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Ultracold neutral bosons in a rapidly rotating atomic trap have been predicted to exhibit fractional quantum Hall-like states. We describe how the composite fermion theory, used in the description of the fractional quantum Hall effect for…

介观与纳米尺度物理 · 物理学 2007-05-23 N. Regnault , C. C. Chang , Th. Jolicoeur , J. K. Jain

Quantum transport can be simulated with ultracold atoms by employing spin superpositions of fermions interacting with spin-dependent potentials. Here we first extend this scheme to an arbitrary number of spin components so as to allow…

量子气体 · 物理学 2020-09-23 Sho Nakada , Shun Uchino , Yusuke Nishida

A microscopic theory of optical transitions in quantum dots with carrier-phonon interaction is developed. Virtual transitions into higher confined states with acoustic phonon assistance add a quadratic phonon coupling to the standard linear…

凝聚态物理 · 物理学 2009-11-10 E. A. Muljarov , R. Zimmermann

We review recent progresses in the theoretical description of correlation and quantum fluctuation phenomena in charge transport through single molecules, quantum dots, and quantum wires. A variety of physical phenomena is addressed,…

介观与纳米尺度物理 · 物理学 2010-06-28 S. Andergassen , V. Meden , H. Schoeller , J. Splettstoesser , M. R. Wegewijs

We present a technique to calculate the transport properties through one-dimensional models of molecular wires. The calculations include inelastic electron scattering due to electron-lattice interaction. The coupling between the electron…

凝聚态物理 · 物理学 2009-10-31 H. Ness , S. A. Shevlin , A. J. Fisher

We calculate the normal modes of vibration in jammed sphere packings to obtain the energy diffusivity, a spectral measure of transport. At the boson peak frequency, we find an Ioffe-Regel crossover from a diffusivity that drops rapidly with…

软凝聚态物质 · 物理学 2009-02-16 Ning Xu , Vincenzo Vitelli , Matthieu Wyart , Andrea J. Liu , Sidney R. Nagel

The work presents the extended theoretical model of the electrical conductance in non-magnetic and magnetic nano-size point contacts. The developed approach describes diffusive, quasi-ballistic, ballistic and quantum regimes of the…

介观与纳米尺度物理 · 物理学 2017-10-03 Artur Useinov , Hsiu-Hau Lin , Niazbeck Useinov , Lenar Tagirov

In this work, we put forward a generalized input-output method (GIOM) for studying charge transport in molecular junctions accounting for strong electron-vibration interactions and including electronic and phononic environments. The method…

量子物理 · 物理学 2020-04-15 Junjie Liu , Dvira Segal

This tutorial article gives an introduction to the methods needed to treat interacting electrons in a quantum wire with a single occupied band. Since one-dimensional Fermions cannot be described in terms of noninteracting quasiparticles,…

介观与纳米尺度物理 · 物理学 2016-08-31 Hermann Grabert

A current can be induced in a closed device by changing control parameters. The amount $Q$ of particles that are transported via a path of motion, is characterized by its expectation value $<Q>$, and by its variance $Var(Q)$. We show that…

量子物理 · 物理学 2010-01-18 Maya Chuchem , Doron Cohen

We provide an accurate calculation of the energy spectrum of three atoms interacting through a contact force in a one-dimensional harmonic trap, considering both spinful fermions and spinless bosons. We use fermionic energies as a benchmark…

量子气体 · 物理学 2014-03-04 Pino D'Amico , Massimo Rontani

Electrical quantum conductors coupled to microwave resonators have in the last decade emerged as a versatile testbed for controllable light-matter interaction on the nanometer scale. Recent experimental progress with high impedance…

介观与纳米尺度物理 · 物理学 2019-07-17 T. L. van den Berg , P. Samuelsson

The linear transport properties of a model molecular transistor with electron-electron and electron-phonon interactions were investigated analytically and numerically. The model takes into account phonon modulation of the electronic energy…

介观与纳米尺度物理 · 物理学 2007-05-23 P. S. Cornaglia , D. R. Grempel , H. Ness

As a step towards a more realistic modeling of vibrations in single-molecule devices, we investigate the effects of charge-dependent vibrational frequencies and anharmonic potentials on electronic transport. For weak phonon relaxation, we…

介观与纳米尺度物理 · 物理学 2007-05-23 Jens Koch , Felix von Oppen

We consider resonant transport through a molecular quantum dot coupled to a local vibration mode. Applying the non-equilibrium Green function technique in the polaron representation, we develop a non-perturbative scheme to calculate the…

介观与纳米尺度物理 · 物理学 2009-11-13 Alex Zazunov , Thierry Martin

A microscopic theory for the interaction of carriers with LO phonons is used to study the ultrafast carrier dynamics in nitride-based semiconductor quantum dots. It is shown that the efficiency of scattering processes is directly linked to…

介观与纳米尺度物理 · 物理学 2009-11-11 J. Seebeck , T. R. Nielsen , P. Gartner , F. Jahnke

The role of multimode vibrational dynamics in electron transport through single molecule junctions is investigated. The study is based on a generic model, which describes charge transport through a single molecule that is attached to metal…

介观与纳米尺度物理 · 物理学 2010-10-26 R. Härtle , C. Benesch , M. Thoss

We theoretically investigate the transport properties of a molecule embedded in one arm of a mesoscopic Aharonov-Bohm interferometer. Due to the presence of phonons the molecule level position ($\epsilon_d$) and the electron-electron…

介观与纳米尺度物理 · 物理学 2015-05-18 Jong Soo Lim , Rosa Lopez , Gloria Platero , Pascal Simon

We consider the scattering matrix approach to quantum electron transport in meso- and nano-conductors. This approach is an alternative to the more conventional kinetic equation and Green's function approaches, and often is more efficient…

介观与纳米尺度物理 · 物理学 2015-04-09 G. B. Lesovik , I. A. Sadovskyy

Building on the recent success of a quantum-classical method for computing transport properties in the Holstein model with a single phonon mode [P. Mitri\'c et al., Phys. Rev. B ${\bf 111}$, L161105 (2025)], we now assess its reliability in…

强关联电子 · 物理学 2026-04-08 Darko Tanasković , Maksim Makrushin , Petar Mitrić
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