cometadata/datacite-rtg-text-other-reclassification-records huggingface dataset:
Quantum Detection of Inertial Frame Dragging
Creators: name: Cong, Wan
name: Bicak, Jiri
name: Kubiznak, David
name: Mann, Robert B.
Publisher: name: arXiv
Year: 2020
Subjects: subject: General Relativity and Quantum Cosmology (gr-qc)
subject: High Energy Physics - Theory (hep-th)
subject: Quantum Physics (quant-ph)
subject: FOS: Physical sciences

description: A relativistic theory of gravity like general relativity produces phenomena differing fundamentally from Newton's theory. An example, analogous to electromagnetic induction, is gravitomagnetism, or the dragging of inertial frames by mass-energy currents. These effects have recently been confirmed by classical observations. Here we show, for the first time, that they can be observed by a quantum detector. We study the response function of Unruh De-Witt detectors placed in a slowly rotating shell. We show that the response function picks up the presence of rotation even though the spacetime inside the shell is flat and the detector is locally inertial. The detector can distinguish between the static situation when the shell is non-rotating and the stationary case when the shell rotates and the dragging of inertial frames, i.e. gravitomagnetic effects, arise. Moreover, it can do so when the detector is switched on for a finite time interval within which a light signal cannot travel to the shell and back to convey the presence of rotation.
description: 5 pages, 3 figures. Edited references. arXiv admin note: text overlap with arXiv:2003.09719
Elicitation of placenames
Creators: name: Parker, Verdena
name: Kelly, Christine
name: Spence, Justin
Publisher: name: California Language Archive, University of California, Berkeley
Year: 2020
Subjects: subject: hup

description: Audio file VP-120316-03: elicitation of placenames from the Collected Works of Edward Sapir (CWES) vol. 14, map C (page 1009), items 34-55.
Emergent Road Rules In Multi-Agent Driving Environments
Creators: name: Pal, Avik
name: Philion, Jonah
name: Liao, Yuan-Hong
name: Fidler, Sanja
Publisher: name: arXiv
Year: 2020
Subjects: subject: Machine Learning (cs.LG)
subject: Artificial Intelligence (cs.AI)
subject: Multiagent Systems (cs.MA)
subject: FOS: Computer and information sciences

description: For autonomous vehicles to safely share the road with human drivers, autonomous vehicles must abide by specific "road rules" that human drivers have agreed to follow. "Road rules" include rules that drivers are required to follow by law -- such as the requirement that vehicles stop at red lights -- as well as more subtle social rules -- such as the implicit designation of fast lanes on the highway. In this paper, we provide empirical evidence that suggests that -- instead of hard-coding road rules into self-driving algorithms -- a scalable alternative may be to design multi-agent environments in which road rules emerge as optimal solutions to the problem of maximizing traffic flow. We analyze what ingredients in driving environments cause the emergence of these road rules and find that two crucial factors are noisy perception and agents' spatial density. We provide qualitative and quantitative evidence of the emergence of seven social driving behaviors, ranging from obeying traffic signals to following lanes, all of which emerge from training agents to drive quickly to destinations without colliding. Our results add empirical support for the social road rules that countries worldwide have agreed on for safe, efficient driving.
description: International Conference on Learning Representations (2021)
Identification of Cosmic Voids as Massive Cluster Counterparts
Creators: name: Shim, Junsup
name: Park, Changbom
name: Kim, Juhan
name: Hwang, Ho Seong
Publisher: name: arXiv
Year: 2020
Subjects: subject: Cosmology and Nongalactic Astrophysics (astro-ph.CO)
subject: FOS: Physical sciences

description: We develop a method to identify cosmic voids from the matter density field by adopting a physically-motivated concept that voids are the counterpart of massive clusters. To prove the concept we use a pair of $Λ$CDM simulations, a reference and its initial density-inverted mirror simulation, and study the relation between the effective size of voids and the mass of corresponding clusters. Galaxy cluster-scale dark matter halos are identified in the Mirror simulation at $z=0$ by linking dark matter particles. The void corresponding to each cluster is defined in the Reference simulation as the region occupied by the member particles of the cluster. We study the voids corresponding to the halos more massive than $10^{13}h^{-1}M_{\odot}$. We find a power-law scaling relation between the void size and the corresponding cluster mass. Voids with corresponding cluster mass above $10^{15}h^{-1}M_{\odot}$ occupy $\sim1\%$ of the total simulated volume, whereas this fraction increases to $\sim54\%$ for voids with corresponding cluster mass above $10^{13}h^{-1}M_{\odot}$. It is also found that the density profile of the identified voids follows a universal functional form. Based on these findings, we propose a method to identify cluster-counterpart voids directly from the matter density field without their mirror information by utilizing three parameters such as the smoothing scale, density threshold, and minimum core fraction. We recover voids corresponding to clusters more massive than $3\times10^{14}h^{-1}M_{\odot}$ at 70--74 \% level of completeness and reliability. Our results suggest that we are able to identify voids in a way to associate them with clusters of a particular mass-scale.
description: Published in ApJ
The recurrence time of Dansgaard-Oeschger events and limits on the possible periodic component
Creators: name: Ditlevsen, Peter D.
name: Kristensen, Mikkel S.
name: Andersen, Katrine K.
Publisher: name: arXiv
Year: 2005
Subjects: subject: Chaotic Dynamics (nlin.CD)
subject: Atmospheric and Oceanic Physics (physics.ao-ph)
subject: FOS: Physical sciences

