cometadata/datacite-rtg-text-other-reclassification-records huggingface dataset:
Quantum repeater using three-level atomic states in the presence of dissipation: stability of entanglement
Creators: name: Ghasemi, M
name: Tavassoly, MK
Publisher: name: arXiv
Year: 2021
Subjects: subject: Quantum Physics (quant-ph)
subject: Atomic and Molecular Clusters (physics.atm-clus)
subject: Atomic Physics (physics.atom-ph)
subject: FOS: Physical sciences

description: In this paper we want to investigate the possibility of transferring entanglement to two three-level separable atomic states over large distance using the quantum repeater protocol. In detail, our model consists of eight three-level atoms where only the pairs (1,2), (3,4), (5,6) and (7,8) are prepared in maximally entangled states. Performing suitable interaction between non-entangled three-level atoms (2,3) and (6,7) in two-mode cavities with photon leakage rates in the presence of spontaneous emission leads to producing entanglement between atoms (1,4) and (5,8), separately. Finally, the entanglement between atoms (1,8) is successfully produced by performing interaction between atoms (4,5) while spontaneous emission is considered in a dissipative cavity. In the continuation, the effects of detuning, dissipation and initial interaction time are considered on negativity and success probability of the processes. The maxima of negativity are decreased by increasing the detuning, in most cases. Also, the time evolution of negativity is non-periodic in the presence of dissipation. Increasing the initial interaction time has a constructive effect on negativity in all considered cases. The oscillations of negativity are destroyed as time goes on and the produced entanglement is stabled. The success probability of entangled state of atoms (1,8) is tunable by controlling the detuning and dissipation. We show that via justifying the involved parameters one can arrive at conditions in which the decoherence effects are fully disappeared; as a result an ideal quantum repeater can be achieved while atomic and field dissipations are taken into account.
Quanto Option Pricing
Creators: name: Lee, David
Publisher: name: Zenodo
Year: 2021
Subjects: quanto option, quanto feature, quanto forward

description: A quanto option is an option whose payout is made in a currency other than that of the underlying security, based on a fixed exchange rate. The term “quanto” is abbreviation for “quantity adjusted” that refers to the feature where the payoff of an option is determined by the financial price of index in one currency but the actual payout if realized in another currency.
description: https://ia903402.us.archive.org/15/items/eq-quanto-14/EqQuanto-archive.pdf
Spectral analysis of high resolution near-infrared spectra of ultra cool dwarfs
Creators: name: Lyubchik, Yu.
name: Jones, H. R. A.
name: Pavlenko, Ya. V.
name: Martin, E.
name: McLean, I. S.
name: Prato, L.
name: Barber, R. J.
name: Tennyson, J.
Publisher: name: arXiv
Year: 2007
Subjects: subject: Astrophysics (astro-ph)
subject: FOS: Physical sciences

description: We present an analysis of high resolution spectra in the J band of five ultra cool dwarfs from M6 to L0. A new ab initio water vapour line list and existing line lists of FeH and CrH were used for spectra modelling. We find a good fit for the Mn I 12899.76 A line. This feature is one of the few for which we have a reliable oscillator strength. Other atomic features are present but most of the observed features are FeH and water lines. While we are uncertain about the quality of many of the atomic line parameters, the FeH and CrH line lists predict a number of features which are not apparent in our observed spectra. We infer that the main limiting factor in our spectral analysis is the FeH and CrH molecular spectra.
description: 11 pages, 9 figures, 4 tables; accepted for publication in the Astron. and Astrophys
Tunable dual-comb spectrometer for mid-infrared trace gas analysis from 3 to 4.7 μm
Creators: name: Nitzsche, Leonard
name: Goldschmidt, Jens
name: Kiessling, Jens
name: Wolf, Sebastian
name: Kühnemann, Frank
name: Wöllenstein, Jürgen
Publisher: name: arXiv
Year: 2021
Subjects: subject: Optics (physics.optics)
subject: Applied Physics (physics.app-ph)
subject: FOS: Physical sciences

description: Dual-frequency comb spectroscopy has emerged as a disruptive technique for measuring wide-spanning spectra with high resolution, yielding a particularly powerful technique for sensitive multi-component gas analysis. We present a spectrometer system based on dual electro-optical combs with subsequent conversion to the mid-infrared via tunable difference frequency generation, operating in the range from 3 to 4.7 $μ$m. The simultaneously recorded bandwidth is up to 454(1) GHz and a signal-to-noise ratio of 7.3(2) x 10$^2$ Hz$^{-1/2}$ can be reached. The conversion preserves the coherence of the dual-comb within 3 s measurement time. Concentration measurements of 5 ppm methane at 3.3 $μ$m, 100 ppm nitrous oxide at 3.9 $μ$m and a mixture of 15 ppm carbon monoxide and 5 % carbon dioxide at 4.5 $μ$m are presented with a relative precision of 1.4 % in average after 2 s measurement time. The noise-equivalent absorbance is determined to be less than 4.6(2) x 10$^{-3}$ Hz$^{-1/2}$.
description: 12 pages, 6 figures
Students’ Meaningful Learning Experiences and Identity Formation in the UIC STEM Initiative CoLab Program
Creators: name: Wierzchowski, Adrian
Publisher: name: University of Illinois at Chicago
Year: 2024

