description: We demonstrate three-dimensional track reconstruction of electrons in a low pressure (50 Torr) optical TPC consisting of two glass GEMs with an ITO strip readout in CF4 and CF4/Ar mixtures. The reconstructed tracks show a variety of event topologies, including short tracks from photoelectrons induced by 55Fe 5.9 keV X-rays and long tracks from gamma ray interactions and beta decays. Algorithms for event identification and track ridge detection are discussed as well as multiple methods for integrating information from the camera image and ITO waveforms with the goal of full 3D reconstruction of the track.
description: MPGD 2022 Conference Proceedings
Teupe, Cambrón, Einführung in die Exegese des Alten Testaments
Creators: name: Weber, Beat
Publisher: name: Jahrbuch für evangelikale Theologie
Year: 2025

description: 1822610885
description: Jahrbuch für evangelikale Theologie, V. 18 (2004): Jahrbuch für evangelikale Theologie, Band 18
Möller, J.: Existenzialphilosophie und katholische Theologie
Creators: name: Lotz, Johannes Baptist
Publisher: name: Scholastik
Year: 1970

description: Scholastik, Bd. 27 Nr. 4 (1952): Scholastik. Vierteljahresschrift für Theologie und Philosophie, Band 27, Heft 4
Radii and binding energies in oxygen isotopes: a puzzle for nuclear forces
Creators: name: Lapoux, V.
name: Somà, V.
name: Barbieri, C.
name: Hergert, H.
name: Holt, J. D.
name: Stroberg, S. R.
Publisher: name: arXiv
Year: 2016
Subjects: subject: Nuclear Experiment (nucl-ex)
subject: Nuclear Theory (nucl-th)
subject: FOS: Physical sciences

description: We present a systematic study of both nuclear radii and binding energies in (even) oxygen isotopes from the valley of stability to the neutron drip line. Both charge and matter radii are compared to state-of-the-art {\it ab initio} calculations along with binding energy systematics. Experimental matter radii are obtained through a complete evaluation of the available elastic proton scattering data of oxygen isotopes. We show that, in spite of a good reproduction of binding energies, {\it ab initio} calculations with conventional nuclear interactions derived within chiral effective field theory fail to provide a realistic description of charge and matter radii. A novel version of two- and three-nucleon forces leads to considerable improvement of the simultaneous description of the three observables for stable isotopes, but shows deficiencies for the most neutron-rich systems. Thus, crucial challenges related to the development of nuclear interactions remain.
description: 6 pages, 5 figures, Submitted to Nature Physics, April 12th 2016; first version (v1 Arxiv) Internal Report Preprint Irfu-18 December 2015. 6 p., 5 fig., Submitted to Physical Review Letters, April 29, May 3rd 2016; 2nd version. Int. Rep. Irfu-24 May 2016. Published in PRL, 27 July 2016 with the modified title (Radii and binding energies in oxygen isotopes: a challenge for nuclear forces)
Strong Correlation Effects on Topological Quantum Phase Transitions in Three Dimensions
Creators: name: Amaricci, A.
name: Budich, J. C.
name: Capone, M.
name: Trauzettel, B.
name: Sangiovanni, G.
Publisher: name: arXiv
Year: 2016
Subjects: subject: Strongly Correlated Electrons (cond-mat.str-el)
subject: FOS: Physical sciences

description: We investigate the role of short-ranged electron-electron interactions in a paradigmatic model of three dimensional topological insulators, using dynamical mean-field theory and focusing on non magnetically ordered solutions. The non-interacting band-structure is controlled by a mass term M, whose value discriminates between three different insulating phases, a trivial band insulator and two distinct topologically non-trivial phases. We characterize the evolution of the transitions between the different phases as a function of the local Coulomb repulsion U and find a remarkable dependence of the U -M phase diagram on the value of the local Hund's exchange coupling J. However, regardless the value of J, following the evolution of the topological transition line between a trivial band insulator and a topological insulator, we find a critical value of U separating a continuous transition from a first-order one. When the Hund's coupling is significant, a Mott insulator is stabilized at large U . In proximity of the Mott transition we observe the emergence of an anomalous "Mott-like" strong topological insulating state.
description: 11 pages, 8 figures
Markov Decision Processes with Time-Varying Geometric Discounting
Creators: name: Gan, Jiarui
name: Hennes, Annika
name: Majumdar, Rupak
name: Mandal, Debmalya
name: Radanovic, Goran
Publisher: name: arXiv
Year: 2023
Subjects: subject: Artificial Intelligence (cs.AI)
subject: Computer Science and Game Theory (cs.GT)
subject: FOS: Computer and information sciences