description: By comparing the high-resolution isotopic records from the GRIP and NGRIP icecores, we approximately separate the climate signal from local noise to obtain an objective criterion for defining Dansgaard-Oeschger events. Our analysis identifies several additional short lasting events, increasing the total number of DO events to 27 in the period 12-90 kyr BP. The quasi-regular occurrence of the DO events could indicate a stochastic or coherent resonance mechanism governing their origin. From the distribution of waiting times we obtain a statistical upper bound on the strength of a possible periodic forcing. This finding indicates that the climate shifts are purely noise driven with no underlying periodicity.
description: 9 figures
Geometrizing $T\bar{T}$
Creators: name: Caputa, Pawel
name: Datta, Shouvik
name: Jiang, Yunfeng
name: Kraus, Per
Publisher: name: arXiv
Year: 2020
Subjects: subject: High Energy Physics - Theory (hep-th)
subject: FOS: Physical sciences

description: The $T\bar{T}$ deformation can be formulated as a dynamical change of coordinates. We establish and generalize this relation to curved spaces by coupling the undeformed theory to 2d gravity. For curved space the dynamical change of coordinates is supplemented by a dynamical Weyl transformation. We also sharpen the holographic correspondence to cutoff AdS$_3$ in multiple ways. First, we show that the action of the annular region between the cutoff surface and the boundary of AdS$_3$ is given precisely by the $T\bar{T}$ operator integrated over either the cutoff surface or the asymptotic boundary. Then we derive dynamical coordinate and Weyl transformations directly from the bulk. Finally, we reproduce the flow equation for the deformed stress tensor from the cutoff geometry.
description: v2: 28 pages, published version
A Critical Account of the Relationship between Institutional Trust, Risk Perception, and Technology Acceptance with an Application to Genetically Modified Foods
Creators: name: Boecker, Andreas
name: Nocella, Giuseppe
name: Boecker, Andreas
name: Nocella, Giuseppe
Publisher: name: Unknown
Year: 2006
Subjects: subject: Food Consumption/Nutrition/Food Safety
subject: Institutional and Behavioral Economics
subject: consumer trust
subject: risk perception
subject: technology acceptance
subject: genetic modification

description: This article critically reflects on the widely held view of a causal chain with trust in public authorities impacting technology acceptance via perceived risk. It first puts forward conceptual reason against this view, as the presence of risk is a precondition for trust playing a role in decision making. Second, results from consumer surveys in Italy and Germany are presented that support the associationist model as counter hypothesis. In that view, trust and risk judgments are driven by and thus simply indicators of higher order attitudes toward a certain technology which determine acceptance instead. The implications of these findings are discussed.
Large-scale vortices and zonal flows in spherical rotating convection
Creators: name: Lin, Yufeng
name: Jackson, Andrew
Publisher: name: arXiv
Year: 2020
Subjects: subject: Fluid Dynamics (physics.flu-dyn)
subject: Solar and Stellar Astrophysics (astro-ph.SR)
subject: FOS: Physical sciences

description: Motivated by understanding the dynamics of stellar and planetary interiors, we have performed a set of direct numerical simulations of Boussinesq convection in a rotating full sphere. The domain is internally heated with fixed temperature and stress-free boundary conditions, but fixed heat flux and no-slip boundary conditions are also briefly considered. We particularly focus on the large-scale coherent structures and the mean zonal flows that can develop in the system. At Prandtl number of unity, as the thermal forcing (measured by the Rayleigh number) is increased above the value for the onset of convection, we find a relaxation oscillation regime, followed by a geostrophic turbulence regime. Beyond this we see for the first time the existence of large-scale coherent vortices that form on the rotation axis. All regime boundaries are well described by critical values of the convective Rossby number $Ro_c$, with transitions from oscillatory to geostrophic turbulence, and then to the large-scale vortex regime at values $Ro_c\approx 0.2$ and $Ro_c\approx 1.5$, respectively. The zonal flow is controlled by the convective Rossby number and changes its direction when the flow transitions from the geostrophic turbulence regime to the large-scale vortex regime. While the non-zonal flow speed and heat transfer can be described by the so-called inertial scaling in the geostrophic turbulence regime, the formation of large-scale vortices appears to reduce both the non-zonal flow speed and the efficiency of convective heat transfer.
description: Published in JFM. Figure 4(c) was misprinted in the published version. This version is corrected
The Forest
Creators: name: De Lazzari, Amelia
Publisher: name: Visions for Sustainability
Year: 2021

description: I am the Forest wild, ancient and sacred. I am the origin of the world in every seed, plant and leaf. Thousands of shades of green dominate my infinite inside, which contaminates every wrinkle in a time that here no longer exists. Only space, in its infinite dimensions, resonates in every color. It is the energy of the Earth That dominates the labyrinth of shapes that live within me, and here, as nowhere else, words, by magic, meet and there are strangers no more.
description: Visions for Sustainability, No 16 (2021) - In press
Caused Related Marketing: Between Solidarity and Competition within the Italian Agri-Food System
Creators: name: Vastola, Antonella P.
name: Vastola, Antonella P.
Publisher: name: Unknown
Year: 2006
Subjects: subject: Agribusiness
subject: cause related marketing
subject: agri-food system

