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相关论文: Quantum Charge Transport and Conformational Dynami…

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We present a scattering approach for the study of the transport and thermodynamics of quantum systems strongly coupled to their thermal environment(s). This formalism recovers the standard non-equilibrium Green's function expressions for…

统计力学 · 物理学 2020-07-15 Alexander Semenov , Abraham Nitzan

We develop a classical mapping approach suitable to describe vibrationally coupled charge transport in molecular junctions based on the Cartesian mapping for many-electron systems [J. Chem. Phys. 137, 154107 (2012)]. To properly describe…

强关联电子 · 物理学 2015-06-18 Bin Li , Eli. Y. Wilner , Michael Thoss , Eran Rabani , William H. Miller

In this paper we study transport properties of electrons on the two-dimensional honeycomb lattice. We consider a half-filled system in the vicinity of a symmetry-breaking transition from a semimetallic phase towards an insulating phase with…

强关联电子 · 物理学 2015-05-20 Lars Fritz

We develop a model for charge trapping on conjugated polymer chains using a continuous representation of the polymer. By constraining the motion to along the chain, we find that kinks along the chain serve as points of attraction and can…

软凝聚态物质 · 物理学 2012-06-27 Eric R. Bittner , Adam J. Moulé

Charge transport through molecular junctions is often described either as a purely coherent or a purely classical phenomenon, and described using the Landauer-B\"uttiker formalism or Marcus theory, respectively. Using a generalised quantum…

介观与纳米尺度物理 · 物理学 2018-10-23 Jakub K. Sowa , Jan A. Mol , G. Andrew D. Briggs , Erik M. Gauger

We consider a quantum battery modeled as a set of N independent two-level quantum systems driven by a time dependent classical source. Different figures of merit, such as stored energy, time of charging and energy quantum fluctuations…

介观与纳米尺度物理 · 物理学 2020-07-02 A. Crescente , M. Carrega , M. Sassetti , D. Ferraro

Single-molecule electronics has been envisioned as the ultimate goal in the miniaturisation of electronic circuits. While the aim of incorporating single-molecule junctions into modern technology still proves elusive, recent developments in…

介观与纳米尺度物理 · 物理学 2017-11-22 Jakub K. Sowa , Jan A. Mol , G. Andrew D. Briggs , Erik M. Gauger

Here we study the polaronic transport through molecules weakly connected to metallic electrodes in the nonlinear response regime. Molecule itself is treated as a quantum dot with discrete energy levels, its connection to the electrodes is…

介观与纳米尺度物理 · 物理学 2007-07-22 Kamil Walczak

Spin and charge transport through a quantum dot coupled to external nonmagnetic leads is analyzed theoretically in terms of the non-equilibrium Green function formalism based on the equation of motion method. The dot is assumed to be…

介观与纳米尺度物理 · 物理学 2015-05-13 R. Swirkowicz , J. Barnas , M. Wilczynski

Quantum percolation describes the problem of a quantum particle moving through a disordered system. While certain similarities to classical percolation exist, the quantum case has additional complexity due to the possibility of Anderson…

量子物理 · 物理学 2014-10-03 C. M. Chandrashekar , Th. Busch

We define a quantum charger as an interacting quantum system that transfers energy between two drives. The key figure of merit characterizing a charger is its charging power. Remarkably, the presence of long-range interactions within the…

统计力学 · 物理学 2026-01-07 Harald Schmid , Felix von Oppen , Gil Refael , Yang Peng

We developed a general theoretical approach and a user-ready computer code that permit to study the dynamics of collisional energy transfer and ro-vibrational energy exchange in complex molecule-molecule collisions. The method is a mixture…

化学物理 · 物理学 2024-02-06 Carolin Joy , Bikramaditya Mandal , Dulat Bostan , Marie-Lise Dubernet , Dmitri Babikov

Quantum dots are versatile systems for exploring quantum transport, electron correlations, and many-body phenomena such as the Kondo effect. While equilibrium properties are well understood through methods like the numerical renormalization…

强关联电子 · 物理学 2026-01-06 Gustavo Diniz , Silvio Quintino , Vivian V. França

In the field of molecular electronics, particularly in quantum transport studies, the orientation of molecules plays a crucial role. This orientation, with respect to the electrodes, can be defined through the cavity of ring-shaped…

材料科学 · 物理学 2023-02-17 A. Martinez-Garcia , T. de Ara , L. Pastor-Amat , C. Untiedt , E. B. Lombardi , W. Dednam , C. Sabater

We study a quantum system that consists of two fermionic chains coupled by a driven quantum point contact (QPC). The QPC contains a bond with a periodically varying tunneling amplitude. Initially the left chain is packed with fermions while…

强关联电子 · 物理学 2025-11-14 Ivan V. Dudinets , Oleg Lychkovskiy

A transport methodology to study the electron transport between quantum dots arrays based in Transfer Hamiltonian approach is presented. The interactions between the quantum dots and between the quantum dots and the electrodes are…

介观与纳米尺度物理 · 物理学 2012-05-10 S. Illera , N. Garcia-Castello , J. D. Prades , A. Cirera

Although Marcus theory is widely used to describe charge transfer in molecular systems, in its usual form it is restricted to transfer from one molecule to another. If a charge is delocalised across multiple donor molecules, this approach…

化学物理 · 物理学 2019-11-28 Natasha B. Taylor , Ivan Kassal

We have made a variational analysis on an evolution of superconductivity from weak to strong coupling regime. In contrast to a crossover without thermodynamic anomaly found in a dilute system, we show the existence of a quantum phase…

超导电性 · 物理学 2007-05-23 S. Saito , H. Yoshimoto , Y. Y. Suzuki , S. Kurihara

We investigate bias-driven non-equilibrium quantum phase transitions in a paradigmatic quantum-transport setup: an interacting quantum dot coupled to non-interacting metallic leads. Using the Random Phase Approximation, which is exact in…

强关联电子 · 物理学 2026-01-29 José F. B. Afonso , Stefan Kirchner , Pedro Ribeiro

We explore the prospects to control by use of time-dependent fields quantum transport phenomena in nanoscale systems. In particular, we study for driven conductors the electron current and its noise properties. We review recent…

介观与纳米尺度物理 · 物理学 2007-05-23 Sigmund Kohler , Jörg Lehmann , Peter Hänggi