cometadata/datacite-rtg-text-other-reclassification-records huggingface dataset:
Additional file 2 of Wild rice harbors more root endophytic fungi than cultivated rice in the F1 offspring after crossbreeding
Creators: name: Tian, Lei
name: Wang, Enze
name: Lin, Xiaolong
name: Ji, Li
name: Chang, Jingjing
name: Chen, Hongping
name: Wang, Jilin
name: Chen, Dazhou
name: Tran, Lam-Son Phan
name: Tian, Chunjie
Publisher: name: figshare
Year: 2021
Subjects: subject: Microbiology
subject: FOS: Biological sciences

description: Additional file 2: Figure S1. Rarefication curves for the bacterial (A) and fungal (B) OTUs in each group. Each group was comprised of 4 replicates (n = 4). Af-W, African wild rice; Af-H, F1 generation of a cross between African wild rice (Af-W) and African cultivated rice (AfC1); AfC1, African cultivated rice No. 2; AfC2, African cultivated rice No. 4; NW1, nivara wild rice No. 1; NW2, nivara wild rice No. 2; NW-H, F1 generation of a cross between nivara wild rice (NW1) and Asian cultivated rice (indica, InC); CW1, common wild rice No. 1; CW2, common wild rice No. 2; CW-H, F1 generation of a cross between common wild rice (CW1) and Asian cultivated rice (japonica, JaC); InC, Asian cultivated rice (Jiangxi indica); JaC, Asian cultivated rice (Jiangxi japonica).
title: Changes in chlorophyll-a concentrations in the Baltic Proper
Creators: name: Ameryk, Anetta
name: Zalewski, Mariusz
name: Pastuszak, Marianna
Publisher: name: ASC 2011 - Theme session B
Year: 2024
Subjects: Ecosystem observation, processes and dynamics
Pressures, impacts, conservation, and management

description: No abstracts are to be cited without prior reference to the author.Apart from the light conditions, changes in nutrient concentrations and in temperature have crucial impact on phytoplankton growth. Relatively simple measurements of chlorophyll a concentrations provide information on phytoplankton biomass in water. Measurements of seasonal concentrations of chlorophyll a, nutrients, temperature, and some other environmental parameters were carried out in the southern Baltic Proper in 1977–2010; the region of study encompassed the Pomeranian Bay, the Bornholm Basin, the Gdańsk Basin (including the Gulf of Gdańsk), and the southern Gotland Basin. Over the first 15 years of the studies, measurements of chlorophyll a concentrations were carried out using spectrophotometers, whereas in subsequent years two parallel techniques were used: the spectrophotometric and the fluorometric one. The period of our studies was characterized by an increase in both the temperature and the nutrient concentrations in the Baltic surface waters, and that must have caused the observed increase in chlorophyll a concentrations. Heavy blue‐green algae blooms recorded over recent years in the Baltic surface waters have resulted in an increase in chlorophyll a concentrations in the surface water layer. The estimations demonstrate that in the southern Baltic the increase amounted to ca. 2% annually over the last 15 years. The spring phytoplankton bloom is observed earlier in the western part of the region studied.
Controlling Josephson transport by manipulation of Andreev levels in ballistic mesoscopic junctions
Creators: name: Wendin, Goran
name: Shumeiko, Vitaly S.
name: Samuelsson, Peter
Publisher: name: arXiv
Year: 1998
Subjects: subject: Superconductivity (cond-mat.supr-con)
subject: FOS: Physical sciences

description: We discuss how to control dc Josephson current by influencing the structure and nonequilibrium population of Andreev levels via external electrostatic gates, external current injection and electromagnetic radiation. In particular we will consider the "giant" Josephson current in "long" SIS tunnel junctions and the regular and anomalous nonequilibrium Josephson currents in three terminal SNS junctions. We will briefly discuss applications to the Josephson field effect transistor (JOFET) and to the newly invented Josephson interference transistor (JOINT).
description: 10 pages, 3 figures; contribution to a special volume of Superlattices and Microstructures journal (ed. P.F. Bagwell)
Weak and strong deflection gravitational lensings by a charged Horndeski black hole
Creators: name: Wang, Cheng-Yi
name: Shen, Yu-Fu
name: Xie, Yi
Publisher: name: arXiv
Year: 2019
Subjects: subject: General Relativity and Quantum Cosmology (gr-qc)
subject: FOS: Physical sciences

description: A charged black hole was predicted by the Einstein--Horndeski--Maxwell theory. In order to provide its observational signatures, we investigate its weak and strong deflection gravitational lensings. We find its weak deflection lensing observables, including the positions, magnifications and differential time delay of the lensed images. We also obtain its strong deflection lensing observables, including the apparent radius of the photon sphere as well as the angular separation, brightness difference and differential time delay between the relativistic images. Taking the supermassive black hole in the Galactic Center as the lens, we evaluate these observables and compare these signatures with those of the Schwarzschild, Reissner-Nordström, tidal Reissner-Nordström and charged Galileon black holes. After a detailed analysis of the feasibility of measuring these lensing observables, we conclude that although it is possible to detect some leading effects of the weak and strong deflection lensings by the charged Horndeski and other black holes with current technology, it would be unlikely to distinguish one kind of these black holes from the others based on these detections in the near future due to lack of enough highly angular resolution in astronomical observations to tell their differences.
description: 32 pages, 2 figures
Electronic Transport and Thermopower in 2D and 3D Heterostructures--A Theory Perspective
Creators: name: Majee, Arnab K.
name: Kommini, Adithya
name: Aksamija, Zlatan
Publisher: name: arXiv
Year: 2019
Subjects: subject: Mesoscale and Nanoscale Physics (cond-mat.mes-hall)
subject: FOS: Physical sciences