description: Today's consumers demand products and services not only with proven intrinsic quality features but also endowed with non-material attributes such as respect for the environmental and ethical values. These concerns are central to recent marketing developments. Cause related marketing (CRM) is a good example of the new entrepreneurial strategies able to achieve on the one hand utilitarian aims and on the other hand to contribute to a social cause through different forms of company donation. From the analysis it emerges that in Italian agri-food system three types of agents are applying CRM: companies producing widely consumed brands, with high sales volume; small companies producing high quality goods but with brands known within a limited market area; mass distribution companies. The use and aims of CRM strategies are different for each of the actors.
Mass-to-Light Ratios of Galaxy Groups from Weak Lensing
Creators: name: Parker, Laura C.
name: Hudson, Michael J.
name: Carlberg, Ray G.
name: Hoekstra, Henk
Publisher: name: arXiv
Year: 2005
Subjects: subject: Astrophysics (astro-ph)
subject: FOS: Physical sciences

description: We present the findings of our weak lensing study of a sample of 116 CNOC2 galaxy groups. The lensing signal is used to estimate the mass-to-light ratio of these galaxy groups. The best fit isothermal sphere model to our lensing data has an Einstein radius of 0.88"+/-0.12", which corresponds to a shear-weighted velocity dispersion of 245+/-18 km/s. The mean mass-to-light ratio within 1 h^-1 Mpc is 185+/-28 h times solar in the B-band and is independent of radius from the group center. The signal-to-noise ratio of the shear measurement is sufficient to split the sample into subsets of "poor" and "rich" galaxy groups. The poor galaxy groups were found to have an average velocity dispersion of 193+/-38 km/s and a mass-to-light ratio of 134+/-26 h times solar in the B-band, while the rich galaxy groups have a velocity dispersion of 270+/-39 km/s and a mass-to-light ratio of 278+/-42 h times solar in the B-band, similar to the mass-to-light ratio of clusters. This steep increase in the mass-to-light ratio as a function of mass, suggests that the mass scale of ~10^13 solar masses is where the transition between the actively star-forming field environment and the passively-evolving cluster environment occurs. This is the first such detection from weak lensing.
description: Accepted for publication in ApJ 6 pages, 6 figures, uses emulateapj
NaturalAE: Natural and Robust Physical Adversarial Examples for Object Detectors
Creators: name: Xue, Mingfu
name: Yuan, Chengxiang
name: He, Can
name: Wang, Jian
name: Liu, Weiqiang
Publisher: name: arXiv
Year: 2020
Subjects: subject: Computer Vision and Pattern Recognition (cs.CV)
subject: FOS: Computer and information sciences

description: In this paper, we propose a natural and robust physical adversarial example attack method targeting object detectors under real-world conditions. The generated adversarial examples are robust to various physical constraints and visually look similar to the original images, thus these adversarial examples are natural to humans and will not cause any suspicions. First, to ensure the robustness of the adversarial examples in real-world conditions, the proposed method exploits different image transformation functions, to simulate various physical changes during the iterative optimization of the adversarial examples generation. Second, to construct natural adversarial examples, the proposed method uses an adaptive mask to constrain the area and intensities of the added perturbations, and utilizes the real-world perturbation score (RPS) to make the perturbations be similar to those real noises in physical world. Compared with existing studies, our generated adversarial examples can achieve a high success rate with less conspicuous perturbations. Experimental results demonstrate that, the generated adversarial examples are robust under various indoor and outdoor physical conditions, including different distances, angles, illuminations, and photographing. Specifically, the attack success rate of generated adversarial examples indoors and outdoors is high up to 73.33% and 82.22%, respectively. Meanwhile, the proposed method ensures the naturalness of the generated adversarial example, and the size of added perturbations is much smaller than the perturbations in the existing works. Further, the proposed physical adversarial attack method can be transferred from the white-box models to other object detection models.
Lifetime Measurements in the Even-Even $^{102-108}$Cd Isotopes
Creators: name: Siciliano, M.
name: Valiente-Dobón, J. J.
name: Goasduff, A.
name: Rodríguez, T. R.
name: Bazzacco, D.
name: Benzoni, G.
name: Braunroth, T.
name: Cieplicka-Oryńczak, N.
name: Clément, E.
name: Crespi, F. C. L.
name: de France, G.
name: Doncel, M.
name: Ertürk, S.
name: Fransen, C.
name: Gadea, A.
name: Georgiev, G.
name: Goldkuhle, A.
name: Jakobsson, U.
name: Jaworski, G.
name: John, P. R.
name: Kuti, I.
name: Lemasson, A.
name: Li, H.
name: Lopez-Martens, A.
name: Marchi, T.
name: Mengoni, D.
name: Michelagnoli, C.
name: Mijatović, T.
name: Müller-Gatermann, C.
name: Napoli, D. R.
name: Nyberg, J.
name: Palacz, M.
name: Pérez-Vidal, R. M.
name: Sayği, B.
name: Sohler, D.
name: Szilner, S.
name: Testov, D.
Publisher: name: arXiv
Year: 2021
Subjects: subject: Nuclear Experiment (nucl-ex)
subject: FOS: Physical sciences