description: This dissertation discusses students’ meaningful learning experiences and science identity formation in a workshop-based undergraduate research experience known as the UIC STEM Initiative CoLab Program. The theoretical frameworks of meaningful learning and situated cognition and the methodological framework of phenomenography are used to describe how students understand the research process, the process of doing science, and the poster creation and presentation process. In a subsequent study, students’ understanding of the research process and the poster creation and presentation process is connected to the Science and Engineering Practices and additional science practices deemed as important to the students’ experiences: creativity, failure, and contributing to future work.
Students’ understanding of the process of doing science is elaborated in another study with themes of How Students Viewed the Structure and Methods of Conducting Science and How Students Viewed the Psychosocial Elements of Science detailed in a nature of science (NOS) outcome space using VNOS-C survey and interview data. Phenomenography is used to create an outcome space for students’ science identity with themes of How Students Viewed Their Integration into the Science Community and How Students Viewed Their Scientific Skill Progression. Students’ NOS conceptions are related to their science identity.
In a longitudinal study utilizing a control group, CoLab students’ sense of belonging, science identity, and nature of science conceptions are detailed in the summer of 2023, fall 2023, and spring 2024 and compared to those outcomes for students taking a traditional chemistry lab course in fall 2023 and spring 2024. CoLab students displayed a greater sense of belonging to the science community during the fall, but traditional chemistry students and CoLab students showed similar levels of belonging in the spring. Despite similar levels of self-recognition and competence, CoLab students performed their scientific knowledge in more authentic environments and received more recognition from others as being science people. Greater numbers of CoLab students also participated in research. CoLab students displayed a statistically significant difference in NOS views in the fall for the survey compared to traditional chemistry lab students and a statistically significant difference in NOS views in the spring for their interview responses.
Semi-Supervised Segmentation of Concrete Aggregate Using Consensus Regularisation and Prior Guidance
Creators: name: Coenen, Max
name: Schack, Tobias
name: Beyer, Dries
name: Heipke, Christian
name: Haist, Michael
Publisher: name: arXiv
Year: 2021
Subjects: subject: Computer Vision and Pattern Recognition (cs.CV)
subject: FOS: Computer and information sciences

description: In order to leverage and profit from unlabelled data, semi-supervised frameworks for semantic segmentation based on consistency training have been proven to be powerful tools to significantly improve the performance of purely supervised segmentation learning. However, the consensus principle behind consistency training has at least one drawback, which we identify in this paper: imbalanced label distributions within the data. To overcome the limitations of standard consistency training, we propose a novel semi-supervised framework for semantic segmentation, introducing additional losses based on prior knowledge. Specifically, we propose a light-weight architecture consisting of a shared encoder and a main decoder, which is trained in a supervised manner. An auxiliary decoder is added as additional branch in order to make use of unlabelled data based on consensus training, and we add additional constraints derived from prior information on the class distribution and on auto-encoder regularisation. Experiments performed on our "concrete aggregate dataset" presented in this paper demonstrate the effectiveness of the proposed approach, outperforming the segmentation results achieved by purely supervised segmentation and standard consistency training.
Structure of hard-hypersphere fluids in odd dimensions
Creators: name: Rohrmann, Rene D.
name: Santos, Andres
Publisher: name: arXiv
Year: 2007
Subjects: subject: Statistical Mechanics (cond-mat.stat-mech)
subject: Soft Condensed Matter (cond-mat.soft)
subject: Chemical Physics (physics.chem-ph)
subject: FOS: Physical sciences

description: The structural properties of single component fluids of hard hyperspheres in odd space dimensionalities $d$ are studied with an analytical approximation method that generalizes the Rational Function Approximation earlier introduced in the study of hard-sphere fluids [S. B. Yuste and A. Santos, Phys. Rev. A {\bf 43}, 5418 (1991)]. The theory makes use of the exact form of the radial distribution function to first order in density and extends it to finite density by assuming a rational form for a function defined in Laplace space, the coefficients being determined by simple physical requirements. Fourier transform in terms of reverse Bessel polynomials constitute the mathematical framework of this approximation, from which an analytical expression for the static structure factor is obtained. In its most elementary form, the method recovers the solution of the Percus-Yevick closure to the Ornstein-Zernike equation for hyperspheres at odd dimension. The present formalism allows one to go beyond by yielding solutions with thermodynamic consistency between the virial and compressibility routes to any desired equation of state. Excellent agreement with available computer simulation data at $d=5$ and $d=7$ is obtained. As a byproduct of this study, an exact and explicit polynomial expression for the intersection volume of two identical hyperspheres in arbitrary odd dimensions is given.
description: 18 pages, 7 figures; v2: new references added plus minor changes; to be published in PRE
Finite Temperature Casimir Effect for a Massless Fractional Klein-Gordon field with Fractional Neumann Conditions
Creators: name: Eab, C. H.
name: Lim, S. C.
name: Teo, L. P.
Publisher: name: arXiv
Year: 2008
Subjects: subject: High Energy Physics - Theory (hep-th)
subject: FOS: Physical sciences

