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We study the combined effects of electron-phonon coupling and dot-lead repulsion in the transport properties of the Anderson-Holstein model. We employ a recently proposed nonperturbative method to calculate the transient response of the…

介观与纳米尺度物理 · 物理学 2015-03-12 E. Perfetto , G. Stefanucci

By using a propagation scheme for current matrices and an auxiliary mode expansion method, we investigate the transient dynamics of a single molecular junction coupled with a vibrational mode. Our approach is based on the Anderson-Holstein…

介观与纳米尺度物理 · 物理学 2016-02-17 Guo-Hui Ding , Bo Xiong , Bing Dong

We investigate the transient effects occurring in a molecular quantum dot described by an Anderson-Holstein Hamiltonian which is instantly coupled to two fermionic leads biased by a finite voltage. In the limit of weak electron-phonon…

介观与纳米尺度物理 · 物理学 2010-03-30 R. -P. Riwar , T. L. Schmidt

Following the Dirac-Frenkel time-dependent variational principle, transient dynamics of a one-dimensional Holstein polaron with diagonal and off-diagonal exciton-phonon coupling in an external electric field is studied by employing the…

量子物理 · 物理学 2017-04-25 Zhongkai Huang , Lipeng Chen , Nengji Zhou , Yang Zhao

We calculate the time dependent nonequilibrium current through a single level quantum dot strongly coupled to a vibrational mode. The nonequilibrium real time dynamics caused by an instantaneous coupling of the leads to the quantum dot is…

In this work, we study the short time dynamics of a molecular junction described by Anderson-Holstein model using full-counting statistics after projective measurement. The coupling between the central quantum dot (QD) and two leads was…

介观与纳米尺度物理 · 物理学 2017-08-16 Gaomin Tang , Yanxia Xing , Jian Wang

The nonequilibrium dynamics of a quantum dot with electron-phonon interactions described by a generalized Holstein model is presented. A combination of methodologies including the reduced density matrix formalism, the multilayer…

强关联电子 · 物理学 2015-06-18 Eli Y. Wilner , Haobin Wang , Michael Thoss , Eran Rabani

We analyze the effects of electron-electron and electron-phonon interactions in the dynamics of a system of two or three electrons that can be trapped to a localized state and detrapped to ab extended band states of a quantum dot using a…

介观与纳米尺度物理 · 物理学 2025-12-11 R. Carmina Monreal

We analyze ultrafast tunneling experiments in which electron transport through a localized orbital is induced by a single cycle THz pulse. We include both electron-electron and electron-phonon interactions on the localized orbital using the…

介观与纳米尺度物理 · 物理学 2020-09-16 Tao Shi , J. Ignacio Cirac , Eugene Demler

We provide a comprehensive solution to the lattice dynamics problem in the two dimensional Holstein model at finite electron density and finite temperature. We work in the physically relevant adiabatic regime and vary the electron-phonon…

强关联电子 · 物理学 2020-02-12 Sauri Bhattacharyya , Saurabh Pradhan , Pinaki Majumdar

The dynamical interplay between electron-electron interactions and electron-phonon coupling is investigated within the Anderson-Holstein model, a minimal model for open quantum systems that embody these effects. The influence of phonons on…

强关联电子 · 物理学 2016-05-25 Hsing-Ta Chen , Guy Cohen , Andrew J. Millis , David R. Reichman

We study the quantum dynamics of small polaron formation and polaron transport through finite quantum structures in the framework of the one-dimensional Holstein model with site-dependent potentials and interactions. Combining Lanczos…

强关联电子 · 物理学 2015-05-19 H. Fehske , G. Wellein , A. R. Bishop

The quantum phase transition between a repulsive Luttinger liquid and an insulating Peierls state is studied in the framework of the one-dimensional spinless Holstein model. We focus on the adiabatic regime but include the full quantum…

强关联电子 · 物理学 2011-03-08 Martin Hohenadler , Holger Fehske , Fakher F. Assaad

We analyze the nonequilibrium dynamics and steady-state behavior of the two-terminal Anderson-Holstein model with a superconducting and a normal conducting lead. In the deep Kondo limit we develop an analytical description if no phonons are…

介观与纳米尺度物理 · 物理学 2013-08-06 K. F. Albrecht , H. Soller , L. Muehlbacher , A. Komnik

The evolution of the properties of a finite density electronic system as the electron-phonon coupling is increased are investigated in the Holstein model using the Dynamical Mean-Field Theory (DMFT). We compare the spinless fermion case, in…

强关联电子 · 物理学 2025-12-12 M. Capone , P. Carta , S. Ciuchi

Waiting time is an important transport quantity that is complementary to average current and its fluctuation. So far all the studies of waiting time distribution (WTD) are limited to steady state transport (either dc or ac). In this work,…

介观与纳米尺度物理 · 物理学 2014-05-21 Gao-Min Tang , Fuming Xu , Jian Wang

We investigate the scattering of an electron by phonons in a small structure between two one-dimensional tight-binding leads. This model mimics the quantum electron transport through atomic wires or molecular junctions coupled to metallic…

强关联电子 · 物理学 2017-02-27 C. Brockt , E. Jeckelmann

We study, at zero temperature, the dynamics of a single electron in a Holstein model augmented by site-diagonal, binary-alloy type disorder. The average over the phonon vacuum and the alloy configurations is performed within a generalized…

强关联电子 · 物理学 2009-11-07 F. X. Bronold , A. Saxena , A. R. Bishop

We study the real-time dynamics of a highly excited charge carrier coupled to quantum phonons via a Holstein-type electron-phonon coupling. This is a prototypical example for the non-equilibrium dynamics in an interacting many-body system…

强关联电子 · 物理学 2015-03-11 F. Dorfner , L. Vidmar , C. Brockt , E. Jeckelmann , F. Heidrich-Meisner

We present an analysis of the transient electronic and transport properties of a nanojunction in the presence of electron-electron and electron-phonon interactions. We introduce a novel numerical approach which allows for an efficient…

介观与纳米尺度物理 · 物理学 2018-09-13 R. Seoane Souto , R. Avriller , A. Levy Yeyati , A. Martín-Rodero
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