description: The heaviest N=Z doubly-magic nucleus, $^{100}$Sn, and the neighboring nuclei offer unique opportunities to investigate the properties of nuclear interaction in extreme conditions. In particular, the Cd isotopes are expected to present features similar to those found in the Sn isotopic chain, since they have only two proton holes in the Z=50 shell. In this manuscript, the lifetime measurements of low-lying states in the even-mass $^{102-108}$Cd is presented. Thanks to the powerful detection capabilities of AGATA array and VAMOS++ spectrometer, the unusual employment of multi-nucleon transfer reactions permitted to investigate the first 2$^+$ and 4$^+$ states in all these nuclei, together with various deformed bands in $^{106}$Cd. The results were interpreted in the context of new state-of-the-art beyond-mean-field calculations, using the symmetry-conserving configuration-mixing approach. Despite the similarities in the electromagnetic properties of the low-lying states, there is a fundamental structural difference between the ground-state bands in the Z=48 and Z=50 isotopes. The comparison between experimental and theoretical results revealed a rotational character of the Cd nuclei, which have prolate-deformed ground states with $β_2 \approx 0.2$. At this deformation Z=48 becomes a closed-shell configuration, which is favored with respect to the spherical one.
description: V1 : 14 pages, 12 figures. V2 : 16 pages, 11 figures. V3 : 16 pages, 11 figures (figure 11 corrected); triaxiality evaluated with "quadrupole sum rule". submitted to Phys.Rev.C
Looking for Security-Oriented Information Systems: Risk Perception and Management in Italian Companies
Creators: name: Palmieri, Roberto
name: Volpentesta, Antonio P.
name: Palmieri, Roberto
name: Volpentesta, Antonio P.
Publisher: name: Unknown
Year: 2006
Subjects: subject: Agribusiness
subject: Risk and Uncertainty
subject: security-oriented information systems
subject: information security
subject: risk perception
subject: integrated planning model
subject: empirical results

description: This paper presents the results of an empirical investigation concerning the approaches adopted by Italian companies in dealing with information security issues. Such results are compared to an ideal, integrated information system planning approach where information needs and risk management are jointly taken into account. Data analysis shows that respondents ascribe to information security a rather high relevance for their business, and there is a formal conformity of business practices to the phases included in the proposed model, especially as far as high level, conceptual activities are concerned. Despite that, in the companies which have been examined, security systems appear to be still inadequate, especially as far as organizational issues are concerned.
Building Consumer's Trust through Persuasive Interpersonal Communication in a Saturated Market: The Role of Market Mavens
Creators: name: Puspa, Jofi
name: Kuhl, Rainer
name: Puspa, Jofi
name: Kuhl, Rainer
Publisher: name: Unknown
Year: 2006
Subjects: subject: Institutional and Behavioral Economics
subject: Marketing
subject: FOS: Economics and business

description: This study has aims i.e. (1) to investigate the role of inherent personal knowledge in affecting trust, (2) to investigate whether mavens play a role in improving recipient's knowledge level and trust. We have conducted a study, which involved a total of 134 students as respondents. Correlation between subjective knowledge and trust achieved a medium level, while objective knowledge related to trust at a very low level. Trust in the low-maven-group is the lowest in comparison with the medium- and high- mavens. This study indicates that there are different results in terms of effects of information provided by three different maven groups.
AdaBelief Optimizer: Adapting Stepsizes by the Belief in Observed Gradients
Creators: name: Zhuang, Juntang
name: Tang, Tommy
name: Ding, Yifan
name: Tatikonda, Sekhar
name: Dvornek, Nicha
name: Papademetris, Xenophon
name: Duncan, James S.
Publisher: name: arXiv
Year: 2020
Subjects: subject: Machine Learning (cs.LG)
subject: Computer Vision and Pattern Recognition (cs.CV)
subject: Machine Learning (stat.ML)
subject: FOS: Computer and information sciences

description: Most popular optimizers for deep learning can be broadly categorized as adaptive methods (e.g. Adam) and accelerated schemes (e.g. stochastic gradient descent (SGD) with momentum). For many models such as convolutional neural networks (CNNs), adaptive methods typically converge faster but generalize worse compared to SGD; for complex settings such as generative adversarial networks (GANs), adaptive methods are typically the default because of their stability.We propose AdaBelief to simultaneously achieve three goals: fast convergence as in adaptive methods, good generalization as in SGD, and training stability. The intuition for AdaBelief is to adapt the stepsize according to the "belief" in the current gradient direction. Viewing the exponential moving average (EMA) of the noisy gradient as the prediction of the gradient at the next time step, if the observed gradient greatly deviates from the prediction, we distrust the current observation and take a small step; if the observed gradient is close to the prediction, we trust it and take a large step. We validate AdaBelief in extensive experiments, showing that it outperforms other methods with fast convergence and high accuracy on image classification and language modeling. Specifically, on ImageNet, AdaBelief achieves comparable accuracy to SGD. Furthermore, in the training of a GAN on Cifar10, AdaBelief demonstrates high stability and improves the quality of generated samples compared to a well-tuned Adam optimizer. Code is available at https://github.com/juntang-zhuang/Adabelief-Optimizer
Kerner, Hanns: Luthertum und ökumenische Bewegung für Praktisches Christentum 1919-1926
Creators: name: Schmidt-Clausen, Kurt
Publisher: name: Ökumenische Rundschau
Year: 2025

description: Ökumenische Rundschau, Bd. 33 Nr. 2 (1984): Ökumenische Rundschau, Band 33, Heft 2
Merry Christmas, Stephen Leacock : a chamber opera for string quintet and three singers ; Concertino : for two pianos and percussion ; String Quartet #1 ; An excerpt from The Master’s Stroke : an opera for seven singers, chorus, and instrumental quintet
Creators: name: Weisensel, Neil Andrew
Publisher: name: University of British Columbia
Year: 2009