description: In this review, we discuss the impact of interfaces and heterojuctions on the electronic and thermoelectric transport properties of materials. We review recent progress in understanding electronic transport in two-dimensional (2D) materials ranging from graphene to transition metal dichalcogenides (TMDs), their homojunctions (grain boundaries), lateral heterojunctions (such as graphene/MoS$_2$ lateral interfaces), and vertical van der Waals (vdW) heterostructures. We also review work in thermoelectric properties of 2D heterojunctions, as well as their applications in creating devices such as resonant tunneling diodes (RTDs). Lastly, we turn our focus to work in three-dimensional (3D) heterostructures. While transport in 3D heterostructures has been researched for several decades, here we review recent progress in theory and simulation of quantum effects on transport via the Wigner and non-equilibrium Green's functions (NEGF) approaches. These simulation techniques have been successfully applied toward understanding the impact of heterojunctions on the thermoelectric properties, with applications in energy harvesting, and electron resonant tunneling, with applications in RTDs. We conclude that tremendous progress has been made in both simulation and experiments toward the goal of understanding transport in heterostructures and this progress will soon be parlayed into improved energy converters and quantum nanoelectronic devices.
description: 21 pages, 13 figures, review article, v2 expanded the figures
T-Duality Considerations for Hadronic Strings
Creators: name: Feigenbaum, James A.
name: Freund, Peter G. O.
name: Pigli, Mircea
Publisher: name: arXiv
Year: 1997
Subjects: subject: High Energy Physics - Phenomenology (hep-ph)
subject: High Energy Physics - Theory (hep-th)
subject: FOS: Physical sciences

description: We show that a simple account of hadronic high energy total cross-sections and of the observed masses and flavor-gauge-like couplings of the familiar vector mesons is obtained in a hadronic string model suggested by QCD in the limit of a large number of colors. Our picture involves a Minkowski space which in addition to the well established continuous one time and three space dimensions is endowed with an extra discrete space dimension involving a minimal 2-point lattice with spacing of order 10^{-14} cm in one of the two T-dual pictures. New mesonic states with characteristic decay modes are expected in such a picture.
description: 14 pages, latex, 1 figure
Tubular approaches to Baker's method for curves and varieties
Creators: name: Fourn, Samuel Le
Publisher: name: arXiv
Year: 2018
Subjects: subject: Number Theory (math.NT)
subject: FOS: Mathematics
subject: 11G35, 11J86

description: Baker's method, relying on estimates on linear forms in logarithms of algebraic numbers, allows one to prove in several situations the effective finiteness of integral points on varieties. In this article, we give a generalisation of results of Levin regarding Baker's method for varieties, and explain how, quite surprisingly, it mixes (under additional hypotheses) with Runge's method to improve some known estimates in the case of curves by bypassing (or more generally reducing) the need for linear forms in $p$-adic logarithms.
High-Temperature Series Analysis of the Free Energy and Susceptibility of the 2D Random-Bond Ising Model
Creators: name: Roder, Alexandra
name: Adler, Joan
name: Janke, Wolfhard
Publisher: name: arXiv
Year: 1999
Subjects: subject: Condensed Matter (cond-mat)
subject: FOS: Physical sciences

description: We derive high-temperature series expansions for the free energy and susceptibility of the two-dimensional random-bond Ising model with a symmetric bimodal distribution of two positive coupling strengths J_1 and J_2 and study the influence of the quenched, random bond-disorder on the critical behavior of the model. By analysing the series expansions over a wide range of coupling ratios J_2/J_1, covering the crossover from weak to strong disorder, we obtain for the susceptibility with two different methods compelling evidence for a singularity of the form $χ\sim t^{-7/4} |\ln t|^{7/8}$, as predicted theoretically by Shalaev, Shankar, and Ludwig. For the specific heat our results are less convincing, but still compatible with the theoretically predicted log-log singularity.
description: 19 pages, 6 Postscript figures
Universal Broadening of Zero Modes: A General Framework and Identification
Creators: name: Kieburg, M.
name: Mielke, A.
name: Splittorff, K.
Publisher: name: arXiv
Year: 2019
Subjects: subject: Statistical Mechanics (cond-mat.stat-mech)
subject: FOS: Physical sciences

description: We consider the smallest eigenvalues of perturbed Hermitian operators with zero modes, either topological or system specific. To leading order for small generic perturbation we show that the corresponding eigenvalues broaden to a Gaussian random matrix ensemble of size $ν\timesν$, where $ν$ is the number of zero modes. This observation unifies and extends a number of results within chiral random matrix theory and effective field theory and clarifies under which conditions they apply. The scaling of the former zero modes with the volume differs from the eigenvalues in the bulk, which we propose as an indicator to identify them in experiments. These results hold for all ten symmetric spaces in the Altland-Zirnbauer classification and build on two facts. Firstly, the broadened zero modes decouple from the bulk eigenvalues and secondly, the mixing from eigenstates of the perturbation form a Central Limit Theorem argument for matrices.
description: 31 pages, 3 figures; v2: Version published in PRE
Transition from Abelian to non-Abelian FQHE states
Creators: name: Cabra, D. C.
name: Lopez, A.
name: Rossini, G. L.
Publisher: name: arXiv
Year: 2000
Subjects: subject: Mesoscale and Nanoscale Physics (cond-mat.mes-hall)
subject: Strongly Correlated Electrons (cond-mat.str-el)
subject: FOS: Physical sciences

