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The nonlinear conductance of semiconductor heterostructures and single molecule devices exhibiting Kondo physics has recently attracted attention. We address the observed sample dependence of the measured steady state transport coefficients…

介观与纳米尺度物理 · 物理学 2013-01-14 Enrique Muñoz , C. J. Bolech , Stefan Kirchner

We investigate the effects of stochastic interactions on hydrodynamic correlation functions using the Schwinger-Keldysh effective field theory. We identify new "stochastic transport coefficients" that are invisible in the classical…

高能物理 - 理论 · 物理学 2022-02-21 Akash Jain , Pavel Kovtun

Traditional theories of electron transport in crystals are based on the Boltzmann equation and do not capture physics arising from quantum coherence. We introduce a transport formalism based on ''orbital Wigner functions'', which accurately…

We consider scattering and transport in interacting quantum wires that are connected to leads. Such a setup can be represented by a minimal model of interacting fermions with inhomogeneities in the form of sudden changes in interaction…

强关联电子 · 物理学 2012-09-10 N. Sedlmayr , J. Ohst , I. Affleck , J. Sirker , S. Eggert

Collective modes in two-dimensional electron fluids show an interesting response to a background carrier flow. Surface plasmons propagating on top of a flowing Fermi liquid acquire a non-reciprocal character manifest in a $\pm k$ asymmetry…

介观与纳米尺度物理 · 物理学 2020-01-01 Haoyang Gao , Zhiyu Dong , Leonid Levitov

We present the microscopic Fermi liquid theory for magnetic properties and transport phenomena in interacting electron systems without inversion symmetry both in the normal state and in the superconducting state. Our argument is mainly…

强关联电子 · 物理学 2009-11-11 Satoshi Fujimoto

Motivated by recent experimental findings, we study transport in a simple phenomenological model of a quantum Hall edge system with a gate-voltage controlled constriction lowering the local filling factor. The current backscattered from the…

介观与纳米尺度物理 · 物理学 2011-11-09 Siddhartha Lal

We introduce new classes of hydrodynamic theories inspired by the recently discovered fracton phases of quantum matter. Fracton phases are characterized by elementary excitations (fractons) with restricted mobility. The hydrodynamic…

强关联电子 · 物理学 2020-07-29 Andrey Gromov , Andrew Lucas , Rahul M. Nandkishore

A key step towards dissipationless transport devices is the quantum anomalous Hall effect, which is characterized by an integer quantized Hall conductance in a ferromagnetic insulator with strong spin-orbit coupling. In this work, the…

介观与纳米尺度物理 · 物理学 2013-08-29 Hai-Zhou Lu , Shun-Qing Shen

We derive expressions for the expectation values of the local energy and the local power transferred by an external electrical field to a many-particle system of interacting spinless electrons. In analogy with the definition of the (local)…

量子物理 · 物理学 2016-06-22 Guillermo Albareda , Fabio Lorenzo Traversa , Xavier Oriols

Recent experiments of fluid transport in nano-channels have shown evidence of a coupling between charge-fluctuations in polar fluids and electronic excitations in graphene solids, which may lead to a significant reduction of friction a…

介观与纳米尺度物理 · 物理学 2025-03-30 S. Succi , M. Lauricella , A. Tiribocchi

Electron transport through a nanostructure can be characterized in part using concepts from classical fluid dynamics. It is thus natural to ask how far the analogy can be taken, and whether the electron liquid can exhibit nonlinear…

介观与纳米尺度物理 · 物理学 2013-08-27 Neil Bushong , John Gamble , Massimiliano Di Ventra

Many experimentally relevant quantum spin chains are approximately integrable, and support long-lived quasiparticle excitations. A canonical example of integrable model of quantum magnetism is the XXZ spin chain, for which energy spreads…

强关联电子 · 物理学 2023-02-03 Sarang Gopalakrishnan , Romain Vasseur

Methods of dynamical system's theory are used for numerical study of transport and mixing of passive particles (water masses, temperature, salinity, pollutants, etc.) in simple kinematic ocean models composed with the main Eulerian coherent…

混沌动力学 · 物理学 2015-06-26 M. V. Budyansky , M. Yu. Uleysky , S. V. Prants

The conventional wisdom suggests that transports of conserved quantities in non-integrable quantum many-body systems at high temperatures are diffusive. However, we discover a counterexample of this paradigm by uncovering anomalous…

量子物理 · 物理学 2024-03-27 Ang Yang , Jinlou Ma , Lei Ying

We present the theory of thermoelectric transport in metals with long-lived quasiparticles, carefully addressing the interplay of electron-electron scattering as well as electron-impurity scattering, but neglecting electron-phonon…

强关联电子 · 物理学 2018-06-27 Andrew Lucas , Sankar Das Sarma

Electronic transport is theoretically investigated in laterally confined semiconductor superlattices using the formalism of non-equilibrium Green's functions. The transport properties are calculated for nanowire superlattices of varying…

介观与纳米尺度物理 · 物理学 2014-04-25 Thomas Grange

Within the frame of quantum dissipation theory, we develop a new hierarchical equations of motion theory, combined with the small polaron transformation. We fully investigate the electron transport of a single attractive impurity system…

介观与纳米尺度物理 · 物理学 2013-06-04 Feng Jiang , Shikuan Wang , Hang Xie , Yonghong Yan , YiJing Yan

In this letter we study how deterministic features presented by a system can be used to perform direct transport in a {\it quasi}-symmetric potential and weak dissipative system. We show that the presence of nonhyperbolic regions around…

We theoretically investigate the electron transport properties for a semiconductor quantum wire containing a single finite-size attractive impurity under an external terahertz electromagnetic field illumination in the ballistic limit.…

介观与纳米尺度物理 · 物理学 2009-11-11 Guanghui Zhou , Yuan Li , Fang Cheng , Wenfu Liao