description: This paper studies the Casimir effect due to fractional massless Klein-Gordon field confined to parallel plates. A new kind of boundary condition called fractional Neumann condition which involves vanishing fractional derivatives of the field is introduced. The fractional Neumann condition allows the interpolation of Dirichlet and Neumann conditions imposed on the two plates. There exists a transition value in the difference between the orders of the fractional Neumann conditions for which the Casimir force changes from attractive to repulsive. Low and high temperature limits of Casimir energy and pressure are obtained. For sufficiently high temperature, these quantities are dominated by terms independent of the boundary conditions. Finally, validity of the temperature inversion symmetry for various boundary conditions is discussed.
description: 31 pages
The Formation and Evolution of Planetary Systems: Description of the Spitzer Legacy Science Database
Creators: name: Carpenter, John M.
name: Bouwman, Jeroen
name: Silverstone, Murray D.
name: Kim, Jinyoung Serena
name: Stauffer, John
name: Cohen, Martin
name: Hines, Dean C.
name: Meyer, Michael R.
name: Crockett, Nathan
Publisher: name: arXiv
Year: 2008
Subjects: subject: Astrophysics (astro-ph)
subject: FOS: Physical sciences

description: We present the science database produced by the Formation and Evolution of Planetary Systems (FEPS) Spitzer Legacy program. Data reduction and validation procedures for the IRAC, MIPS, and IRS instruments are described in detail. We also derive stellar properties for the FEPS sample from available broad-band photometry and spectral types, and present an algorithm to normalize Kurucz synthetic spectra to optical and near-infrared photometry. The final FEPS data products include IRAC and MIPS photometry for each star in the FEPS sample and calibrated IRS spectra.
description: 64 pages, 12 figures, 5 tables; accepted for publication in ApJS
Code, data sets, and experiment data for the AAAI 2022 Paper "Explainable Planner Selection for Classical Planning"
Creators: name: Ferber, Patrick
name: Seipp, Jendrik
Publisher: name: Zenodo
Year: 2022
Subjects: Planning, Portfolios, Machine Learning

description: This repository contains the code, data sets, and experiment data for the AAAI 2022 paper "Explainable Planner Selection for Classical Planning" by Patrick Ferber and Jendrik Seipp.
title: Stock markets as a network: from description to inference
Creators: name: Esposito, Marcello
Publisher: name: Università Carlo Cattaneo - LIUC
Year: 2021
Subjects: subject: FOS: Economics and business

description: Università Cattaneo Working Papers no. 10, 2021
description: Among the statistical techniques used to describe the behaviour of the financial markets, one of the most promising is based on the network analysis of the stock market. In this framework, the stock market is represented as a graph with nodes (the single stocks), edges (connections between stocks), and attributes (industry classification, volumes ...). The application of network analysis to the stock market is not new, but in previous contributions the market graph has been mainly derived from the correlationmatrix of the stock prices. This is a limitation, and the risks are to express in different words what traditional financial econometrics has already said about the returns’ distribution. Moreover, if we want to use network analysis not only as a descriptive tool but also as an inference instrument, we need other data than the correlation matrix itself. For this reason, we integrated the analysis and built the market graph with new type of data taken from the observation of the information gathering activity performed by retail investors through the Google’s search engine. We focussed the attention on financial crises, when a shock hits the economy in such a profound way that almost all the parameters entering the pricing equation of stocks must be reassessed. Those periods are relatively rare and short. They are characterised by extremely high levels of volatility and correlation. In these moments, searching for new information becomes of paramount importance. And then it is in these moments that we expect to observe more neatly the working of the underlying network.
description: Università Cattaneo Working Papers no. 10, 2021
The discovery of a highly accreting, radio-loud quasar at z=6.82
Creators: name: Banados, Eduardo
name: Mazzucchelli, Chiara
name: Momjian, Emmanuel
name: Eilers, Anna-Christina
name: Wang, Feige
name: Schindler, Jan-Torge
name: Connor, Thomas
name: Andika, Irham Taufik
name: Barth, Aaron J.
name: Carilli, Chris
name: Davies, Frederick B.
name: Decarli, Roberto
name: Fan, Xiaohui
name: Farina, Emanuele Paolo
name: Hennawi, Joseph F.
name: Pensabene, Antonio
name: Stern, Daniel
name: Venemans, Bram P.
name: Wenzl, Lukas
name: Yang, Jinyi
Publisher: name: arXiv
Year: 2021
Subjects: subject: Cosmology and Nongalactic Astrophysics (astro-ph.CO)
subject: Astrophysics of Galaxies (astro-ph.GA)
subject: FOS: Physical sciences