description: We study the transition from the Abelian multi-component (3,3,1) quantum Hall state to the non-Abelian one component Pfaffian state in bilayer two dimensional electron systems. We show that tunneling between layers can induce this transition. At the transition points part of the degrees of freedom that describe the (3,3,1) state disappear from the spectrum, and the system is correctly described by the Pfaffian state, with quasi-particles that satisfy non-Abelian statistics. The mechanism described in this work provides for a physical Hamiltonian interpretation of the algebraic projection from the (3,3,1) to the Pfaffian state that has been discussed in the literature.
description: 4 pages, RevTeX
Response of the skyrmion lattice in MnSi to cubic magnetocrystalline anisotropies
Creators: name: Adams, T.
name: Garst, M.
name: Bauer, A.
name: Georgii, R.
name: Pfleiderer, C.
Publisher: name: arXiv
Year: 2018
Subjects: subject: Strongly Correlated Electrons (cond-mat.str-el)
subject: Other Condensed Matter (cond-mat.other)
subject: FOS: Physical sciences

description: We report high-precision small angle neutron scattering of the orientation of the skyrmion lattice in a spherical sample of MnSi under systematic changes of the magnetic field direction. For all field directions the skyrmion lattice may be accurately described as a triple-$\vec{Q}$ state, where the modulus $\vert \vec{Q} \vert$ is constant and the wave vectors enclose rigid angles of $120^{\circ}$. Along a great circle across $\langle 100\rangle$, $\langle 110\rangle$, and $\langle 111\rangle$ the normal to the skyrmion-lattice plane varies systematically by $\pm3^{\circ}$ with respect to the field direction, while the in-plane alignment displays a reorientation by $15^{\circ}$ for magnetic field along $\langle 100\rangle$. Our observations are qualitatively and quantitatively in excellent agreement with an effective potential, that is determined by the symmetries of the tetrahedral point group $T$ and includes contributions up to sixth-order in spin-orbit coupling, providing a full account of the effect of cubic magnetocrystalline anisotropies on the skyrmion lattice in MnSi.
title: Comparison of Temporal Variation of Chlorophyll-a, Environmental Parameter in the South-Eastern Black Sea Coast During the Periods of 1993-1994 and 2001-2002
Creators: name: Feyzioglu, Ali Muzaffer
name: Kopuz, Ulgen
Publisher: name: ASC 2011 - Theme session B
Year: 2024
Subjects: Ecosystem observation, processes and dynamics
Pressures, impacts, conservation, and management

description: No abstracts are to be cited without prior reference to the author.The Black Sea coastal ecosystem is very dynamic. During the last two decades, fisheries have been affected by regime shift, a changing ecosystem structure, and overfishing. As in all aquatic ecosystems, phytoplankton is an important factor in the Black Sea. A monitoring programme for phytoplankton biomass helps us to understand ecosystem dynamics by using bottom up control models. In the present study we try to understand and compare phytoplankton biomass dynamics and responses to environmental parameters during the periods 1993–1994 and 2001–2002. For this purpose, the station was fixed 8 km from the coastline and water samples collected monthly. Our results showed that Secchi disc depth was greater in the 2001–2003 sampling period than that in the 1993–1994 sampling period. This increase demonstrated that light penetration increased but attenuation of light decreased. Chlorophyll a values, used as an indicator of phytoplankton biomass, were higher in 1993–1994 and decreased in the 2001–2002 samples. Diatom biomass decreased and species composition also changed in 2001–2002. In contrast, diversity of dinoflagellate species increased.
Universailty of Low Energy Absorption Cross-sections for Black Holes
Creators: name: Das, Sumit R.
name: Gibbons, Gary
name: Mathur, Samir D.
Publisher: name: arXiv
Year: 1996
Subjects: subject: High Energy Physics - Theory (hep-th)
subject: General Relativity and Quantum Cosmology (gr-qc)
subject: FOS: Physical sciences

description: In this paper we compute the low energy absorption cross-section for minimally coupled massles scalars and spin-$1/2$ particles, into a general spherically symmetric black hole in arbitrary dimensions. The scalars have a cross section equal to the area of the black hole, while the spin-$1/2$ particles give the area measured in a flat spatial metric conformally related to the true metric.
description: RevTeX, 3 pages
Constraints on nuclear parton distributions from dijet photoproduction at the LHC
Creators: name: Guzey, V.
name: Klasen, M.
Publisher: name: arXiv
Year: 2019
Subjects: subject: High Energy Physics - Phenomenology (hep-ph)
subject: Nuclear Experiment (nucl-ex)
subject: Nuclear Theory (nucl-th)
subject: FOS: Physical sciences

