中文
相关论文

相关论文: Environment-assisted quantum transport and mobilit…

200 篇论文

Steady-state thermoelectric machines convert heat into work by driving a thermally-generated charge current against a voltage gradient. In this work, we propose a new class of steady-state heat engines operating in the quantum regime, where…

无序系统与神经网络 · 物理学 2020-02-05 Cecilia Chiaracane , Mark T. Mitchison , Archak Purkayastha , Géraldine Haack , John Goold

The inevitable dissipative interaction of an entangled quantum system with its environment causes degradation in quantum correlations present in the system. This can lead to a finite-time disappearance of entanglement, which is known as…

量子物理 · 物理学 2022-07-22 Ashutosh Singh , Urbasi Sinha

The fractional quantum Hall (FQH) effect gives rise to abundant topological phases, presenting an ultimate platform for studying the transport of edge states. Generic FQH edge contains multiple edge modes, commonly including the…

介观与纳米尺度物理 · 物理学 2024-07-03 Misha Yutushui , Jinhong Park , Alexander D. Mirlin

By employing a nonlinear quantum kicked rotor model, we investigate the transport of energy in multidimensional quantum chaos. Parallel numerical simulations and analytic theory demonstrate that the interplay between nonlinearity and…

无序系统与神经网络 · 物理学 2013-01-23 D. S. Brambila , A. Fratalocchi

We study decoherence of a field-driven qubit in the presence of environmental noises. For a general qubit, we find that driving, whether on-resonance or off-resonance, alters the qubit decoherence rates (including dissipation and pure…

量子物理 · 物理学 2014-09-19 Jun Jing , Peihao Huang , Xuedong Hu

We numerically study excitation transfer in an artificial LH1-RC complex -- an $N$-site donor ring coupled to a central acceptor -- driven by a narrowband optical mode and evolved under a Lindblad master equation with loss and dephasing. In…

光学 · 物理学 2025-09-27 Stephon Alexander , Roger Andrews , Oliver Fox , Sarben Sarkar

We address the dynamics of entanglement and quantum discord for two non interacting qubits initially prepared in a maximally entangled state and then subjected to a classical colored noise, i.e. coupled with an external environment…

量子物理 · 物理学 2013-06-06 C. Benedetti , F. Buscemi , P. Bordone , M. G. A. Paris

Recently, several works have analysed the efficiency of photosynthetic complexes in a transient scenario and how that efficiency is affected by environmental noise. Here, following a quantum master equation approach, we study the energy and…

生物大分子 · 定量生物学 2013-02-28 Daniel Manzano

Selective energy transport throughout a quantum network connected to more than one reaction center can play an important role in many natural and technological considerations in photo-systems. In this work, we propose a method in which an…

量子物理 · 物理学 2015-10-28 Naghi Behzadi , Bahram Ahansaz , Hadi Kasani

In this paper, we investigate the quantum transport of a double quantum dot coupled with a nanomechanical resonator at arbitrary strong electron-phonon coupling regimes. We employ the generalized quantum master equation to study full…

介观与纳米尺度物理 · 物理学 2012-04-22 Chen Wang , Jie Ren , Baowen Li , Qing-Hu Chen

Quantum annealing is a powerful alternative model for quantum computing, which can succeed in the presence of environmental noise even without error correction. However, despite great effort, no conclusive proof of a quantum speedup…

量子物理 · 物理学 2023-04-03 Eliot Kapit , Vadim Oganesyan

The robustness of quantum transport under various perturbations is analyzed in disordered interacting many-body systems, which are constructed from the embedded Gaussian random matrix ensembles (EGEs). The transport efficiency can be…

量子物理 · 物理学 2018-08-14 Adrian Ortega , Thomas Stegmann , Luis Benet

We investigate the dynamics of entanglement in the excitation transfer through a chain of interacting molecules. In the case of two-molecule coupled to noisy environments we show that entanglement can be further enhanced if the distance…

量子物理 · 物理学 2015-08-18 Wei Song , Yi-Sheng Huang , Ming Yang , Zhuo-Liang Cao

We investigate quantum transport in binary tree structures and in hypercubes for the disordered Frenkel-exciton Hamiltonian under pure dephasing noise. We compute the energy transport efficiency as a function of disorder and dephasing…

量子物理 · 物理学 2016-01-05 Leonardo Novo , Masoud Mohseni , Yasser Omar

We systematically investigate the interplay of disorder and time-homogeneous collisional noise in shaping the transport dynamics of an anisotropic XXZ spin chain. Using stochastic collision models to simulate interaction with the…

量子物理 · 物理学 2025-12-30 Vittoria Stanzione , Alessandro Civolani , Jorge Yago Malo , Maria Luisa Chiofalo

We propose a general mechanism for renormalization of the tunneling exponents in edge states of the fractional quantum Hall effect. Mutual effects of the coupling with out-of-equilibrium 1/f noise and dissipation are considered both for the…

强关联电子 · 物理学 2012-09-19 A. Braggio , D. Ferraro , M. Carrega , N. Magnoli , M. Sassetti

We study dephasing-enhanced transport in boundary-driven quasi-periodic systems. Specifically we consider dephasing modelled by current preserving Lindblad dissipators acting on the non-interacting Aubry-Andr\'e-Harper (AAH) and Fibonacci…

量子物理 · 物理学 2021-11-10 Artur M. Lacerda , John Goold , Gabriel T. Landi

We show that an array of ultracold Rydberg atoms embedded in a laser driven background gas can serve as an aggregate for simulating exciton dynamics and energy transport with a controlled environment. Spatial disorder and decoherence…

原子物理 · 物理学 2015-04-09 D. W. Schönleber , A. Eisfeld , M. Genkin , S. Whitlock , S. Wüster

Quantum energy teleportation (QET), implemented via local operations and classical communication, enables carrier-free energy transfer by exploiting quantum resources. While QET has been extensively studied theoretically and validated…

量子物理 · 物理学 2026-01-23 Xiaokun Yan , Kun Zhang , Jin Wang

It is shown that energy transfer in a homogeneous fully connected quantum network is assisted by a decohering interaction with environmental spins. Analytic expressions for the transfer probabilities are obtained for the zero temperature…

量子物理 · 物理学 2014-01-28 A. Marais , I. Sinayskiy , A. Kay , F. Petruccione , A. Ekert