description: Radio sources at the highest redshifts can provide unique information on the first massive galaxies and black holes, the densest primordial environments, and the epoch of reionization. The number of astronomical objects identified at z>6 has increased dramatically over the last few years, but previously only three radio-loud (R2500>10) sources had been reported at z>6, with the most distant being a quasar at z=6.18. Here we present the discovery and characterization of P172+18, a radio-loud quasar at z=6.823. This source has an MgII-based black hole mass of ~3x10^8 Msun and is one of the fastest accreting quasars, consistent with super-Eddington accretion. The ionized region around the quasar is among the largest measured at these redshifts, implying an active phase longer than the average lifetime of the z>6 quasar population. From archival data, there is evidence that its 1.4 GHz emission has decreased by a factor of two over the last two decades. The quasar's radio spectrum between 1.4 and 3.0 GHz is steep (alpha=-1.31) and has a radio-loudness parameter R2500~90. A second steep radio source (alpha=-0.83) of comparable brightness to the quasar is only 23.1" away (~120 kpc at z=6.82; projection probability <2%), but shows no optical or near-infrared counterpart. Further follow-up is required to establish whether these two sources are physically associated.
description: submitted to ApJ on Nov 29, 2020; accepted on Jan 31, 2021. See the companion paper by Momjian et al
Comparative image simulations for phase-plate transmission electron microscopy
Creators: name: Hettler, Simon
name: Arenal, Raul
Publisher: name: arXiv
Year: 2021
Subjects: subject: Instrumentation and Detectors (physics.ins-det)
subject: FOS: Physical sciences

description: Numerous physical phase plates (PP) for phase-contrast enhancement in transmission electron microscopy (TEM) have been proposed and studied with the hole-free or Volta PP having a high impact and interest in recent years. This study is concerned with comparative TEM image simulations considering realistic descriptions of various PP approaches and samples from three different fields of application covering a large range of object sizes. The simulated images provide an illustrative characterization of the typical image appearance and common artifacts of the dfferent PPs and the influence of simulation parameters especially important for PP simulations. A quantitative contrast analysis shows the superior phase-shifting properties of the hole-free phase plate for biological applications and the benefits of adjustable phase plates. The application of PPs in high-resolution TEM imaging, especially of weak-phase objects such as (atomically thin) 2D materials, is shown to increase image interpretability. The software with graphical user interface written and used for the presented simulations is available for free usage.
How emoji and word embedding helps to unveil emotional transitions during online messaging
Creators: name: Mostafavi, Moeen
name: Porter, Michael D.
Publisher: name: arXiv
Year: 2021
Subjects: subject: Human-Computer Interaction (cs.HC)
subject: Computation and Language (cs.CL)
subject: Social and Information Networks (cs.SI)
subject: Systems and Control (eess.SY)
subject: FOS: Computer and information sciences
subject: FOS: Electrical engineering, electronic engineering, information engineering

description: During online chats, body-language and vocal characteristics are not part of the communication mechanism making it challenging to facilitate an accurate interpretation of feelings, emotions, and attitudes. The use of emojis to express emotional feeling is an alternative approach in these types of communication. In this project, we focus on modeling a customer's emotion in an online messaging session with a chatbot. We use Affect Control Theory (ACT) to predict emotional change during the interaction. To let the customer use emojis, we also extend the affective dictionaries used by ACT. For this purpose, we mapped Emoji2vec embedding to the affective space. Our framework can find emotional change during messaging and how a customer's reaction is changed accordingly.
Eigen electric moments of magnetic-dipolar modes in quasi-2D ferrite disk particles
Creators: name: Sigalov, M.
name: Kamenetskii, E. O.
name: Shavit, R.
Publisher: name: arXiv
Year: 2007
Subjects: subject: Materials Science (cond-mat.mtrl-sci)
subject: Mesoscale and Nanoscale Physics (cond-mat.mes-hall)
subject: FOS: Physical sciences

description: A property associated with a vortex structure becomes evident from an analysis of confinement phenomena of magnetic oscillations in a quasi-2D ferrite disk with a dominating role of magnetic-dipolar (non-exchange-interaction) spectra. The vortices are guaranteed by the chiral edge states of magnetic-dipolar modes which result in appearance of eigen electric moments oriented normally to the disk plane. Due to the eigen-electric-moment properties, a ferrite disk placed in a microwave cavity is strongly affected by the cavity RF electric field with a clear evidence for multi-resonance oscillations. For different cavity parameters, one may observe the "resonance absorption" and "resonance repulsion" behaviors.
Finite temperature Casimir energy in closed rectangular cavities: a rigorous derivation based on zeta function technique
Creators: name: Lim, S. C.
name: Teo, L. P.
Publisher: name: arXiv
Year: 2008
Subjects: subject: High Energy Physics - Theory (hep-th)
subject: FOS: Physical sciences

description: We derive rigorously explicit formulas of the Casimir free energy at finite temperature for massless scalar field and electromagnetic field confined in a closed rectangular cavity with different boundary conditions by zeta regularization method. We study both the low and high temperature expansions of the free energy. In each case, we write the free energy as a sum of a polynomial in temperature plus exponentially decay terms. We show that the free energy is always a decreasing function of temperature. In the cases of massless scalar field with Dirichlet boundary condition and electromagnetic field, the zero temperature Casimir free energy might be positive. In each of these cases, there is a unique transition temperature (as a function of the side lengths of the cavity) where the Casimir energy change from positive to negative. When the space dimension is equal to two and three, we show graphically the dependence of this transition temperature on the side lengths of the cavity. Finally we also show that we can obtain the results for a non-closed rectangular cavity by letting the size of some directions of a closed cavity going to infinity, and we find that these results agree with the usual integration prescription adopted by other authors.
description: 32 pages
Sockpuppet Detection: a Telegram case study
Creators: name: Pisciotta, Gabriele
name: Somenzi, Miriana
name: Barisani, Elisa
name: Rossetti, Giulio
Publisher: name: arXiv
Year: 2021
Subjects: subject: Social and Information Networks (cs.SI)
subject: Artificial Intelligence (cs.AI)
subject: FOS: Computer and information sciences
subject: J.4