description: Using QCD calculations of the cross section of inclusive dijet photoproduction in Pb-Pb ultraperipheral collisions in the LHC kinematics as pseudo-data, we study the effect of including these data using the Bayesian reweighting technique on nCTEQ15, nCTEQ15np, and EPPS16 nuclear parton distribution functions (nPDFs). We find that, depending on the assumed error of the pseudo-data, it leads to a significant reduction of the nPDF uncertainties at small values of the momentum fraction $x_A$. Taking the error to be 5\%, the uncertainty of nCTEQ15 and nCTEQ15np nPDFs reduces approximately by a factor of two at $x_A=10^{-3}$. At the same time, the reweighting effect on EPPS16 nPDFs is much smaller due to the higher value of the tolerance and a more flexible parametrization form.
description: 16 pages, 11 figures. Final published version
Effective Field Theory and Matching in Non-Relativistic Gauge Theories
Creators: name: Grinstein, Benjamin
name: Rothstein, Ira Z.
Publisher: name: arXiv
Year: 1997
Subjects: subject: High Energy Physics - Phenomenology (hep-ph)
subject: High Energy Physics - Lattice (hep-lat)
subject: Nuclear Theory (nucl-th)
subject: FOS: Physical sciences

description: The effective Lagrangian and power counting rules for non-relativistic gauge theories are derived via an expansion in $1/c$. It is shown that the $1/c$ expansion leads to an effective field theory which incorporates a multipole expansion. Failure to use this expansion in the low energy theory leads to a loss of predictive power as the matching procedure becomes intractable. It is emphasized that there is not a one-to-one correspondence between operators in the modified low energy theory and those in the heavy quark effective theory.We also discuss the Lamb shift as a pedagogical example of the power counting scheme.
description: 11 pages LATEX. Version to appear in PRD. Paragraph regarding non-local four quark operators included. Comparison of magnetic moment operator scaling to other schemes removed. Discussion of the non-multipole expanded theory modified
Influence of static disorder and polaronic band formation on interfacial electron transfer in organic photovoltaic devices
Creators: name: Richler, Kevin-Davis
name: Mayou, Didier
Publisher: name: arXiv
Year: 2019
Subjects: subject: Strongly Correlated Electrons (cond-mat.str-el)
subject: FOS: Physical sciences

description: Understanding the interfacial charge-separation mechanism in organic photovoltaics requires, due to its high level of complexity, bridging between chemistry and physics. To elucidate the charge separation mechanism, we present a fully quantum dynamical simulation of a generic one-dimensional Hamiltonian, which physical parameters model prototypical PCBM or $\text{C}_{60}$ acceptor systems. We then provide microscopic evidence of the influence random static and dynamic potentials have on the interfacial charge-injection rate. In particular, we unveil that dynamic potentials, due to strong electron-vibration interactions, can lead to the formation of polaronic bands. Such dynamical potentials, when compared to random static potentials, can provide the main detrimental influence on the efficiency of the process of interfacial charge-separation.
Microstructure and formation mechanisms of δ-hydrides in variable grain size Zircaloy-4 studied by electron backscatter diffraction
Creators: name: Wang, Siyang
name: Giuliani, Finn
name: Britton, T. Ben
Publisher: name: arXiv
Year: 2018
Subjects: subject: Materials Science (cond-mat.mtrl-sci)
subject: FOS: Physical sciences

description: Microstructure and crystallography of δ phase hydrides in as-received fine grain and 'blocky' alpha large grain Zircaloy-4 (average grain size ~11 μm and >200 μm, respectively) were examined using electron backscatter diffraction. Results suggest that the the matrix-hydride orientation relationship is {0001}α||{111}δ;<11-20>α||<110>δ for all the cases studied. The habit plane of intragranular hydrides and some intergranular hydrides has been found to be {10-17} of the surrounding matrix. The morphology of intergranular hydrides can vary depending upon the angle between the grain boundary and the hydride habit plane. The misfit strain between α-Zr and δ-hydride is accommodated by high density of dislocations and twin structures in the hydrides, and a mechanism of twin formation in the hydrides has been proposed. The growth of hydrides across grain boundaries is achieved through an auto-catalytic manner similar to the growth pattern of intragranular hydrides. Easy collective shear along <1-100> makes it possible for hydride nucleation at any grain boundaries, while the process seems to favour grain boundaries with low (<40°) and high (>80°) c-axis misorientation angles. Moreover, the angle between the grain boundary and the adjacent basal planes does not influence the propensity for hydride nucleation.
description: as submitted manuscript
Classical Hair in String Theory II: Explicit Calculations
Creators: name: Larsen, Finn
name: Wilczek, Frank
Publisher: name: arXiv
Year: 1996
Subjects: subject: High Energy Physics - Theory (hep-th)
subject: General Relativity and Quantum Cosmology (gr-qc)
subject: FOS: Physical sciences

description: After emphasizing the importance of obtaining a space-time understanding of black hole entropy, we further elaborate our program to identify the degrees of freedom of black holes with classical space-time degrees of freedom. The Cvetič-Youm dyonic black holes are discussed in some detail as an example. In this example hair degrees of freedom transforming as an effective string can be identified explicitly. We discuss issues concerning charge quantization, identification of winding, and tension renormalization that arise in counting the associated degrees of freedom. The possibility of other forms of hair in this example, and the prospects for making contact with D-brane ideas, are briefly considered.
description: Latex, 40 pages, no figures
Building traps for skyrmions by the incorporation of magnetic defects into nanomagnets: pinning and scattering traps by magnetic properties engineering
Creators: name: Toscano, D.
name: Leonel, S. A.
name: Coura, P. Z.
name: Sato, F.
Publisher: name: arXiv
Year: 2018
Subjects: subject: Computational Physics (physics.comp-ph)
subject: Applied Physics (physics.app-ph)
subject: FOS: Physical sciences