description: Four separate compositions make up this thesis. The chamber opera Merry Christmas Stephen Leacock is conceived as a one-act opera for film. There are three characters, portrayed by soprano, tenor and baritone voices, and musical support is provided by a string quintet with the following configuration: two violins, viola, and two cellos. The text, from a Leacock short story, was adapted into a libretto by writer Pamela Post. Composition of the work started in September 1997 and was completed in December of that same year. Revisions were completed by June of 1998. Total duration: ca. 18 min. The instrumental piece, Concertino, was started in October 1996 and finished June 1997. The musical forces required for this piece are two pianos and two percussionists playing the following, vibraphone, marimba, xylophone, toms, snare drum, and crotales. The piece is in four movements: I. Commotion II. Comfort III. Carnaval IV. Convergence/Confluence V. Coda Total duration: 18 min. 10 sec. The composition of String Quartet #1 (first movement of a set of variations on an original theme) was started in late February and completed on March 15, 1998. A theme from an earlier orchestral piece, Suite for Orchestra (1995), is developed in this quartet. Total duration: 4 min. 30 sec. The Master's Stroke is a 90-minute opera for seven main characters, SATB chorus, and chamber orchestra. The excerpt presented here is from Act I Scene I, and is scored for piano, cello, clarinet, violin and percussion. Composition commenced in earnest in January of 1999, and the score was completed in mid-April of that same year. Total duration: 10 min.
Universality behind Basquin's law of fatigue
Creators: name: Kun, F.
name: Carmona, H. A.
name: Andrade, J. S.
name: Herrmann, H. J.
Publisher: name: arXiv
Year: 2008
Subjects: subject: Materials Science (cond-mat.mtrl-sci)
subject: Disordered Systems and Neural Networks (cond-mat.dis-nn)
subject: FOS: Physical sciences

description: One of the most important scaling laws of time dependent fracture is Basquin's law of fatigue, namely, that the lifetime of the system increases as a power law with decreasing external load amplitude, $t_f\sim σ_0^{-α}$, where the exponent $α$ has a strong material dependence. We show that in spite of the broad scatter of the Basquin exponent $α$, the fatigue fracture of heterogeneous materials exhibits intriguing universal features. Based on stochastic fracture models we propose a generic scaling form for the macroscopic deformation and show that at the fatigue limit the system undergoes a continuous phase transition when changing the external load. On the microlevel, the fatigue fracture proceeds in bursts characterized by universal power law distributions. We demonstrate that in a range of systems, including deformation of asphalt, a realistic model of deformation, and a fiber bundle model, the system dependent details are contained in Basquin's exponent for time to failure, and once this is taken into account, remaining features of failure are universal.
description: 4 pages in Revtex, 4 figures, accepted by PRL
title: Australia-wide 3D Density and Magnetic Susceptibility Models: Method and Model Release
Creators: name: J., Goodwin
name: J., Goodwin
Publisher: name: Commonwealth of Australia (Geoscience Australia)
Year: 2024
Subjects: subject: Geophysical Acquisition and Processing Section
subject: Australian Resources Framework
subject: EFTF – Exploring for the Future
subject: Total Magnetic Intensity (TMI)
subject: gravity
subject: Magnetic Susceptibility
subject: density
subject: geophysical inversion
subject: UBC-GIF
subject: MAG3D
subject: GRAV3D
subject: full-crustal
subject: 3D model
subject: Magnetism and palaeomagnetism
subject: Gravimetrics
subject: Published_External

description: Two coincident, crustal-scale models, one of magnetic susceptibility and one of density, have been produced for a volume covering the Australian continent and extending down to 55.5 km depth. These models were produced using the UBC‑GIF MAG3D and GRAV3D inversion programs, respectively.
The inversions were constrained with geological reference models with layers for sediments, undifferentiated crust and the mantle. The reference model for the magnetic inversion incorporated a Curie depth surface below which magnetic susceptibility was set to zero.
Due to the size of the inversion problem to be solved, the volume was divided into 235 overlapping inversions, which were inverted separately and then recombined. The method of recombining the inversions relies on a cosine function to determine the weight of each property and then takes a weighted average. This method successfully attenuated the edge effects that would otherwise occur between models and allows them to be viewed as one seamless model that covers the whole of Australia.
Regions of coincident high-density (>2.83 g/cm3) and high-magnetic susceptibility (>0.0125 SI) within the top 8‑9 km of the undifferentiated crust are suggested to be related to ultramafic rocks and the magnetite-forming hydrothermal alteration stages of potentially fertile IOCG systems.

Due to their size, the models have been divided into subsets (labelled 1-17) for download.
Please refer to the image below for the extent of the subsets.
Interferences of electrostatic moiré potentials and bichromatic superlattices of electrons and excitons in transition metal dichalcogenides
Creators: name: Tong, Qingjun
name: Chen, Mingxing
name: Xiao, Feiping
name: Yu, Hongyi
name: Yao, Wang
Publisher: name: arXiv
Year: 2020
Subjects: subject: Mesoscale and Nanoscale Physics (cond-mat.mes-hall)
subject: Materials Science (cond-mat.mtrl-sci)
subject: FOS: Physical sciences

