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We study the dynamics of a charge qubit, consisting of a single electron in a double well potential, coupled to a point-contact (PC) electrometer using the quantum trajectories formalism. In contrast with previous work, our analysis is…

介观与纳米尺度物理 · 物理学 2007-05-23 T. M. Stace , S. D. Barrett

In this article we review the thermoelectric properties of three terminal devices with Coulomb coupled quantum dots (QDs) as observed in recent experiments [1,2]. The system we consider consists of two Coulomb-blockade QDs one of which can…

介观与纳米尺度物理 · 物理学 2016-11-17 Holger Thierschmann , Rafael Sánchez , Björn Sothmann , Hartmut Buhmann , Laurens W. Molenkamp

We report on magnetoconductance measurements through a weakly coupled quantum dot, containing roughly 900 electrons, in a wide magnetic field range from 0 T to 12 T. We find modulations of the conductance resonances in the quantum Hall…

In realistic open-system environments, decoherence and dissipation naturally drive quantum batteries toward passive states, thereby limiting their maximum extractable work (ergotropy). While quantum catalysis has been proposed to mitigate…

量子物理 · 物理学 2026-04-29 Shun-Cai Zhao

We consider tunneling of spinless electrons from a single-channel emitter into an empty collector through an interacting resonant level of the quantum dot. When all Coulomb screening of sudden charge variations of the dot during the…

强关联电子 · 物理学 2017-04-06 V. V. Ponomarenko , I. A. Larkin

Energy dissipation, typically considered an undesirable process, has recently been shown to be harnessed as a resource to optimize the performance of a quantum battery. Following this perspective, we introduce a novel technique of charging…

量子物理 · 物理学 2025-03-17 Borhan Ahmadi , Paweł Mazurek , Shabir Barzanjeh , Paweł Horodecki

We study the timely issue of charge order checkerboard patterns observed in a variety of cuprate superconductors. We suggest a minimal model in which strong quantum fluctuations in the vicinity of a single antiferromagnetic quantum critical…

强关联电子 · 物理学 2014-06-19 H. Meier , C. Pépin , M. Einenkel , K. B. Efetov

The thermoelectric properties of a semiconduct quantum dot chain (SQDC) connected to metallic electrodes are theoretically investigated in the Coulomb blockade regime. An extended Hubbard model is employed to simulate the SQDC system…

介观与纳米尺度物理 · 物理学 2013-01-11 David M. -T. Kuo , Yia-Chung Chang

Nowadays, quantum batteries (QBs) have been designed to outperform their classical counterparts by leveraging quantum advantages. For instance, the charging power greatly benefits from the entanglement generation of a collective charging…

量子物理 · 物理学 2026-04-01 Guohui Dong , Mengqi Yu , Yao Yao

As a quantum thermodynamic device that utilizes quantum systems for energy storage and delivery, the quantum battery (QB) is expected to offer revolutionary advantages in terms of increasing the charging power and the extractable work by…

量子物理 · 物理学 2025-07-10 Wan-Lu Song , Ji-Ling Wang , Bin Zhou , Wan-Li Yang , Jun-Hong An

A simplified analytical model of single-level quantum dot (QD) refrigerator was studied without considering the electron spin and Coulomb interaction. Based on the ballistic transport of electrons between two reservoirs across the QD, the…

介观与纳米尺度物理 · 物理学 2021-10-18 Xiaolong Liu , Xiaoguang Luo , Chengyun Hong , Zhen Bao , Yong Ding , Jianxi Yao , Songyuan Dai

Using high temperature expansions for the equal time correlator $S(q)$ and static susceptibility $\chi(q)$ for the t-J model, we present evidence for quantum critical (QC), $z\!=\!1$, behavior at intermediate temperatures in a broad range…

凝聚态物理 · 物理学 2009-10-22 Alexander Sokol , Rodney L. Glenister , Rajiv R. P. Singh

We present a microscopic theory of the effect of a microwave field on the supercurrent through a quantum point contact of arbitrary transmission. Our theory predicts that: (i) for low temperatures and weak fields, the supercurrent is…

超导电性 · 物理学 2010-09-15 F. S. Bergeret , P. Virtanen , T. T. Heikkilä , J. C. Cuevas

We study theoretically dynamics of a driven-dissipative qubit-resonator system. Specifically, a transmon qubit is coupled to a transmission-line resonator; this system is considered to be probed via a resonator, by means of either…

介观与纳米尺度物理 · 物理学 2018-07-25 S. N. Shevchenko , D. S. Karpov

The response of electromagnetic (EM) fields that are produced in non-central heavy-ion collisions to electromagnetically charged quark gluon plasma can be understood in terms of charge transport and charge diffusion in the hot QCD medium.…

核理论 · 物理学 2016-08-16 Sukanya Mitra , Vinod Chandra

Interactions in one-dimensional (1D) electron systems are expected to cause a dynamical separation of electronic spin and charge degrees of freedom. A promising system for experimental observation of this non-Fermi-liquid effect consists of…

介观与纳米尺度物理 · 物理学 2009-11-07 U. Zuelicke , M. Governale

In dynamic quantum circuits, classical information from mid-circuit measurements is fed forward during circuit execution. This emerging capability of quantum computers confers numerous advantages that can enable more efficient and powerful…

量子物理 · 物理学 2024-03-28 Elisa Bäumer , Vinay Tripathi , Alireza Seif , Daniel Lidar , Derek S. Wang

We investigate the charging process of quantum battery (QB) systems in an extended Dicke model with both atomic interactions and an external driving field. We focus on the effects of the atomic interaction and the external driving field on…

量子物理 · 物理学 2022-06-22 Fu-Quan Dou , You-Qi Lu , Yuan-Jin Wang , Jian-An Sun

Charge density waves are a common occurrence in all families of high critical temperature superconducting cuprates. Although consistently observed in the underdoped region of the phase diagram and at relatively low temperatures, it is still…

We present an analysis of the availability and maximum extractable work of quantum batteries in the presence of charge and/or heat steady-state currents. Quantum batteries are modelled as non-interacting open quantum systems (mesoscopic…

量子物理 · 物理学 2024-10-31 F. H. Kamin , Z. Abuali , H. Ness , S. Salimi