description: In Online Social Networks (OSN) numerous are the cases in which users create multiple accounts that publicly seem to belong to different people but are actually fake identities of the same person. These fictitious characters can be exploited to carry out abusive behaviors such as manipulating opinions, spreading fake news and disturbing other users. In literature this problem is known as the Sockpuppet problem. In our work we focus on Telegram, a wide-spread instant messaging application, often known for its exploitation by members of organized crime and terrorism, and more in general for its high presence of people who have offensive behaviors.
Dark-Matter-Induced Weak Equivalence Principle Violation
Creators: name: Carroll, Sean M.
name: Mantry, Sonny
name: Ramsey-Musolf, Michael J.
name: Stubbs, Christopher W.
Publisher: name: arXiv
Year: 2008
Subjects: subject: High Energy Physics - Phenomenology (hep-ph)
subject: Astrophysics (astro-ph)
subject: FOS: Physical sciences

description: A long-range fifth force coupled to dark matter can induce a coupling to ordinary matter if the dark matter interacts with Standard Model fields. We consider constraints on such a scenario from both astrophysical observations and laboratory experiments. We also examine the case where the dark matter is a weakly interacting massive particle, and derive relations between the coupling to dark matter and the coupling to ordinary matter for different models. Currently, this scenario is most tightly constrained by galactic dynamics, but improvements in Eotvos experiments can probe unconstrained regions of parameter space.
description: 4 pages
Nonlinear Spatial Filtering in Multichannel Speech Enhancement
Creators: name: Tesch, Kristina
name: Gerkmann, Timo
Publisher: name: arXiv
Year: 2021
Subjects: subject: Audio and Speech Processing (eess.AS)
subject: Sound (cs.SD)
subject: FOS: Electrical engineering, electronic engineering, information engineering
subject: FOS: Computer and information sciences

description: The majority of multichannel speech enhancement algorithms are two-step procedures that first apply a linear spatial filter, a so-called beamformer, and combine it with a single-channel approach for postprocessing. However, the serial concatenation of a linear spatial filter and a postfilter is not generally optimal in the minimum mean square error (MMSE) sense for noise distributions other than a Gaussian distribution. Rather, the MMSE optimal filter is a joint spatial and spectral nonlinear function. While estimating the parameters of such a filter with traditional methods is challenging, modern neural networks may provide an efficient way to learn the nonlinear function directly from data. To see if further research in this direction is worthwhile, in this work we examine the potential performance benefit of replacing the common two-step procedure with a joint spatial and spectral nonlinear filter. We analyze three different forms of non-Gaussianity: First, we evaluate on super-Gaussian noise with a high kurtosis. Second, we evaluate on inhomogeneous noise fields created by five interfering sources using two microphones, and third, we evaluate on real-world recordings from the CHiME3 database. In all scenarios, considerable improvements may be obtained. Most prominently, our analyses show that a nonlinear spatial filter uses the available spatial information more effectively than a linear spatial filter as it is capable of suppressing more than $D-1$ directional interfering sources with a $D$-dimensional microphone array without spatial adaptation.
description: Accepted version, 11 pages, 6 figures
Sub-TeV hadronic interaction model differences and their impact on air showers
Creators: name: Pastor-Gutiérrez, Álvaro
name: Schoorlemmer, Harm
name: Parsons, Robert Daniel
name: Schmelling, Michael
Publisher: name: arXiv
Year: 2021
Subjects: subject: High Energy Astrophysical Phenomena (astro-ph.HE)
subject: High Energy Physics - Phenomenology (hep-ph)
subject: FOS: Physical sciences

description: In the sub-TeV regime, the most widely used hadronic interaction models disagree significant lying their predictions for post-first interaction and ground-level particle spectra from cosmic ray induced air showers. These differences generate an important source of systematic uncertainty in their experimental use. We investigate the nature and impact of model uncertainties through a simultaneous analysis of ground level particles and first interaction scenarios. We focus on air shower primaries with energies close to the transition between high and low energy hadronic interaction models, where the dissimilarities have been shown to be the largest and well within the range of accelerator measurements. Interaction models are shown to diverge as several shower scenarios are compared, reflecting intrinsic differences in the model theoretical frameworks. Finally, we discuss the importance of interactions in the energy regime where the switching between models occurs (<1 TeV) and the effect of the choice of model on the number of hadronic interactions within cosmic ray induced air showers of higher energies.
Linear and nonlinear response for radiative heat transfer in many-body systems
Creators: name: Naeimi, Alireza
name: Nikbakht, Moladad
Publisher: name: arXiv
Year: 2021
Subjects: subject: Mesoscale and Nanoscale Physics (cond-mat.mes-hall)
subject: Optics (physics.optics)
subject: FOS: Physical sciences