description: Recent experimental progresses have demonstrated the great potential of electronic and excitonic moiré superlattices in transition metal dichalcogenides (TMDs) for quantum many-body simulations and quantum optics applications. Here we reveal that the moiré potential landscapes in the TMDs heterostructures have an electrostatic origin from the spontaneous charge transfer across the heterointerfaces dependent on the atomic registry. This allows engineering tunable multi-chromatic superlattices through the interference of moiré potentials from independently configurable heterointerfaces in multilayers. We show examples of bichromatic moiré potentials for valley electrons, holes, and interlayer trions in MX2/M'X'2/MX2 trilayers, which can be strain switched from multi-orbital periodic superlattices to quasi-periodic disordered landscape. The trilayer moiré also hosts two independently configurable triangular superlattices of neutral excitons with opposite electric dipoles. These findings greatly enrich the versatility and controllability of TMDs moiré as a quantum simulation platform.
description: 20 pages, 4 figures
Massive One-loop Conformal Feynman Integrals and Quadratic Transformations of Multiple Hypergeometric Series
Creators: name: Ananthanarayan, B.
name: Banik, Sumit
name: Friot, Samuel
name: Ghosh, Shayan
Publisher: name: arXiv
Year: 2020
Subjects: subject: High Energy Physics - Theory (hep-th)
subject: High Energy Physics - Phenomenology (hep-ph)
subject: Mathematical Physics (math-ph)
subject: FOS: Physical sciences

description: The computational technique of $N$-fold Mellin-Barnes (MB) integrals, presented in a companion paper by the same authors, is used to derive sets of series representations of the massive one-loop conformal 3-point Feynman integral in various configurations. This shows the great simplicity and efficiency of the method in nonresonant cases (generic propagator powers) as well as some of its subtleties in the resonant ones (for unit propagator powers). We confirm certain results in the physics and mathematics literature and provide many new results, some of them dealing with the more general massive one-loop conformal $n$-point case. In particular, we prove two recent conjectures that give the massive one-loop conformal $n$-point integral (for generic propagator powers) in terms of multiple hypergeometric series. We show how these conjectures, that were deduced from a Yangian bootstrap analysis, are related by a tower of new quadratic transformations in Hypergeometric Functions Theory. Finally, we also use our MB method to identify spurious contributions that can arise in the Yangian approach.
description: Accepted in Phys. Rev. D. One section added. Typos corrected as well as several equations (mainly in Section 5). 30 pages, 6 figures
Spin-wave dispersion and exchange stiffness in Nd$_2$Fe$_{14}$B and $R$Fe$_{11}$Ti ($R$=Y, Nd, Sm) from first-principles calculations
Creators: name: Fukazawa, Taro
name: Akai, Hisazumi
name: Harashima, Yosuke
name: Miyake, Takashi
Publisher: name: arXiv
Year: 2020
Subjects: subject: Materials Science (cond-mat.mtrl-sci)
subject: FOS: Physical sciences

description: We theoretically investigate spin-wave dispersion in rare-earth magnet compounds by using first-principles calculations and a method we call the reciprocal-space algorithm (RSA). The value of the calculated exchange stiffness for Nd$_2$Fe$_{14}$B is within the range of reported experimental values. We find that the exchange stiffness is considerably anisotropic when only short-range exchange couplings are considered, whereas inclusion of long-range couplings weakens the anisotropy. In contrast, $R$Fe$_{11}$Ti ($R$=Y, Nd, Sm) shows large anisotropy in the exchange stiffness.
description: 8 pages, 6 figures
Fermionic Vector Model Solitons in the Large N Limit
Creators: name: Ferrer, Phil
Publisher: name: arXiv
Year: 2005
Subjects: subject: High Energy Physics - Theory (hep-th)
subject: FOS: Physical sciences

description: The large N limit of fermionic vectors models is studied using bilocal variables, in the framework of a collective field theory approach. The large N configuration is determined completely using only classical solutions of the model. Further, the Bethe-Salpeter equations of the model are cast as a Green's function problem. One of the main results of this work is to show that this Green's function is in fact the large N bilocal itself.
description: 11+1 pages; uses harvmac
Video Compression with CNN-based Post Processing
Creators: name: Zhang, Fan
name: Ma, Di
name: Feng, Chen
name: Bull, David R.
Publisher: name: arXiv
Year: 2020
Subjects: subject: Image and Video Processing (eess.IV)
subject: Artificial Intelligence (cs.AI)
subject: FOS: Electrical engineering, electronic engineering, information engineering
subject: FOS: Computer and information sciences

description: In recent years, video compression techniques have been significantly challenged by the rapidly increased demands associated with high quality and immersive video content. Among various compression tools, post-processing can be applied on reconstructed video content to mitigate visible compression artefacts and to enhance overall perceptual quality. Inspired by advances in deep learning, we propose a new CNN-based post-processing approach, which has been integrated with two state-of-the-art coding standards, VVC and AV1. The results show consistent coding gains on all tested sequences at various spatial resolutions, with average bit rate savings of 4.0% and 5.8% against original VVC and AV1 respectively (based on the assessment of PSNR). This network has also been trained with perceptually inspired loss functions, which have further improved reconstruction quality based on perceptual quality assessment (VMAF), with average coding gains of 13.9% over VVC and 10.5% against AV1.
Lagrangian heat transport in turbulent three-dimensional convection
Creators: name: Vieweg, Philipp P.
name: Schneide, Christiane
name: Padberg-Gehle, Kathrin
name: Schumacher, Jörg
Publisher: name: arXiv
Year: 2020
Subjects: subject: Fluid Dynamics (physics.flu-dyn)
subject: FOS: Physical sciences

