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相关论文: Hydrodynamic pumping of a quantum Fermi liquid in …

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Landau Fermi liquid theory, with its pivotal assertion that electrons in metals can be simply understood as independent particles with effective masses replacing the free electron mass, has been astonishingly successful. This is true…

强关联电子 · 物理学 2008-10-16 N. Manyala , J. F. DiTusa , G. Aeppli , A. P. Ramirez

Control of the Coulomb interaction between single electrons is vital for realizing quantum information processing using flying electrons and, particularly, for the realization of deterministic two-qubit operations. Since the strength of the…

介观与纳米尺度物理 · 物理学 2023-10-20 Gento Yamahata , Nathan Johnson , Akira Fujiwara

Strongly interacting electron systems can provide insight into quantum many-body phenomena, such as Mott insulating behavior and spin liquidity, facilitating semiconductor optimization. The Fermi-Hubbard model is the prototypical model used…

介观与纳米尺度物理 · 物理学 2024-02-08 Sumedh Vangara

We study adiabatic pumping through a quantum dot tunnel-coupled to one normal and one superconducting lead. We generalize a formula which relates the pumped charge through a quantum dot with Coulomb interaction to the instantaneous local…

介观与纳米尺度物理 · 物理学 2007-06-13 Janine Splettstoesser , Michele Governale , Jürgen König , Fabio Taddei , Rosario Fazio

We examine a simple model of proton pumping through the inner membrane of mitochondria in the living cell. We demonstrate that the pumping process can be described using approaches of condensed matter physics. In the framework of this…

介观与纳米尺度物理 · 物理学 2009-11-13 Anatoly Yu. Smirnov , Lev G. Mourokh , Franco Nori

We consider possible superconducting instabilities in a two-dimensional Fermi system with short-ranged repulsive interactions between electrons. The possibility of an unusual superconducting paring due to the Kohn-Luttinger mechanism is…

超导电性 · 物理学 2009-11-07 Victor Galitski , S. Das Sarma

We investigate a mechanism for cooling a lead based on a process that replaces hot electrons by cold ones. The central idea is that a double quantum dot with an inhomogeneous Zeeman splitting acts as energy filter for the transported…

介观与纳米尺度物理 · 物理学 2016-01-20 Robert Hussein , Sigmund Kohler , Fernando Sols

In this work we theoretically study properties of electric current driven by a temperature gradient through a quantum dot/molecule coupled to the source and drain charge reservoirs. We analyze the effect of Coulomb interactions between…

介观与纳米尺度物理 · 物理学 2015-12-01 Natalya A. Zimbovskaya

We have calculated the linear conductance associated with tunneling of individual quasiparticles of primary quantum Hall liquids with filling factors $\nu =1/(2m+1)$ through a system of two antidots in series. On-site Coulomb interaction…

介观与纳米尺度物理 · 物理学 2009-11-13 Dmitri V. Averin , James A. Nesteroff

We consider a hydrodynamic description of transport for generic two dimensional electron systems that lack Galilean invariance and do not fall into the category of Fermi liquids. We study magnetoresistance and show that it is governed only…

强关联电子 · 物理学 2017-11-13 Aavishkar A. Patel , Richard A. Davison , Alex Levchenko

In this paper we study thermo-electric transport in interacting two-dimensional Dirac-type systems using a phenomenological Boltzmann approach. We consider a setup that can accommodate electrons, holes, and collective modes. In the first…

强关联电子 · 物理学 2022-11-30 Kitinan Pongsangangan , T. Ludwig , H. T. C. Stoof , Lars Fritz

A single-component Fermi gas of polarized dipolar particles in a harmonic trap can undergo a mechanical collapse due to the attractive part of the dipole-dipole interaction. This phenomenon can be conveniently manipulated by the shape of…

凝聚态物理 · 物理学 2007-05-23 K. Goral , M. Brewczyk , K. Rzazewski

The interaction between electrons and the vibrational degrees of freedom of a molecular quantum dot can lead to an exponential suppression of the conductance, an effect which is commonly termed Franck-Condon blockade. Here, we investigate…

介观与纳米尺度物理 · 物理学 2017-12-11 Patrick Haughian , Han Hoe Yap , Jiangbin Gong , Thomas L. Schmidt

In a quantum charge pump, the periodic variation of two parameters that affect the phase of the electronic wavefunction causes the flow of a direct current. The operating mechanism of a quantum pump is based on quantum interference, the…

介观与纳米尺度物理 · 物理学 2007-05-23 Saar Rahav , Piet W. Brouwer

Understanding the effects of nonequilibrium on strongly interacting quantum systems is a challenging problem in condensed matter physics. In dimensions greater than one, interacting electrons can often be understood within Fermi-liquid…

强关联电子 · 物理学 2015-05-14 So Takei , Mirco Milletari' , Bernd Rosenow

We present a design for simulating quantum pumping of electrons in a mesoscopic circuit with ultra-cold atoms in a micro-magnetic chip trap. We calculate theoretical results for quantum pumping of both bosons and fermions, identifying…

量子气体 · 物理学 2015-05-14 Kunal K. Das , Seth Aubin

We study collisions between two strongly interacting atomic Fermi gas clouds. We observe exotic nonlinear hydrodynamic behavior, distinguished by the formation of a very sharp and stable density peak as the clouds collide and subsequent…

量子气体 · 物理学 2012-01-18 James Joseph , John E. Thomas , Manas Kulkarni , Alexander G. Abanov

In this work we study the particle conductance of a strongly interacting Fermi gas through a quantum point contact. With an atom-molecule two-channel model, we compute the contribution to particle conductance by both the fermionic atoms and…

量子气体 · 物理学 2017-02-08 Boyang Liu , Hui Zhai , Shizhong Zhang

We present an analytically solvable model for correlated electrons, which is able to capture the major Fermi surface modifications occurring in both hole- and electron-doped cuprates as a function of doping. The proposed Hamiltonian…

强关联电子 · 物理学 2024-10-18 Paul Worm , Matthias Reitner , Karsten Held , Alessandro Toschi

A mechanism of electron-mediated pumping of heat in the absence of net charge transfer is proposed. It may be realized in charge-neutral electron systems, such as graphene, coupled to an external electric potential. The flow of heat in this…

介观与纳米尺度物理 · 物理学 2022-03-14 A. V. Andreev