description: A theory of temperature dynamics in many-body systems driven by time-dependent external sources is introduced. The formalism based on the combination of the perturbation theory and the fluctuational-electrodynamics approach in many-body systems. By using response theory, explicit formula for the temperature and phase shifts is derived and expressed in terms of the amplitude and phase of external power sources. Although the proposed method is highly efficient because it can skip the transient response, it is valid when external powers are weak. As an illustration of this theoretical framework, we have shown the dynamics of temperatures in one, two, and three degree of freedom systems driven by sine wave input powers. Finally, we highlighted some emergent phenomena arising from purely dynamical many-body effects, including amplification, attenuation, delaying or accelerating temperature responses. This work could find important applications in the domain of dynamical thermal management at the nanoscale.
SUSTAINABLE DEVELOPMENT IN SOUTHEAST ASIA: LESSONS, PARTNERSHIPS, AND ENGLISH
Creators: name: Sarbunan, Thobias
Publisher: name: figshare
Year: 2023
Subjects: classificationCode: 360205
subject: Technical writing
classificationCode: 360299
subject: Creative and professional writing not elsewhere classified
classificationCode: 390302
subject: Early childhood education
classificationCode: 390303
subject: Higher education
classificationCode: 390304
subject: Primary education
classificationCode: 390305
subject: Professional education and training
classificationCode: 390306
subject: Secondary education
classificationCode: 390307
subject: Teacher education and professional development of educators
classificationCode: 390308
subject: Technical, further and workplace education
classificationCode: 390399
subject: Education systems not elsewhere classified

description: Abstract
The objective of this manuscript is to provide an all-encompassing examination of the Southeast Asia Ministerial Forum and its function in advancing Southeast Asian economic integration, sustainable development, and regional cooperation. The analysis encompasses pivotal subjects deliberated upon during the forum, the consequences of regional collaboration on economic progress, and the function of regional establishments like ASEAN in cultivating cooperation. The critical assessment underscores the importance of collaborative strategies, partnerships, and the exchange of knowledge in furthering the objectives of sustainable development. Moreover, the implications of this analysis for the development of the English as a Foreign Language (EFL) curriculum in 2024 are examined in the paper. It emphasizes the significance of critical thinking, problem-solving, technology integration, cultural competence, awareness of ASEAN and regional institutions, communication skills, and the incorporation of global issues into academic and professional writing. English language learners can make a meaningful contribution to sustainable development in Southeast Asia and engage in active participation in regional cooperation by integrating these components into the curriculum.
Keyword: Curriculum; English as a Foreign Language (EFL); Southeast Asia Ministerial Forum; Regional Cooperation; ASEAN; ASEAN Economic Community (AEC); Sustainable Development
10 Years of the PCG workshop: Past and Future Trends
Creators: name: Liapis, Antonios
Publisher: name: arXiv
Year: 2021
Subjects: subject: Artificial Intelligence (cs.AI)
subject: Multimedia (cs.MM)
subject: FOS: Computer and information sciences
subject: J.m; I.2

description: As of 2020, the international workshop on Procedural Content Generation enters its second decade. The annual workshop, hosted by the international conference on the Foundations of Digital Games, has collected a corpus of 95 papers published in its first 10 years. This paper provides an overview of the workshop's activities and surveys the prevalent research topics emerging over the years.
description: 10 pages
Spin-Liquid State in the S = 1/2 Hyperkagome Antiferromagnet Na4Ir3O8
Creators: name: Okamoto, Yoshihiko
name: Nohara, Minoru
name: Aruga-Katori, Hiroko
name: Takagi, Hidenori
Publisher: name: arXiv
Year: 2007
Subjects: subject: Strongly Correlated Electrons (cond-mat.str-el)
subject: FOS: Physical sciences

description: A spinel related oxide, Na4Ir3O8, was found to have a three dimensional network of corner shared Ir4+ (t2g^5) triangles. This gives rise to an antiferromagnetically coupled S = 1/2 spin system formed on a geometrically frustrated hyperkagome lattice. Magnetization M and magnetic specific heat Cm data showed the absence of long range magnetic ordering at least down to 2 K. The large Cm at low temperatures is independent of applied magnetic field up to 12 T, in striking parallel to the behavior seen in triangular and kagome antiferromagnets reported to have a spin-liquid ground state. These results strongly suggest that the ground state of Na4Ir3O8 is a three dimensional manifestation of a spin liquid.
description: 4 pages, 4 figures
Growth of structures and redshift-space distortion data in scale-dependent gravity
Creators: name: Panotopoulos, Grigoris
name: Rincón, Ángel
Publisher: name: arXiv
Year: 2021
Subjects: subject: General Relativity and Quantum Cosmology (gr-qc)
subject: Cosmology and Nongalactic Astrophysics (astro-ph.CO)
subject: High Energy Physics - Theory (hep-th)
subject: FOS: Physical sciences

description: This study is devoted to the implications of scale-dependent gravity in Cosmology. Redshift-space distortion data indicate that there is a tension between $Λ$CDM and available observations as far as the value of the rms density fluctuation, $σ_8$, is concerned. It has been pointed out that this tension may be alleviated in alternative theories in which gravity is weaker at red-shift $z \sim 1$. We study the evolution of density perturbations for non-relativistic matter on top of a spatially flat FLRW Universe, and we compute the combination $A=f σ_8$ in the framework of scale-dependent gravity, where both Newton's constant and the cosmological constant are allowed to vary with time. Upon comparison between available observational data (supernovae data as well as redshift-space distortion data) and theoretical predictions of the model, we determine the numerical value of $σ_8$ that best fits the data.
description: 10 pages, 1 table, 4 figures, accepted in EPJ Plus
Theory of inelastic lifetimes of surface-state electrons and holes at metal surfaces
Creators: name: Pitarke, J. M.
name: Garcia-Vergniory, M.
Publisher: name: arXiv
Year: 2008
Subjects: subject: Materials Science (cond-mat.mtrl-sci)
subject: Mesoscale and Nanoscale Physics (cond-mat.mes-hall)
subject: FOS: Physical sciences