description: Spatial regions that do not mix effectively with their surroundings and thus contribute less to the heat transport in fully turbulent three-dimensional Rayleigh-Bénard flows are identified by Lagrangian trajectories that stay together for a longer time. These trajectories probe Lagrangian coherent sets (CS) which we investigate here in direct numerical simulations in convection cells with square cross section of aspect ratio $Γ= 16$, Rayleigh number $Ra = 10^{5}$, and Prandtl numbers $Pr = 0.1, 0.7$ and $7$. The analysis is based on $N=524,288$ Lagrangian tracer particles which are advected in the time-dependent flow. Clusters of trajectories are identified by a graph Laplacian with a diffusion kernel, which quantifies the connectivity of trajectory segments, and a subsequent sparse eigenbasis approximation (SEBA) for cluster detection. The combination of graph Laplacian and SEBA leads to a significantly improved cluster identification that is compared with the large-scale patterns in the Eulerian frame of reference. We show that the detected CS contribute by a third less to the global turbulent heat transport for all investigated $Pr$ compared to the trajectories in the spatial complement. This is realized by monitoring Nusselt numbers along the tracer trajectory ensembles, a dimensionless local measure of heat transfer.
description: 8 pages, 5 figures
Analyzing the $H_0$ tension in $F(R)$ gravity models
Creators: name: Odintsov, Sergei D.
name: Gómez, Diego Sáez-Chillón
name: Sharov, German S.
Publisher: name: arXiv
Year: 2020
Subjects: subject: General Relativity and Quantum Cosmology (gr-qc)
subject: Cosmology and Nongalactic Astrophysics (astro-ph.CO)
subject: FOS: Physical sciences

description: The Hubble constant tension problem is analysed in the framework of a class of modified gravity, the so-called $F(R)$ gravity. To do so, we explore two models: an exponential and a power-law $F(R)$ gravities, which includes an early dark energy (EDE) term in the latter. These models can describe both an early time inflationary epoch and the late time accelerating expansion of the universe. We confront both models with recent observational data including the Pantheon Type Ia supernovae sample, the latest measurements of the Hubble parameter $H(z)$ from differential ages of galaxies (cosmic chronometers) and separately from baryon acoustic oscillations. Standard rulers data set from the Cosmic Microwave Background radiation are also included in our analysis. The estimations of the Hubble constant appear to be essentially depending on the set of observational data and vary in the range from 68 to 70{.}3 km\,/(s$\cdot$Mpc). The fits of the other free parameters of the models are also obtained, revealing interesting consequences.
description: 14 pages, 4 figures, 2 tables. Version to be published in NPB
Grammatical elicitation: Subject and object relative clauses
Creators: name: Ruiz, Wendy
name: Laparle, Schuyler
name: Lemon, Tyler
name: Michael, Lev
name: Schwarz, Martha
name: Dos Santos, Wesley
Publisher: name: California Language Archive, University of California, Berkeley
Year: 2020
Subjects: subject: mam

description: Lead elicitor Nascimento, scribe Schwarz, clean copy Lemon
Heisenberg spin chain as a worldsheet coordinate for lightcone quantized string
Creators: name: Thorn, Charles B.
Publisher: name: arXiv
Year: 2020
Subjects: subject: High Energy Physics - Theory (hep-th)
subject: FOS: Physical sciences

description: Although the energy spectrum of the Heisenberg spin chain on a circle defined by $H=\frac{1}{4}\sum_{k=1}^M(σ_k^xσ_{k+1}^x+σ_k^yσ_{k+1}^y +Δσ_k^zσ_{k+1}^z)$ is well known for any fixed $M$, the boundary conditions vary according to whether $M\in 4\mathbb{N}+r$, where $r=-1,0,1,2$, and also according to the parity of the number of overturned spins in the state, In string theory all these cases must be allowed because interactions involve a string with $M$ spins breaking into strings with $M_1
description: 27 pages, footnote added and typos corrected
Study of Excited $Ξ$ Baryons with the PANDA Detector
Creators: name: PANDA Collaboration
Publisher: name: arXiv
Year: 2020
Subjects: subject: High Energy Physics - Experiment (hep-ex)
subject: FOS: Physical sciences

description: The study of baryon excitation spectra provides insight into the inner structure of baryons. So far, most of the world-wide efforts have been directed towards $N^*$ and $Δ$ spectroscopy. Nevertheless, the study of the double and triple strange baryon spectrum provides independent information to the $N^*$ and $Δ$ spectra. The future antiproton experiment PANDA will provide direct access to final states containing a $\barΞΞ$ pair, for which production cross sections up to $μ$b are expected in $\bar{p}p$ reactions. With a luminosity of $L=10^{31}\,cm^{-2}s^{-1}$ in the first phase of the experiment, the expected cross sections correspond to a production rate of $\sim 10^6$ events$/$day. With a nearly $4π$ detector acceptance, PANDA will thus be a hyperon factory. In this study, reactions of the type $\bar{p}p\rightarrow \barΞ^+ Ξ^{*-}$ as well as $\bar{p}p\rightarrow \barΞ^{*+} Ξ^{-}$ with various decay modes are investigated. For the exclusive reconstruction of the signal events a full decay tree fit is used, resulting in reconstruction efficiencies between $3\,\%$ and $5\,\%$. This allows high statistics data to be collected within a few weeks of data taking.
description: 20 pages, 16 figures, corrections/changes according to the comments from the journal referees
The sum of the masses of the Milky Way and M31: a likelihood-free inference approach
Creators: name: Lemos, Pablo
name: Jeffrey, Niall
name: Whiteway, Lorne
name: Lahav, Ofer
name: Libeskind, Niam I
name: Hoffman, Yehuda
Publisher: name: arXiv
Year: 2020
Subjects: subject: Astrophysics of Galaxies (astro-ph.GA)
subject: Cosmology and Nongalactic Astrophysics (astro-ph.CO)
subject: Instrumentation and Methods for Astrophysics (astro-ph.IM)
subject: FOS: Physical sciences