description: In this work we have used micromagnetic simulations to report four ways to build traps for magnetic skyrmions. Magnetic defects have been modeled as local variations in the material parameters, such as the exchange stiffness, saturation magnetization, magnetocrystalline anisotropy and Dzyaloshinskii-Moriya constant. We observe both pinning (potential well) and scattering (potential barrier) traps when tuning either a local increase or a local reduction for each one of these magnetic properties. It is found that the skyrmion-defect aspect ratio is a crucial parameter to build traps for skyrmions. In particular, the efficiency of the trap is compromised if the defect size is smaller than the skyrmion size, because they interact weakly. On the other hand, if the defect size is larger than the skyrmion diameter, the skyrmion-defect interaction becomes evident. Thus, the strength of the skyrmion-defect interaction can be tuned by the modification of the magnetic properties within a region with suitable size. Furthermore, the basic physics behind the mechanisms for pinning and for scattering is discussed. In particular, we discover that skyrmions move towards the magnetic region which tends to maximize its diameter; it enables the magnetic system to minimize its energy. Thus, we are able to explain why skyrmions are either attracted or repelled by a region with modified magnetic properties. Results here presented are of utmost significance for the development and realization of future spintronic devices, in which skyrmions will work as information carriers.
Pipeline model of a Fermi-sea electron pump
Creators: name: Sols, Fernando
name: Wagner, Mathias
Publisher: name: arXiv
Year: 2000
Subjects: subject: Mesoscale and Nanoscale Physics (cond-mat.mes-hall)
subject: FOS: Physical sciences

description: The use of a band offset between the two leads of an electron pump driven by a local oscillating voltage is shown to increase the pump current dramatically. The structure of the electron transmission suggests the existence of dominant inelastic channels which we call pipelines. This permits the formulation of a simple model that gives a physical account of the numerical results for a realistic device. A spectral analysis reveals the pump current to be carried by scattering states with initial energy deep within the Fermi sea and not at its surface, thereby rendering the effect insensitive to temperature. We show this is compatible with the current flowing near the Fermi surface in the leads.
description: 6 pages in RevTex4 (beta4), 4 figures; status: accepted for publication reason for replacement: A more detailed discussion of the differences to Ref. [5] has been provided & new reference added
Generalized forward scattering amplitudes in QCD at high temperature
Creators: name: Brandt, F. T.
name: Frenkel, J.
Publisher: name: arXiv
Year: 1997
Subjects: subject: High Energy Physics - Theory (hep-th)
subject: High Energy Physics - Phenomenology (hep-ph)
subject: FOS: Physical sciences

description: We extend to a general class of covariant gauges an approach which relates the thermal Green functions to forward scattering amplitudes of thermal particles. A brief discussion of the non-transversality of the thermal gluon polarization tensor is given in this context. This method is then applied to the calculation of the ln(T) contributions associated with general configurations of 2 and 3-point gluon functions. The results are Lorentz covariant and have the same structure as the ultraviolet divergent contributions which occur at zero temperature.
description: 10 pages, 3 figures
The Dynamics of Non-Crystalline Silica: Insight from Molecular Dynamics Computer Simulations
Creators: name: Kob, Walter
name: Horbach, Jurgen
name: Binder, Kurt
Publisher: name: arXiv
Year: 1998
Subjects: subject: Statistical Mechanics (cond-mat.stat-mech)
subject: Disordered Systems and Neural Networks (cond-mat.dis-nn)
subject: FOS: Physical sciences

description: Using a large scale molecular dynamics computer simulation we investigate the dynamics of a supercooled melt of SiO_2. We find that with increasing temperature the temperature dependence of the diffusion constants crosses over from an Arrhenius-law, with activation energies close to the experimental values, to a power-law dependence. We show that this crossover is related to the fact that at low temperatures the dynamics of the ions is dominated by hopping processes, whereas at high temperatures it shows the continuous flow-like motion proposed by the ideal version of mode-coupling theory (MCT). Finally we show that at low temperatures the dynamics of the system in the beta-relaxation regime obeys the factorization property, in agreement with MCT.
description: Invited talk given at 8th Tohwa University International Symposium on "Slow Dynamics in Complex Systems", Fukuoka Nov. 1998; 12 pages of Latex, 6 figures; uses aipproc.sty
Quantum scalar field on three-dimensional (BTZ) black hole instanton: heat kernel, effective action and thermodynamics
Creators: name: Mann, Robert B.
name: Solodukhin, Sergey N.
Publisher: name: arXiv
Year: 1996
Subjects: subject: High Energy Physics - Theory (hep-th)
subject: General Relativity and Quantum Cosmology (gr-qc)
subject: FOS: Physical sciences

