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相关论文: Phenomenological characterisation of semi-holograp…

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An introductory survey of the theoretical ideas and calculations and the experimental results which depart from Landau Fermi-liquids is presented. Common themes and possible routes to the singularities leading to the breakdown of Landau…

强关联电子 · 物理学 2009-11-07 C. M. Varma , Z. Nussinov , W. van Saarloos

We consider a perturbed version of a very simple and exactly solvable model that supports Fermi arcs and pseudogap in its ground state and excitation spectrum, which includes Hubbard-like interactions in both momentum and real spaces. We…

强关联电子 · 物理学 2023-08-01 Ruojun Wang , Kun Yang

Techniques arising from string theory can be used to study assemblies of strongly-interacting fermions. Via this `holographic duality', various strongly-coupled many body systems are solved using an auxiliary theory of gravity. Simple…

高能物理 - 理论 · 物理学 2015-05-20 Thomas Faulkner , Nabil Iqbal , Hong Liu , John McGreevy , David Vegh

We propose a phenomenological approach to quantum liquids of particles obeying generalized statistics of a fermionic type, in the spirit of the Landau Fermi liquid theory. The approach is developed for fractional exclusion statistics. We…

凝聚态物理 · 物理学 2009-10-31 Serguei B. Isakov

We argue that topological Kondo insulators can also have 'intrinsic' topological order associated with fractionalized excitations on their surfaces. The hydridization between the local moments and conduction electrons can weaken near the…

强关联电子 · 物理学 2016-03-09 Alex Thomson , Subir Sachdev

We study a holographic toy model by considering a probe fermion of finite charge density in an anisotropic background. By computing the fermionic spectral function numerically, we observed that the system exhibits some interesting…

高能物理 - 理论 · 物理学 2022-04-22 Wadbor Wahlang

Interacting quantum many-body systems constitute a fascinating playground for researchers since they form quantum liquids with correlated ground states and low-lying excitations, which exhibit universal behaviour. In fermionic systems, such…

Interacting electrons can form metallic states beyond the Fermi liquid paradigm, a conceptual frontier of many-body physics mainly explored via bulk thermodynamics and transport. In contrast, the microscopics of anomalous single-particle…

We study Fermi liquids with a Fermi surface that lacks continuous rotational invariance, and in the presence of an arbitrary quartic interaction. We obtain the expressions of the generalized static susceptibilities that measure the linear…

强关联电子 · 物理学 2017-07-24 Pablo Rodríguez-Ponte , Nicolás Grandi , Daniel C. Cabra

A lattice model of spinless interacting electrons is used to formulate the Landau theory of the Fermi liquid to electron glass quantum phase transition. We demonstrate that the presence of additional random site energies does not affect the…

强关联电子 · 物理学 2009-11-07 Denis Dalidovich , V. Dobrosavljevic

We study the effects of a superconducting condensate on holographic Fermi surfaces. With a suitable coupling between the fermion and the condensate, there are stable quasiparticles with a gap. We find some similarities with the…

高能物理 - 理论 · 物理学 2010-04-08 Thomas Faulkner , Gary T. Horowitz , John McGreevy , Matthew M. Roberts , David Vegh

We show that there is a close correspondence between the physical properties of holographic metals near charged black holes in anti-de Sitter (AdS) space, and the fractionalized Fermi liquid phase of the lattice Anderson model. The latter…

高能物理 - 理论 · 物理学 2014-11-21 Subir Sachdev

In this paper, we investigate a holographic model of superconductor with hidden Fermi surfaces, which was defined by the logarithmic violation of area law of entanglement entropy. We works in fully back-reacted background using standard…

高能物理 - 理论 · 物理学 2013-11-19 ZhongYing Fan

Quantum liquids are characterized by the distinctive properties such as the low temperature behavior of heat capacity and the spectrum of low-energy quasiparticle excitations. In particular, at low temperature, Fermi liquids exhibit the…

高能物理 - 理论 · 物理学 2009-02-07 A. Karch , D. T. Son , A. O. Starinets

We investigate the low-temperature thermoelectric properties of three-dimensional nodal-line semimetals within the semiclassical Boltzmann formalism. Considering short-range interaction between electrons and scattering agents, we calculate…

介观与纳米尺度物理 · 物理学 2020-09-30 Shahin Barati , Saeed H. Abedinpour

The single-particle behavior in $d\geq 1$-dimensional Fermi gases with a large number $N$ of species and strong short-range $s$-wave scattering is discussed in the $2d$ 'tomographic' framework of a (pseudo)holographic correspondence with a…

强关联电子 · 物理学 2025-02-25 D. V. Khveshchenko

We present an alternative way of computing nonrelativistic single-particle spectra from holography. To this end, we introduce a mass gap in a holographic Dirac semimetal and subsequently study the nonrelativistic limit of the resulting…

量子气体 · 物理学 2019-01-16 N. W. M. Plantz , H. T. C. Stoof

We examine the problem of finite Fermi systems having a degenerate single-particle spectrum and show that the Landau approach, applied to such a system, admits the possibility of merging single-particle levels. It is demonstrated that the…

强关联电子 · 物理学 2009-11-13 V. A. Khodel , J. W. Clark , Haochen Li , M. V. Zverev

We analyze the linear response of a half filled Landau level to long wavelength and low frequency driving forces, using Fermi liquid theory for composite fermions. This response is determined by the composite fermions quasi--particle…

凝聚态物理 · 物理学 2009-10-28 Ady Stern , Bertrand I. Halperin

Non-fermi liquid and unconventional quantum critical points (QCP) with strong fractionalization are two exceptional phenomena beyond the classic condensed matter doctrines, both of which could occur in strongly interacting quantum many-body…

强关联电子 · 物理学 2020-07-07 Yichen Xu , Hao Geng , Xiao-Chuan Wu , Chao-Ming Jian , Cenke Xu