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相关论文: Holographic interaction effects on transport in Di…

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In the Fermi liquid description of metals, electrical and thermoelectric transport coefficients are linked by robust relations which can be challenged by strong interactions or when the electron liquid enters a different regime. These…

介观与纳米尺度物理 · 物理学 2020-05-19 Vicente Arjona , Juan Borge , María A. H. Vozmediano

The power-law increase of the conductivity with temperature in the nominally insulating regime, recently reported for the dilute two-dimensional holes [cond-mat/0603053], is found to systematically vary with the carrier density. Based on…

介观与纳米尺度物理 · 物理学 2007-05-23 Jian Huang , D. S. Novikov , D. C. Tsui , L. N. Pfeiffer , K. W. West

We consider holographic cosmological models of dark energy in which the infrared cutoff is set by the Hubble's radius. We show that any interacting dark energy model with a matter like term able to alleviate the coincidence problem (i.e.,…

宇宙学与河外天体物理 · 物理学 2012-07-03 Iván Durán , Luca Parisi

We study the electric and thermal transport of the Dirac carriers in monolayer graphene using the Boltzmann-equation approach. Motivated by recent thermopower measurements [F. Ghahari, H.-Y.~Xie, T. Taniguchi, K. Watanabe, M.~S.~Foster, and…

介观与纳米尺度物理 · 物理学 2016-05-03 Hong-Yi Xie , Matthew S. Foster

We consider transport of heat and charge in holographic lattices which are phases of strongly coupled matter in which translations are broken explicitly. In these systems, we study a spontaneous density wave that breaks translations…

高能物理 - 理论 · 物理学 2019-06-26 Aristomenis Donos , Christiana Pantelidou

Semi-Dirac semimetals have received enthusiastic research both theoretically and experimentally in the recent years. Due to the anisotropic dispersion, its physical properties are highly direction-dependent. In this work we employ the…

介观与纳米尺度物理 · 物理学 2022-03-08 Shihao Bi , Yiting Deng , Yan He , Peng Li

We exhibit an interaction-driven metal-insulator quantum phase transition in a holographic model. Use of a helical lattice enables us to break translation invariance while preserving homogeneity. The metallic phase is characterized by a…

高能物理 - 理论 · 物理学 2013-01-22 Aristomenis Donos , Sean A. Hartnoll

The thermodynamics of a scheme of dark matter-dark energy interaction is studied considering a holographic model for the dark energy in a flat Friedmann-Lemaitre-Robertson- Walker background. We obtain a total entropy rate for a general…

高能物理 - 理论 · 物理学 2016-01-05 Fabiola Arevalo , Paulo Cifuentes , Francisco Pena

Spatially separated electron systems remain strongly coupled by electron-electron interactions even when they cannot exchange particles, provided that the layer separation d is comparable to a characteristic distance l between charge…

We study the thermoelectric transport under shear strain in two spatial dimensional quantum matter using the holographic duality. General analytic formulae for the DC thermoelectric conductivities subjected to finite shear strain are…

高能物理 - 理论 · 物理学 2022-12-28 Teng Ji , Li Li , Hao-Tian Sun

We analyze electrostatic potentials in the holographic Schwinger effect. The potential barrier for the pair production is estimated by a static potential consisting of static mass energies, an electric potential from an external…

高能物理 - 理论 · 物理学 2015-06-15 Yoshiki Sato , Kentaroh Yoshida

The Seebeck coefficient is examined for two-dimensional Dirac electrons in the three-quarter filled organic conductor alpha-(BEDT-TTF)_2I_3 under hydrostatic pressure, where the Seebeck coefficient is proportional to the ratio of the…

介观与纳米尺度物理 · 物理学 2024-04-10 Yoshikazu Suzumura , Takao Tsumuraya , Masao Ogata

We theoretically study intrinsic superconductivity in doped Dirac semimetals. Dirac semimetals host bulk Dirac points, which are formed by doubly degenerate bands, so the Hamiltonian is described by a $4 \times 4$ matrix and six types of…

超导电性 · 物理学 2016-07-19 Tatsuki Hashimoto , Shingo Kobayashi , Yukio Tanaka , Masatoshi Sato

The temperature dependence of Coulomb blockade peaks of a one dimensional quantum dot is calculated. The Coulomb interaction is treated microscopically using the Luttinger liquid model. The electron interaction is assumed to be…

介观与纳米尺度物理 · 物理学 2017-08-23 T. Kleimann , M. Sassetti , B. Kramer

It is important to understand the mechanism of high-temperature superconductivity. It is obvious that the interaction with large energy scale is responsible for high critical temperature $T_c$. The Coulomb interaction is one of candidates…

强关联电子 · 物理学 2015-03-13 Takashi Yanagisawa

In this study, we investigate the conductivity of a two-dimensional (2D) system in HgTe quantum well comprising two types of carriers with linear and quadratic spectra, respectively. The interactions between the two-dimensional Dirac holes…

介观与纳米尺度物理 · 物理学 2024-01-03 G. M. Gusev , A. D. Levin , E. B. Olshanetsky , Z. D. Kvon , V. M. Kovalev , M. V. Entin , N. N. Mikhailov

Dirac electrons in a single-component molecular conductor [Pd(dddt)$_2$] under pressure have been examined using a tight-binding model which consists of HOMO (Highest Occupied Molecular Orbital) and LUMO (Lowest Unoccupied Molecular…

材料科学 · 物理学 2017-04-25 Reizo Kato , Yoshikazu Suzumura

Motivated by the results of recent thermoelectric effect studies, we show the effects of Coulomb interactions on the Seebeck coefficient based on an extended Hubbard model that describes the electronic states of a slightly doped organic…

介观与纳米尺度物理 · 物理学 2020-06-12 Daigo Ohki , Yukiko Omori , Akito Kobayashi

Effects of collective modes on thermoelectric properties of a charge density system is studied. We derive the temperature dependence of thermoelectric power and thermal conductivity by applying the linear response theory to Fr\"ohlich…

其他凝聚态物理 · 物理学 2007-05-23 Hiroyuki Yoshimoto , Susumu Kurihara

Holographic quantum matter exploits the AdS/CFT correspondence to study systems in condensed matter physics. An example of these systems are strongly correlated semimetals, which feature a rich phase diagram structure. In this work, we…

高能物理 - 理论 · 物理学 2024-06-04 Sebastián Bahamondes , Ignacio Salazar Landea , Rodrigo Soto-Garrido