description: We consider the behaviour of a quantum scalar field on three-dimensional Euclidean backgrounds: Anti-de Sitter space, the regular BTZ black hole instanton and the BTZ instanton with a conical singularity at the horizon. The corresponding heat kernel and effective action are calculated explicitly for both rotating and non-rotating holes. The quantum entropy of the BTZ black hole is calculated by differentiating the effective action with respect to the angular deficit at the conical singularity. The renormalization of the UV-divergent terms in the action and entropy is considered. The structure of the UV-finite term in the quantum entropy is of particular interest. Being negligible for large outer horizon area $A_+$ it behaves logarithmically for small $A_+$. Such behaviour might be important at late stages of black hole evaporation.
description: 28 pages, latex, 2 figures now included
Theory for Time-Resolved Resonant Inelastic X-ray Scattering
Creators: name: Chen, Yuan
name: Wang, Yao
name: Jia, Chunjing
name: Moritz, Brian
name: Shvaika, Andrij M.
name: Freericks, James K.
name: Devereaux, Thomas P.
Publisher: name: arXiv
Year: 2019
Subjects: subject: Strongly Correlated Electrons (cond-mat.str-el)
subject: Other Condensed Matter (cond-mat.other)
subject: FOS: Physical sciences

description: Time-resolved measurements of materials provide a wealth of information on quasiparticle dynamics, and have been the focus of optical studies for decades. In this paper, we develop a theory for explicitly evaluating time-resolved resonant inelastic X-ray scattering (tr-RIXS). We apply the theory to a non-interacting electronic system and reveal the particle-hole spectrum and its evolution during the pump pulse. With a high-frequency pump, the frequency and amplitude dependence analysis of the spectra agrees well with the steady-state assumptions and Floquet excitations. When the pump frequency is low, the spectrum extracts real-time dynamics of the particle-hole continuum in momentum space. These results verify the correctness of our theory and demonstrate the breadth of physical problems that tr-RIXS could shed light on.
description: 14 pages, 7 figures
Third boundary of the Shastry-Sutherland Model by Numerical Diagonalization
Creators: name: Nakano, Hiroki
name: Sakai, Toru
Publisher: name: arXiv
Year: 2018
Subjects: subject: Strongly Correlated Electrons (cond-mat.str-el)
subject: Materials Science (cond-mat.mtrl-sci)
subject: Statistical Mechanics (cond-mat.stat-mech)
subject: FOS: Physical sciences

description: The Shastry-Sutherland model --- the $S=1/2$ Heisenberg antiferromagnet on the square lattice accompanied by orthogonal dimerized interactions --- is studied by the numerical-diagonalization method. Large-scale calculations provide results for larger clusters that have not been reported yet. The present study successfully captures the phase boundary between the dimer and plaquette-singlet phases and clarifies that the spin gap increases once when the interaction forming the square lattice is increased from the boundary. Our calculations strongly suggest that in addition to the edge of the dimer phase given by $J_{2}/J_{1}\sim 0.675$ and the edge of the N$\acute{\rm e}$el-ordered phase given by $J_{2}/J_{1}\sim 0.76$, there exists a third boundary ratio $J_{2}/J_{1}\sim 0.70$ that divides the intermediate region into two parts, where $J_{1}$ and $J_{2}$ denote dimer and square-lattice interactions, respectively.
description: 5 pages, 8 figures, to be published in J. Phys. Soc. Jpn
Triple prompt $J/ψ$ hadroproduction as a hard probe of multiple-parton scatterings
Creators: name: Shao, Hua-Sheng
name: Zhang, Yu-Jie
Publisher: name: arXiv
Year: 2019
Subjects: subject: High Energy Physics - Phenomenology (hep-ph)
subject: High Energy Physics - Experiment (hep-ex)
subject: FOS: Physical sciences

description: We propose that the process of triple prompt $J/ψ$ hadroproduction is a very clean hard probe of multiple-parton scatterings at high-energy hadron colliders, especially the least known triple-parton scattering. A first complete study is carried out by considering single-, double-, and triple-parton scatterings coherently. Our calculation shows that it is a golden channel to probe double- and triple-parton scatterings, as the single-parton scattering is strongly suppressed. The predictions of the (differential) cross sections in proton-proton collisions at the LHC and the future higher-energy hadron colliders are given. Our study shows that its measurement is already feasible with the existing data collected during the period of the LHC run 2. A method is proposed to extract the triple-parton scattering contribution, and therefore it paves a way to study the possible triple-parton correlations in a proton.
description: 6 pages, 3 figures, 1 table; v2: match to the journal version
Where was past low-entropy?
Creators: name: Rovelli, Carlo
Publisher: name: arXiv
Year: 2018
Subjects: subject: General Relativity and Quantum Cosmology (gr-qc)
subject: Cosmology and Nongalactic Astrophysics (astro-ph.CO)
subject: FOS: Physical sciences

description: I identify where precisely is low-entropy located in the early universe, arguing that some common answers overplay the role of gravity. I discuss the available interpretations of the "improbability" of this early low-entropy.
description: The revision contains a new section detailing the entropy evolution and answering a question posed by a cosmologist: how can the system go out of equilibrium is the entropy remains constant? 9 pages, 3 figures
Is there Anomalous J/psi Suppression in Present-day Heavy-ion Collisions?
Creators: name: Gavai, R. V.
name: Gupta, Sourendu
Publisher: name: arXiv
Year: 1997
Subjects: subject: High Energy Physics - Phenomenology (hep-ph)
subject: FOS: Physical sciences

