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We present exact solutions for the non-equilibrium steady states of a class of dissipative spinless fermionic systems with arbitrary Hamiltonian pairing terms, global charging energy interactions, and uniform single particle loss on every…

量子物理 · 物理学 2026-05-12 Andrew Lingenfelter , Aashish A. Clerk

As a generic model for transport of interacting fermions through a barrier or interstitials in a lattice, quantum Brownian motion in a periodic potential is studied. There is a duality transformation between the continuous coordinate or…

凝聚态物理 · 物理学 2007-05-23 M. Sassetti , H. Schomerus , U. Weiss

We present a strategy for mapping the dynamics of a fermionic quantum system to a set of classical dynamical variables. The approach is based on imposing the correspondence relation between the commutator and the Poisson bracket, preserving…

量子物理 · 物理学 2020-09-29 Amikam Levy , Wenjie Dou , Eran Rabani , David T. Limmer

A recently proposed analytical solution for the equations of motion of the one-body Green function of the double quantum dot is extended to the out-of-equilibrium situation. By solving a linear system for the density correlators, not only…

介观与纳米尺度物理 · 物理学 2025-01-30 Nahual Sobrino , David Jacob , Stefan Kurth

This paper is concerned with the well-posedness analysis of the Hartree-Fock system modeling the time evolution of a quantum system comprised of fermions. We consider quantum states with finite mass and finite kinetic energy, and the…

数学物理 · 物理学 2007-05-23 A. Arnold , R. Bosi , S. Jeschke , E. Zorn

Evaluating the time-dependent dynamics of driven open quantum systems is relevant for a theoretical description of many systems, including molecular junctions, quantum dots, cavity-QED experiments, cold atoms experiments and more. Here, we…

介观与纳米尺度物理 · 物理学 2017-08-23 Archak Purkayastha , Yonatan Dubi

Within the quantum field-theoretical approach describing the evolution of a quadratic Liouvillian in the basis of Keldysh contour coherent states, we investigate the spectral and transport properties of a dissipative superconducting system…

介观与纳米尺度物理 · 物理学 2026-02-17 S. V. Aksenov , M. S. Shustin , I. S. Burmistrov

We consider the time-dependent electron transport through a quantum dot connected to multiple leads in the presence of the additional over-dot (bridge) tunnelling channels by using the evolution operator technique. Each terminal and quantum…

介观与纳米尺度物理 · 物理学 2007-06-13 R. Taranko , T. Kwapinski , E. Taranko

Fermionic superfluid junctions typically exhibit suppressed thermal and spin transport due to the presence of a pairing gap but allow coherent particle transport. While dissipation generally weakens coherent transport, it can also induce…

We provide a Hilbert space approach to quantum mechanics where space and time are treated on an equal footing. Our approach replaces the standard dependence on an external classical time parameter with a spacetime-symmetric algebraic…

量子物理 · 物理学 2026-02-10 N. L. Diaz , R. Rossignoli

Electrons in tight-binding lattice driven by DC electric field dissipate their energy through on-site fermionic thermostats. Due to the translational invariance in the transport direction, the problem can be block-diagonalized. We solve…

强关联电子 · 物理学 2013-03-28 Jong E. Han

We analyze the heat current traversing a quantum dot sandwiched between a ferromagnetic and a superconducting electrode. The heat flow generated in response to a voltage bias presents rectification as a function of the gate potential…

介观与纳米尺度物理 · 物理学 2018-04-24 Sun-Yong Hwang , David Sanchez

Transport equations for autonomous driven Fermionic quantum systems are derived with the help of statistical assumptions and of the Markov approximation. The statistical assumptions hold if the system consists of subsystems within which…

核理论 · 物理学 2022-04-20 Hans A. Weidenmüller

Persistent currents circulate continuously without requiring external power sources. Here, we extend their theory to include dissipation within the framework of non-Hermitian quantum Hamiltonians. Using Green's function formalism, we…

量子物理 · 物理学 2024-08-27 Pei-Xin Shen , Zhide Lu , Jose L. Lado , Mircea Trif

We consider a fermionic quantum system exchanging particles with an environment at a fixed temperature and study its reduced evolution by means of a Redfield-I equation with time-dependent (non-Markovian) coefficients. We find that the…

介观与纳米尺度物理 · 物理学 2025-02-04 Lukas Litzba , Eric Kleinherbers , Jürgen König , Ralf Schützhold , Nikodem Szpak

In quasiballistic semiconductor nanostructures, carrier exchange between the active region and dissipative contacts is the mechanism that governs relaxation. In this paper, we present a theoretical treatment of transient quantum transport…

介观与纳米尺度物理 · 物理学 2014-05-21 B. Novakovic , I. Knezevic

This is the second part of a work in which we show how to solve a large class of Lindblad master equations for non-interacting particles on $L$ sites. Here we concentrate on fermionic particles. In parallel to part I for bosons, but with…

量子物理 · 物理学 2017-05-15 Chu Guo , Dario Poletti

We present a time-dependent study of electron transport through a strongly correlated quantum dot. The time-dependent current is obtained with the multiple-probe battery method, while adiabatic lattice density functional theory in the Bethe…

介观与纳米尺度物理 · 物理学 2013-02-06 A. Pertsova , M. Stamenova , S. Sanvito

Based on an exact formulation, we present a master equation approach to transport through Majorana zero modes (MZMs). Within the master equation treatment, the occupation dynamics of the regular fermion associated with the MZMs holds a…

介观与纳米尺度物理 · 物理学 2022-09-28 Jinshuang Jin , Xin-Qi Li

The authors apply the generalized master equation to analyze time-dependent transport through a finite quantum wire with an embedded subsystem. The parabolic quantum wire and the leads with several subbands are described by a continuous…

介观与纳米尺度物理 · 物理学 2015-05-13 Vidar Gudmundsson , Cosmin Gainar , Chi-Shung Tang , Valeriu Moldoveanu , Andrei Manolescu