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Using the semiclassical Boltzmann transport theory, we analytically consider dc charge transport in gapless electron-hole (both chiral and non-chiral) systems in the presence of resistive scattering due to static disorder arising from…

无序系统与神经网络 · 物理学 2015-05-11 S. Das Sarma , E. H. Hwang

New recent results in supersymmetric gauge theories based on holomorphy and symmetry considerations are extended to the case where the gauge coupling constant is given by the real part of a chiral superfield. We assume here that its…

高能物理 - 理论 · 物理学 2009-10-28 E. Dudas

Weyl semimetals realize massless relativistic fermions with two Weyl nodes separated in energy and momentum space, whose low-energy physics is described by Dirac fermions with an axial gauge constant. Here, we study their electromagnetic…

介观与纳米尺度物理 · 物理学 2023-01-10 Tatsuya Amitani , Yusuke Nishida

We study, using a gravity dual, the finite temperature dynamics of $SU(N_c)$ gauge theory for large $N_c$, with fundamental quark flavours in a quenched approximation, in the presence of a fixed R--charge under a global R--current. We…

高能物理 - 理论 · 物理学 2011-06-09 Tameem Albash , Veselin Filev , Clifford V. Johnson , Arnab Kundu

The existence of new transport phenomena associated to the presence of quantum anomalies has atracted very recently the attention of theorist. These transport coefficient have very interesting properties, for example, they do not…

高能物理 - 理论 · 物理学 2013-07-03 Francisco Pena-Benitez

We investigate the dynamics of a single tracer exploring a course of fixed obstacles in the vicinity of the percolation transition for particles confined to the infinite cluster. The mean-square displacement displays anomalous transport,…

统计力学 · 物理学 2015-03-17 Markus Spanner , Felix Höfling , Gerd Schröder-Turk , Klaus Mecke , Thomas Franosch

The fluid in global equilibrium must fulfill some constraints. These constraints can be derived from quantum statistical theory or kinetic theory. In this paper we will show that how these constraints can be applied to determine the…

高能物理 - 唯象学 · 物理学 2022-03-29 Shi-Zheng Yang , Jian-Hua Gao , Zuo-Tang Liang

Chiral active fluids are known to have anomalous transport properties such as the so-called odd viscosity. In this paper, we provide a microscopic mechanism for how such anomalous transport coefficients can emerge. We construct an…

We study fermion number non-conservation (or chirality breaking) in Abelian gauge theories at finite temperature. We consider the presence of a chemical potential $\mu$ for the fermionic charge, and monitor its evolution with real-time…

高能物理 - 理论 · 物理学 2020-06-30 Daniel G. Figueroa , Adrien Florio , Mikhail Shaposhnikov

We consider thermal plasmas in a large class of superconformal gauge theories described by a holographic dual geometry of the form $AdS_5\times M_5$. In particular, we demonstrate that all of the thermodynamic properties and hydrodynamic…

高能物理 - 理论 · 物理学 2008-11-26 Alex Buchel , Robert C. Myers , Miguel F. Paulos , Aninda Sinha

We show that the chiral anomaly of quantum field theories with Dirac fermions subject to an axial background field is an inherent property of kinematics of a perfect classical fluid. Celebrated Beltrami flows (stationary solutions of Euler…

高能物理 - 理论 · 物理学 2022-06-29 P. B. Wiegmann , A. G. Abanov

We present data of transport measurements through a metallic nanobridge exhibiting diffusive electron transport. A logarithmic temperature dependence and a zero-bias anomaly in the differential conductance are observed, independent of…

介观与纳米尺度物理 · 物理学 2020-04-20 H. B. Weber , R. Häussler , H. v. Löhneysen , J. Kroha

This paper begins with a summary of a powerful formalism for the study of electronic states in condensed matter physics called "Gauge Theory of States/Phases of Matter." The chiral anomaly, which plays quite a prominent role in that…

强关联电子 · 物理学 2023-04-12 Jürg Fröhlich

We discuss general features of charge transport in non-relativistic classical field theories invariant under non-abelian unitary Lie groups by examining the full structure of two-point dynamical correlation functions in grand-canonical…

统计力学 · 物理学 2021-01-04 Žiga Krajnik , Enej Ilievski , Tomaž Prosen

We study the holographic duals of four-dimensional field theories with 1-form global symmetries, both discrete and continuous. Such higher-form global symmetries are associated with antisymmetric tensor gauge fields in the bulk. Various…

高能物理 - 理论 · 物理学 2020-08-19 Diego M. Hofman , Nabil Iqbal

Our goal is to examine the role of anomalies in the hydrodynamic regime of field theories. We employ methods based on gauge/gravity duality to examine R-charge anomalies in the hydrodynamic regime of stronly t'Hooft coupled, large N, N = 4…

高能物理 - 唯象学 · 物理学 2009-11-11 G. M. Newman

We provide firm convincing evidence that the energy transport in a one-dimensional gas of elastically colliding free particles of unequal masses is anomalous, i.e. the Fourier Law does not hold. Our conclusions are based on the analysis of…

统计力学 · 物理学 2009-11-07 Giulio Casati , Tomaz Prosen

We study equilibrium transport properties of massless Dirac fermions at finite temperature and chemical potential in spacetime accompanied by torsion, which in four dimensions couples with Dirac fermions as an axial gauge field. In…

高能物理 - 理论 · 物理学 2022-12-06 Tatsuya Amitani , Yusuke Nishida

We present a simple analytic gravitational solution which describes the holographic dual of a 2+1-dimensional conductor which goes beyond the usual linear response. In particular it includes Joule heating. We find that the nonlinear…

高能物理 - 理论 · 物理学 2013-12-16 Gary T. Horowitz , Nabil Iqbal , Jorge E. Santos

We investigate electrical transport in a three-dimensional massless Dirac fermion model that describes a Dirac semimetal state realized in topological materials. We derive a set of interdependent diffusion equations with eight local degrees…

介观与纳米尺度物理 · 物理学 2016-06-09 Nobuyuki Okuma , Masao Ogata