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相关论文: Geometric effects in non-equilibrium electron tran…

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We consider a nonadiabatic quantum pumping phenomena in a ballistic narrow constriction. The pumping is induced by a potential that has both spatial and temporal periodicity characterized by $K$ and $\Omega$. In the zero frequency…

介观与纳米尺度物理 · 物理学 2015-06-25 C. S. Tang , C. S. Chu

The impact of coherence on the nonlinear optical response and stationary transport is studied in quantum cascade laser structures. Nonequilibrium effects such as pump-probe signals, the spatio-temporally resolved electron density evolution,…

介观与纳米尺度物理 · 物理学 2009-05-12 C. Weber , A. Wacker , A. Knorr

The bulk-edge correspondence (BEC) refers to a one-to-one relation between the bulk and edge properties ubiquitous in topologically nontrivial systems. Depending on the setup, BEC manifests in different forms and govern the spectral and…

介观与纳米尺度物理 · 物理学 2018-05-09 Ken-Ichiro Imura , Yukinori Yoshimura , Takahiro Fukui , Yasuhiro Hatsugai

We investigate the structural and thermodynamic properties of high-pressure ice by incorporating quantum anharmonicity at a non-perturbative level. Quantum fluctuations reduce the critical pressure of the phase transition between phase VIII…

其他凝聚态物理 · 物理学 2024-03-15 Marco Cherubini , Lorenzo Monacelli , Bingjia Yang , Roberto Car , Michele Casula , Francesco Mauri

Unitary drivings of quantum systems are ubiquitous in experiments and applications of quantum mechanics and the underlying energetic aspects, particularly relevant in quantum thermodynamics, are receiving growing attention. We investigate…

量子物理 · 物理学 2021-06-28 Camille L Latune

Motivated by the intriguing possibilities of steering ultrafast non-adiabatic processes through the geometric properties of bands in quantum materials by laser pulses, we extend a wave-packet transport theory, previously well-established in…

介观与纳米尺度物理 · 物理学 2024-10-30 Matisse Wei-Yuan Tu , Li-Sheng Lin , Chung-Yu Wang , Jyh-Pin Chou , Sin-Yi Wei , Chien-Ming Tu , Chia-Nung Kuo , Chin-Shan Lue , Chih-Wei Luo

We analyze a quantum-classical hybrid system of steadily precessing slow classical localized magnetic moments, forming a head-to-head domain wall, embedded into an open quantum system of fast nonequilibrium electrons. The electrons reside…

介观与纳米尺度物理 · 物理学 2020-10-29 Utkarsh Bajpai , Branislav K. Nikolic

Dynamical quantum phase transitions (DQPTs) probe the nonequilibrium evolution of quantum systems, unveiling their geometric and topological characteristics. In this study, we introduce the concepts of parallel quench and dynamic…

量子物理 · 物理学 2025-06-06 Jia-Chen Tang , Xu-Yang Hou , Hao Guo

The topology of the non-adiabatic parameter space bundle is discussed for evolution of exact cyclic state vectors in Berry's original example of split angular momentum eigenstates. It turns out that the change in topology occurs at a…

高能物理 - 理论 · 物理学 2009-10-22 Ali Mostafazadeh , Arno Bohm

A variety of phenomena in nuclear and high energy physics seemingly do not satisfy the basic hypothesis for possible stationary states to be of the type covered by Boltzmann-Gibbs (BG) statistical mechanics. More specifically, the system…

统计力学 · 物理学 2017-08-23 C. Tsallis , Ernesto P. Borges

A new methodology of simulating nonadiabatic dynamics using frozen-width Gaussian wavepackets within the moving crude adiabatic representation with the on-the-fly evaluation of electronic structure is presented. The main feature of the new…

化学物理 · 物理学 2018-04-04 Loïc Joubert-Doriol , Artur F. Izmaylov

Bridge-mediated electron transfer (ET) between a donor and an acceptor is prototypical for the description of numerous most important ET scenarios. While multi-step ET and the interplay of sequential and direct superexchange transfer…

化学物理 · 物理学 2021-08-26 Nirmalendu Acharyya , Roman Ovcharenko , Benjamin P. Fingerhut

We have investigated the valence transition in the extended periodic Anderson model (EPAM) within the framework of dynamical mean field theory. Previous theoretical studies have indicated the presence of this transition in parameter ranges…

强关联电子 · 物理学 2021-07-12 Pramod Kumar , N. S. Vidhyadhiraja

In conventional gauge theory, a charged point particle is described by a representation of the gauge group. If we propagate the particle along some path, the parallel transport of the gauge connection acts on this representation. The…

高能物理 - 理论 · 物理学 2008-11-26 Hendryk Pfeiffer

We present a Bayesian method to reconstruct event-by-event multiplicity fluctuations and rapidity correlations in p+Pb collisions at zero impact parameter from minimum-bias data, without assuming any model of the collision dynamics. We test…

核理论 · 物理学 2023-02-07 Mathis Pepin , Peter Christiansen , Stéphane Munier , Jean-Yves Ollitrault

It is shown that quantum effects play determining role in nitrogen adatom diffusion due to several different factors. This could be related to the change of the energy of the quantum states and also due to the redistribution of electrons…

材料科学 · 物理学 2025-02-24 Paweł Strak , Cyprian Sobczak , Stanislaw Krukowski

An external magnetic field, $H$, applied parallel to a quasi two-dimensional system modifies quantitatively and qualitatively the density of states. Using a self-consistent numerical approach, we study how this affects the entropy, $S$, the…

材料科学 · 物理学 2008-12-05 Constantinos Simserides

Geometric phases of scattering states in a ring geometry are studied based on a variant of the adiabatic theorem. Three time scales, i.e., the adiabatic period, the system time and the dwell time, associated with adiabatic scattering in a…

介观与纳米尺度物理 · 物理学 2007-05-23 Huan-Qiang Zhou , Urban Lundin , Sam Young Cho

In striking contrast to equilibrium systems, inertia can profoundly alter the structure of active systems. Here, we demonstrate that driven systems can exhibit effective equilibrium-like states with increasing particle inertia, despite…

软凝聚态物质 · 物理学 2023-02-23 Ahmad K. Omar , Katherine Klymko , Trevor GrandPre , Phillip L. Geissler , John F. Brady

To describe the spatial trajectory of an overdamped Brownian particle, inertial effects can be neglected. Yet, at the energetic level of stochastic thermodynamics, changes in kinetic energy must be considered to accurately predict the heat…

统计力学 · 物理学 2024-08-30 Pedro V. Paraguassú , Rui Aquino , Pablo de Castro
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