description: After the early suggestion by John Pendry to probe unoccupied bands at surfaces through the time reversal of the photoemission process, the inverse-photoemission technique yielded the first conclusive experimental evidence for the existence of image-potential bound states at metal surfaces and has led over the last two decades to an active area of research in condensed-matter and surface physics. Here we describe the current status of the many-body theory of inelastic lifetimes of these image-potential states and also the Shockley surface states that exist near the Fermi level in the projected bulk band gap of simple and noble metals. New calculations of the self-energy and lifetime of surface states on Au surfaces are presented as well, by using the $GWΓ$ approximation of many-body theory.
description: 17 pages, 7 figures, to appear in J Phys-Condens Mat
Supplementary materials of the research article "A Semantics Framework for Better Computer Characterization of Structural Geological Models"
Creators: name: Zhan, Xianglin
Publisher: name: Zenodo
Year: 2019

description: The article is a revised version of Zhan, X., Liang, J., Lu, C., and Hu, G.: Semantic Description and Complete Computer Characterization of Structural Geological Models, Geosci. Model Dev. Discuss., https://doi.org/10.5194/gmd-2018-305, in review, 2019. Source code for semantics extraction and structural model reconstruction of Hasan survey (located Xinjiang,China), and simulation of calculating points on intersecting lines. Software for 3D visaulization of structural models, used to present the ZhengbaSouth model. Datasets for Hasan survey and ZhengbaSouth survey (located Chongqing,China). All mentioned above are used in the article "A Semantics Framework for Better Computer Characterization of Structural Geological Models".
From Duel to Dispute
Creators: name: Tomasi, Giulia
Publisher: name: Università Ca’ Foscari Venezia, Italia
Year: 2019

description:
This article highlights the variety that characterises the Spanish romances of chivalry as a genre. The uniqueness of Valerián de Hungría by Dionís Clemente (1540) is given by its rich content and lexicon. By the end of the book, the author includes a heated debate between two knights whose opinions about love contrast. They are Pacífico and Cupidio. Such a dispute needs to be studied in light of the bibliography about the genre within the Middle Ages and the Renaissance, in order to find out which elements Clemente re-elaborates. The investigation develops through the comparison with a few episodes taken from other romances of chivalry, but also with the ideology spread within contemporary works in which the same themes of Valerián are remarked.

description: Rassegna iberistica
Missing Information in the Fictional Worlds of Benito Pérez Galdós
Creators: name: Siviero, Donatella
Publisher: name: Università Ca’ Foscari Venezia, Italia
Year: 2019

description:
This paper will examine the use of missing information in some novels by Benito Pérez Galdós: the trilogy El doctor Centeno, Tormento, La de Bringas. Galdós’ plots are built on allusions and withheld information, and revealed by different narrative voices; they require an active participation on the part of the reader, who must put together different blocks of information as though they were tesseras in a mosaic. This missing information leads to subjective textual lacunas, that is, they are deliberately interlocutory and relational, in order to lead the reader to a continual collaboration and to make him/her create logical connections between the text’s different perspectives. The use of this reticence strategy creates an almost metafictional relationship between Galdós’ works and the reader, a bond that is surprisingly modern with respect to the latter’s horizons of expectation.

description: Rassegna iberistica
Negrista Influences in the Cuban Drawings of Galician Castelao and Manchego García Maroto
Creators: name: Bajini, Irina
Publisher: name: Università Ca’ Foscari Venezia, Italia
Year: 2019

description:
In this article we compare the graphic representations of two Spanish artists both committed to representing Cuban transculturation in the era of the avant-gardes of the 20th century. In a climate of negrista cultural effervescence and optimism for the accomplishment of the republican project, the trip and the happy stay in Cuba of Federico García Lorca were developed together with the musicologist Adolfo Salazar and the painter, writer and engraver Gabriel García Maroto. Eight years later, also a Galician from humid and cold lands like Alfonso Castelao would undertake the same American journey and, in spite of his political worries and his personal anguish for the future of Spain, he would find in Cuba a haven of peace from where he swelled his artistic creativity. This is food in the soil of the warm encounter with the Galician community settled on the island, the discovery bell of the third root of America, glimpsed in New York and known more closely in Havana.