description: We re-analyse the data on J/psi cross sections for proton-nucleus and nucleus-nucleus collisions obtained by the CERN experiments NA38, NA51 and NA50. Our systematic analysis of error propagation shows that the no anomalous suppression of J/psi in Pb-Pb collisions can be substantiated at 95% confidence limit. The significance of the NA50 result would be enhanced by more precise p-A data on J/psi cross sections.
description: 14 pages including 4 Figures, LaTeX, Added a footnote and a reference number. Conclusions unaffected. To appear in Phys. Lett. B
Effective Interactions and Volume Energies in Charged Colloids: Linear Response Theory
Creators: name: Denton, A. R.
Publisher: name: arXiv
Year: 2000
Subjects: subject: Soft Condensed Matter (cond-mat.soft)
subject: FOS: Physical sciences

description: Interparticle interactions in charge-stabilized colloidal suspensions, of arbitrary salt concentration, are described at the level of effective interactions in an equivalent one-component system. Integrating out from the partition function the degrees of freedom of all microions, and assuming linear response to the macroion charges, general expressions are obtained for both an effective electrostatic pair interaction and an associated microion volume energy. For macroions with hard-sphere cores, the effective interaction is of the DLVO screened-Coulomb form, but with a modified screening constant that incorporates excluded volume effects. The volume energy -- a natural consequence of the one-component reduction -- contributes to the total free energy and can significantly influence thermodynamic properties in the limit of low-salt concentration. As illustrations, the osmotic pressure and bulk modulus are computed and compared with recent experimental measurements for deionized suspensions. For macroions of sufficient charge and concentration, it is shown that the counterions can act to soften or destabilize colloidal crystals.
description: 14 pages, including 3 figures
Passive alignment stability and auto-alignment of multipass amplifiers based on Fourier transforms
Creators: name: Schuhmann, Karsten
name: Kirch, Klaus
name: Knecht, Andreas
name: Marszalek, Miroslaw
name: Nez, Francois
name: Nuber, Jonas
name: Pohl, Randolf
name: Schulthess, Ivo
name: Sinkunaite, Laura
name: Zeyen, Manuel
name: Antognini, Aldo
Publisher: name: arXiv
Year: 2019
Subjects: subject: Optics (physics.optics)
subject: FOS: Physical sciences

description: The stability properties of Fourier-based multipass amplifier to misalignments (tilts) of its optical components has been investigated. For this purpose, a method to quantify the sensitivity to tilts based on the amplifier small signal gain has been elaborated and compared with measurements. To improve on the tilt stability by more than an order of magnitude a simple auto-alignment system has been proposed and tested. This study, combined with other investigations devoted to the stability of the output beam to variations of aperture and thermal lens effects of the active medium, qualifies the Fourier-based amplifier for the high-energy and the high-power sector.
description: 10 pages, 11 figures
IACT event reconstruction with deep learning: some progress, lessons learned, and outlook from CTLearn
Creators: name: Nieto, Daniel
name: Miener, Tjark
Publisher: name: Zenodo
Year: 2022

description: CTLearn is a project that aims at IACT event reconstruction through the usage deep-learning models. The associated software packages include modules for loading and manipulating IACT data, and handling the training and test of deep-learning architectures with TensorFlow, using pixel-wise camera data as input. In this contribution we will comment on the challenges we faced so far, the lessons learned, our latest results, and our plans for the future.
description: The research here presented has been partially supported by the former Spanish Ministry of Economy, Industry, and Competitiveness / ERDF grants FPA2015-73913-JIN and FPA2017-82729-C6-3-R, the Spanish Ministry of Science and Innovation grant PID2019-104114RB-C32, NSF awards PHY-1229205, 1229792, and 1607491, and the European Science Cluster of Astronomy & Particle Physics ESFRI Research Infrastructures funded by the European Union's Horizon 2020 research and innovation program under Grant Agreement no. 824064. The authors acknowledge support from Google LLC through the Google Summer of Code program and NVIDIA Corporation with the donation of a Titan X Pascal GPU used for part of this research.
Holon Pair Condensation and Phase Diagram of High T_c Cuprates
Creators: name: Gimm, T. -H.
name: Lee, S. -S.
name: Hong, S. -P.
name: Salk, S. -H. Suck
Publisher: name: arXiv
Year: 1998
Subjects: subject: Superconductivity (cond-mat.supr-con)
subject: FOS: Physical sciences

description: A possibility of holon (boson) pair condensation is explored for hole doped high T_c cuprates, by using the U(1) slave-boson representation of the t-J Hamiltonian with the inclusion of hole-hole repulsion. A phase diagram of the hole doped high T_c cuprates is deduced by allowing both the holon pairing and spinon pairing. It is shown that the spin gap size remains nearly unchanged below the holon pair condensation temperature. We find that the s-wave holon pairing under the condition of d-wave singlet pairing is preferred, thus allowing d-wave hole pairing.
description: 6 pages, 3 figures
Measuring the two-photon decay width of Intermediate-mass Higgs at a photon-photon collider
Creators: name: Ohgaki, T.
name: Takahashi, T.
name: Watanabe, I.
Publisher: name: arXiv
Year: 1997
Subjects: subject: High Energy Physics - Phenomenology (hep-ph)
subject: FOS: Physical sciences

description: Feasibility of a measurement of the partial decay width of the intermediate-mass Higgs boson into two photons at a photon-photon collider is studied by a simulation. The QCD radiative correction for quark pair background processes is taken into account for the realistic background estimation. It is found that the two-photon decay width can be measured with the statistical error of 7.6 % with about one year of experiment. The impact of the measurement of the two-photon decay width to look for the new physics beyond is demonstrated.
description: 20 pages, 7 figures
Stringy Toda Cosmologies
Creators: name: Kaloper, Nemanja
Publisher: name: arXiv
Year: 1996
Subjects: subject: High Energy Physics - Theory (hep-th)
subject: General Relativity and Quantum Cosmology (gr-qc)
subject: FOS: Physical sciences