description: We use Density Estimation Likelihood-Free Inference, $Λ$ Cold Dark Matter simulations of $\sim 2M$ galaxy pairs, and data from Gaia and the Hubble Space Telescope to infer the sum of the masses of the Milky Way and Andromeda (M31) galaxies, the two main components of the Local Group. This method overcomes most of the approximations of the traditional timing argument, makes the writing of a theoretical likelihood unnecessary, and allows the non-linear modelling of observational errors that take into account correlations in the data and non-Gaussian distributions. We obtain an $M_{200}$ mass estimate $M_{\rm MW+M31} = 4.6^{+2.3}_{-1.8} \times 10^{12} M_{\odot}$ ($68 \%$ C.L.), in agreement with previous estimates both for the sum of the two masses and for the individual masses. This result is not only one of the most reliable estimates of the sum of the two masses to date, but is also an illustration of likelihood-free inference in a problem with only one parameter and only three data points.
description: 14 pages, 9 figures. Accepted by Physical Review D
Probing $μ$eV ALPs with future LHAASO observation of AGN $γ$-ray spectra
Creators: name: Long, Guangbo
name: Chen, Siyu
name: Xu, Shuo
name: Zhang, Hong-Hao
Publisher: name: arXiv
Year: 2021
Subjects: subject: High Energy Astrophysical Phenomena (astro-ph.HE)
subject: Cosmology and Nongalactic Astrophysics (astro-ph.CO)
subject: High Energy Physics - Phenomenology (hep-ph)
subject: FOS: Physical sciences

description: Axion-like particles (ALPs) are predicted in some well-motivated theories beyond the Standard Model. The TeV gamma-rays from active galactic nuclei (AGN) suffer attenuation by the pair production interactions with the cosmic background light (EBL/CMB) during its travel to the earth. The attenuation can be circumvented through photon-ALP conversions in the AGN and Galaxy magnetic-field, and a flux enhancement is expected to arise in the observed spectrum. In this work, we study the potential of the AGN gamma-ray spectrum for energy up to above 100\,TeV to probe ALP-parameter space at around $μ$eV, where the coupling $g_{aγ}$ is so far relatively weakly constrained. We find the nearby and bright sources, Mrk\,501, IC\,310 and M\,87, are suitable for our objective. Assuming an intrinsic spectrum exponential cutoff energy, we extrapolate the observed spectra of these sources up to above 100\,TeV by the models with/without ALPs. For $g_{aγ}\gtrsim 2\times$$10^{-11} \rm GeV^{-1}$ with $m_{a}\lesssim0.5\,μ$eV, the flux at around 100\,TeV predicted by the ALP model can be enhanced more than an order of magnitude than that from the standard absorption, and could be detected by LHAASO. Our result is subject to the uncertainty from the intrinsic cutoff energy and the AGN lobe (or plume) magnetic-field. For an optimistic estimation, the constraint can be improved to $g_{aγ}\gtrsim 2\times$$10^{-11} \rm GeV^{-1}$ with $m_{a}\lesssim1\,μ$eV. This require further observations on these sources by the forthcoming CTA, LHAASO, SWGO and so on.
description: 14 pages, 7 figures, accepted for publication in Physical Review D
Quantum Zeno and anti-Zeno effects in an Unstable System with Two Bound State
Creators: name: Modi, Kavan
name: Shaji, Anil
Publisher: name: arXiv
Year: 2005
Subjects: subject: Quantum Physics (quant-ph)
subject: FOS: Physical sciences

description: We analyze the experimental observations reported by Fischer et. al. [in Phys. Rev. Lett. 87, 040402 (2001)] by considering a system of coupled unstable bound quantum states A and B. The state B is coupled to a set of continuum states C. We investigate the time evolution of A when it decays into C via B, and find that frequent measurements on A leads to both the quantum Zeno effect and the anti-Zeno effects depending on the frequency of measurements. We show that it is the presence of B which allows for the anti-Zeno effect.
description: v3: 7 pages, 5 figures. Published in Physics Letters A
Analysis and fabrication of a photonic crystal based anti-reflective coating for photovoltaics generated by evolutionary optimization
Creators: name: Bennet, Pauline
name: Juillet, Perrine
name: Ibrahim, Sara
name: Berhier, Vincent
name: Barry, Mamadou Aliou
name: Réveret, François
name: Bousquet, Angélique
name: Teytaud, Olivier
name: Centeno, Emmanuel
name: Moreau, Antoine
Publisher: name: arXiv
Year: 2020
Subjects: subject: Optics (physics.optics)
subject: Applied Physics (physics.app-ph)
subject: FOS: Physical sciences

description: We optimize multilayered anti-reflective coatings for photovoltaic devices, using modern evolutionary algorithms. We apply a rigorous methodology to show that a given structure, which is particularly regular, emerge spontaneously in a very systematical way for a very broad range of conditions. The very regularity of the structure allows for a thorough physical analysis of how the designs operate. This allows to understand that the central part is a photonic crystal utilized as a buffer for light, and that the external layers have the purpose of reducing the impedance mismatch between the outer media and the Bloch mode supported by the photonic crystal. This shows how optimization can suggest new design rules and be considered as a source of inspiration. Finally, we fabricate these structures with easily deployable techniques.