description: Rassegna iberistica
Be Happy: Navigating Normative Issues in Behavioral and Well-Being Public Policy.
Creators: name: Fabian, Mark
name: Pykett, Jessica
Publisher: name: Apollo - University of Cambridge Repository
Year: 2021

description: Psychological science is increasingly influencing public policy. Behavioral public policy (BPP) was a milestone in this regard because it influenced many areas of policy in a general way. Well-being public policy (WPP) is emerging as a second domain of psychological science with general applicability. However, advocacy for WPP is criticized on ethical and political grounds. These criticisms are reminiscent of those directed at BPP over the past decade. This déjà vu suggests the need for interdisciplinary work that establishes normative principles for applying psychological science in public policy. We try to distill such principles for WPP from the normative debates over BPP. We argue that the uptake of BPP by governments was a function of its relatively strong normative and epistemic foundations in libertarian paternalism, or nudging, for short. We explain why the nudge framework is inappropriate for WPP. We then analyze how boosts offer a strict but feasible alternative framework for substantiating the legitimacy of well-being and behavioral policies. We illuminate how some WPPs could be fruitfully promoted as boosts and how they might fall short of the associated criteria.
Paired composite fermion wavefunctions
Creators: name: Moller, Gunnar
name: Simon, Steven H.
Publisher: name: arXiv
Year: 2007
Subjects: subject: Mesoscale and Nanoscale Physics (cond-mat.mes-hall)
subject: FOS: Physical sciences

description: We construct a family of BCS paired composite fermion wavefunctions that generalize, but remain in the same topological phase as, the Moore-Read Pfaffian state for the half-filled Landau level. It is shown that for a wide range of experimentally relevant inter-electron interactions the groundstate can be very accurately represented in this form.
description: 4 pages, 2 figures
Entanglement, randomness and chaos
Creators: name: Benenti, Giuliano
Publisher: name: arXiv
Year: 2008
Subjects: subject: Quantum Physics (quant-ph)
subject: FOS: Physical sciences

description: Entanglement is not only the most intriguing feature of quantum mechanics, but also a key resource in quantum information science. The entanglement content of random pure quantum states is almost maximal; such states find applications in various quantum information protocols. The preparation of a random state or, equivalently, the implementation of a random unitary operator, requires a number of elementary one- and two-qubit gates that is exponential in the number n_q of qubits, thus becoming rapidly unfeasible when increasing n_q. On the other hand, pseudo-random states approximating to the desired accuracy the entanglement properties of true random states may be generated efficiently, that is, polynomially in n_q. In particular, quantum chaotic maps are efficient generators of multipartite entanglement among the qubits, close to that expected for random states. This review discusses several aspects of the relationship between entanglement, randomness and chaos. In particular, I will focus on the following items: (i) the robustness of the entanglement generated by quantum chaotic maps when taking into account the unavoidable noise sources affecting a quantum computer; (ii) the detection of the entanglement of high-dimensional (mixtures of) random states, an issue also related to the question of the emergence of classicality in coarse grained quantum chaotic dynamics; (iii) the decoherence induced by the coupling of a system to a chaotic environment, that is, by the entanglement established between the system and the environment.
description: Review paper, 40 pages, 7 figures, added references
«No sin ser deformada puede la realidad exhibir sus enigmas»: Poetics and Writing in the Lyrical Work of J.M. Caballero Bonald
Creators: name: Flores, Maria Josefa
Publisher: name: Università Ca’ Foscari Venezia, Italia
Year: 2019

description:
Through the analysis of a few theoretical and literary texts by J.M. Caballero Bonald, this work highlights the centrality of the concept of artistic ‘deformation’ in the author’s poetical conception and, at the same time, his rejection of any kind of mimetic art. This ‘deformation’ – which, upon re-working reality, allows the artist to reveal reality’s occult face – in Caballero Bonald’s view is the true purpose of literature. Closely linked to it are painting (especially Picasso’s Cubism), the surrealist imagination and baroque aesthetics, all fundamental to his literary opus, which is analysed in this essay without losing sight of concepts such as Labyrinth, Otherness, and Hermeticism, also of great importance in casting light upon Caballero Bonald’s works.

description: Rassegna iberistica
The “Hispanic American Things”. Italo Calvino as an Editorial Reader of Latin American Writers
Creators: name: Carini, Sara
Publisher: name: Università Ca’ Foscari Venezia, Italia
Year: 2019

description:
The aim of this study is to describe the work of Italo Calvino as a lecturer of Hispano-American writers for Einaudi during the 1970s. Through specific case studies of editorial mediation taken by the archive documents of Einaudi we will outline the principles used by Calvino to assure the edition of Hispano-American works. That will help us to include Calvino’s activity into the field of Latin American literature reception and editorial mediation studies in Italy during the second half of the 20th century.

description: Rassegna iberistica
A Hybrid Controller for DOS-Resilient String-Stable Vehicle Platoons
Creators: name: Merco, Roberto
name: Ferrante, Francesco
name: Pisu, Pierluigi
Publisher: name: arXiv
Year: 2021
Subjects: subject: Systems and Control (eess.SY)
subject: FOS: Electrical engineering, electronic engineering, information engineering

description: This paper deals with the design of resilient Cooperative Adaptive Cruise Control (CACC) for homogeneous vehicle platoons in which communication is vulnerable to Denial-of-Service (DOS) attacks. We consider DOS attacks as consecutive packet dropouts. We present a controller tuning procedure based on linear matrix inequalities (LMI) that maximizes the resiliency to DOS attacks, while guaranteeing performance and string stability. The design procedure returns controller gains and gives a lower bound on the maximum allowable number of successive packet dropouts. A numerical example is employed to illustrate the effectiveness of the proposed approach.
description: Published version