description: We discuss a particular stringy modular cosmology with two axion fields in seven space-time dimensions, decomposable as a time and two flat three-spaces. The effective equations of motion for the problem are those of the $SU(3)$ Toda molecule, and hence are integrable. We write down the solutions, and show that all of them are singular. They can be thought of as a generalization of the Pre-Big-Bang cosmology with excited internal degrees of freedom, and still suffering from the graceful exit problem. Some of the solutions however show a rather unexpected property: some of their spatial sections shrink to a point in spite of winding modes wrapped around them. We also comment how more general, anisotropic, solutions, with fewer Killing symmetries can be obtained with the help of STU dualities.
description: 22 pages, latex, no figures. Several minor typos corrected
"Deviant axloqqa ekzistensial-gumanistik yondashuv"
Creators: name: Abdullayev Feruzbek, Bobojonova Zuhra.
Publisher: name: Zenodo
Year: 2024

description: Annotatsiya:Ushbu maqolada deviant axloq vakillariga ekzistensional-gumanistik yondashuv va ularga shu jabhalar bo’yicha ijtimoiy-psixologik yordam ko’rsatish yoritib borilgan.

Kalit so’zlar: xarakter, insoniylik,ehtiyojlar piramidasi, avtoritar xarakter, konformizm, destruktiv.

    Abstract:In this article, the existential-humanistic approach to representatives of deviant morality and providing them with socio-psychological support in these aspects in higlighted.

 Key words: character, humanity, pyramid of needs, autohoritorian character, conformism, destructive.

 

Abstract: In this article, the existential-humanistic approach to the representatives of deviant morality and providing them with social-psychological assistance in these aspects are covered.

Key words: character, humanity, pyramid of needs, authoritarian character, conformism, destructive.
Transport in finite incommensurate Peierls-Fröhlich systems
Creators: name: Oxman, Luis E.
name: Mucciolo, Eduardo R.
name: Krive, Ilya V.
Publisher: name: arXiv
Year: 1999
Subjects: subject: Mesoscale and Nanoscale Physics (cond-mat.mes-hall)
subject: High Energy Physics - Theory (hep-th)
subject: FOS: Physical sciences

description: We show that the conductance of a one-dimensional, finite charge-density-wave (CDW) system of the incommensurate type is not renormalized at low temperatures and depends solely on the leads. Within our formalism, we argue that a similar behavior (perfect conductance) should occur for a wide class of one-dimensional strongly correlated finite systems where interactions are current dependent. The universal conductance is related to the presence of an (anomalous) chiral symmetry. The fundamental role played by the finiteness of the sample and the adiabaticity of the contacts to Fermi-liquid leads is evidenced.
description: RevTex 3.1, 6 pages, no figures, submitted to Phys. Rev. B
On Global Patterns of Interlingual Influence
Creators: name: Danchev, Andrei
Publisher: name: Selected papers on theoretical and applied linguistics
Year: 1989

description: (no abstract available)
description: Selected papers on theoretical and applied linguistics, Vol 2 (1989): 2nd Symposium on English and Greek: Description and/or Comparison of the Two Languages, Thessaloniki 28-30 March 1988
Some Typological Characteristics of English and Greek
Creators: name: Gogos, Alexander B.
Publisher: name: Selected papers on theoretical and applied linguistics
Year: 1989

description: In this brief paper I intend to take a look at the basic typological characteristics of English and Greek. There have so far been at least three major ways in which languages have been classified. One of them is with purely morpho­logical considerations; it examines the way in which the word is structured. The next classification goes a step forward: it examines the way in which the constituents are ordered within the sentence. And the next classification goes a further step forward: it is based on the way clauses are ordered within a sentence. It has been found that some languages are left-branching and others are right branching, meaning that the recursive devices of a language are placed to the left or right of a head. What should be said at the outset is that languages in many ways are not entirely uniform, and a language, while predominantly belonging to one type, may have characteristics that predomi­nantly belong to another type.
description: Selected papers on theoretical and applied linguistics, Vol 2 (1989): 2nd Symposium on English and Greek: Description and/or Comparison of the Two Languages, Thessaloniki 28-30 March 1988
Probing Pauli Blocking Factors in Quantum Pumps with Broken Time-Reversal Symmetry
Creators: name: Wagner, Mathias
Publisher: name: arXiv
Year: 2000
Subjects: subject: Mesoscale and Nanoscale Physics (cond-mat.mes-hall)
subject: FOS: Physical sciences

description: A recently demonstrated quantum electron pump is discussed within the framework of photon-assisted tunneling. Due to lack of time-reversal symmetry, different results are obtained for the pump current depending on whether or not final-state Pauli blocking factors are used when describing the tunneling process. Whilst in both cases the current depends quadratically on the driving amplitude for moderate pumping, a marked difference is predicted for the temperature dependence. With blocking factors the pump current decreases roughly linearly with temperature until k_B T ~ \hbarωis reached, whereas without them it is unaffected by temperature, indicating that the entire Fermi sea participates in the electronic transport.
description: 4 pages in RevTex4 (beta4), 6 figures; status: to appear in PRL