description: Canonical models of Markov decision processes (MDPs) usually consider geometric discounting based on a constant discount factor. While this standard modeling approach has led to many elegant results, some recent studies indicate the necessity of modeling time-varying discounting in certain applications. This paper studies a model of infinite-horizon MDPs with time-varying discount factors. We take a game-theoretic perspective -- whereby each time step is treated as an independent decision maker with their own (fixed) discount factor -- and we study the subgame perfect equilibrium (SPE) of the resulting game as well as the related algorithmic problems. We present a constructive proof of the existence of an SPE and demonstrate the EXPTIME-hardness of computing an SPE. We also turn to the approximate notion of $ε$-SPE and show that an $ε$-SPE exists under milder assumptions. An algorithm is presented to compute an $ε$-SPE, of which an upper bound of the time complexity, as a function of the convergence property of the time-varying discount factor, is provided.
description: 24 pages, 3 figures
Instanton effects in ABJM theory with general R-charge assignments
Creators: name: Nosaka, Tomoki
Publisher: name: arXiv
Year: 2015
Subjects: subject: High Energy Physics - Theory (hep-th)
subject: FOS: Physical sciences

description: We study the large N expansion of the partition function of the quiver superconformal Chern-Simons theories deformed by two continuous parameters which correspond to the general R-charge assignment to the matter fields. Though the deformation breaks the conformal symmetry, we find that the partition function shares various structures with the superconformal cases, such as the Airy function expression of the perturbative expansion in 1/N with the overall constant A(k) related to the constant map in the ABJM case through a simple rescaling of k. We also identify five kinds of the non-perturbative effects in 1/N which correspond to the membrane instantons. The instanton exponents and the singular structure of the coefficients depend on the continuous deformation parameters, in contrast to the superconformal case where all the parameters are integers associated with the orbifold action on the moduli space. This implies that the singularity of the instanton effects would be observable also in the gravity side.
description: 24 pages, two figures; v2: typos corrected and footnote added
Novel Batch Active Learning Approach and Its Application to Synthetic Aperture Radar Datasets
Creators: name: Chapman, James
name: Chen, Bohan
name: Tan, Zheng
name: Calder, Jeff
name: Miller, Kevin
name: Bertozzi, Andrea L.
Publisher: name: arXiv
Year: 2023
Subjects: subject: Machine Learning (cs.LG)
subject: Computer Vision and Pattern Recognition (cs.CV)
subject: Signal Processing (eess.SP)
subject: FOS: Computer and information sciences
subject: FOS: Electrical engineering, electronic engineering, information engineering
subject: I.2.6; I.2.10; I.4.0; I.4.9

description: Active learning improves the performance of machine learning methods by judiciously selecting a limited number of unlabeled data points to query for labels, with the aim of maximally improving the underlying classifier's performance. Recent gains have been made using sequential active learning for synthetic aperture radar (SAR) data arXiv:2204.00005. In each iteration, sequential active learning selects a query set of size one while batch active learning selects a query set of multiple datapoints. While batch active learning methods exhibit greater efficiency, the challenge lies in maintaining model accuracy relative to sequential active learning methods. We developed a novel, two-part approach for batch active learning: Dijkstra's Annulus Core-Set (DAC) for core-set generation and LocalMax for batch sampling. The batch active learning process that combines DAC and LocalMax achieves nearly identical accuracy as sequential active learning but is more efficient, proportional to the batch size. As an application, a pipeline is built based on transfer learning feature embedding, graph learning, DAC, and LocalMax to classify the FUSAR-Ship and OpenSARShip datasets. Our pipeline outperforms the state-of-the-art CNN-based methods.
description: 16 pages, 7 figures, Preprint
A simplicial approach to multiplier bimonoids
Creators: name: Böhm, Gabriella
name: Lack, Stephen
Publisher: name: arXiv
Year: 2015
Subjects: subject: Category Theory (math.CT)
subject: Quantum Algebra (math.QA)
subject: FOS: Mathematics
subject: 18D10, 16T10, 18G30

description: Although multiplier bimonoids in general are not known to correspond to comonoids in any monoidal category, we classify them in terms of maps from the Catalan simplicial set to another suitable simplicial set; thus they can be regarded as (co)monoids in something more general than a monoidal category (namely, the simplicial set itself). We analyze the particular simplicial maps corresponding to that class of multiplier bimonoids which can be regarded as comonoids.
description: 14 pages; v2 minor changes only, to appear in Bulletin of the Belgian Mathematical Society -- Simon Stevin