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相关论文: Nonequilibrium Noise in Metals at Mesoscopic Scale…

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Light scattering from resonantly or nearly resonantly excited systems, known as resonance fluorescence, has been gaining importance as a versatile tool for investigating quantum states of matter and readout of quantum information, recently…

量子物理 · 物理学 2023-10-02 Rafał A. Bogaczewicz , Paweł Machnikowski

We study the role of charge density-wave fluctuations on the temperature dependence of Seebeck coefficient in quasi-one dimensional conductors with a Peierls instability. The description of low-dimensional incommensurate charge density-wave…

强关联电子 · 物理学 2020-03-25 M. Mbodji , C. Bourbonnais

The methods of non-equilibrium thermodynamics of systems with an interface have been applied to the study of transport processes in semiconductor junctions. A complete phenomenological model for drift-diffusion processes in a junction has…

凝聚态物理 · 物理学 2015-06-25 Gabriel Gomila , Miguel Rubi

Electron transport through amorphous monatomic metallic structures generated earlier by molecular dynamics simulations is studied numerically. The interference of electronic trajectories backscattered by the structural disorder probes the…

无序系统与神经网络 · 物理学 2009-10-31 V. I. Kozub , C. Oligschleger

Models of nonequilibrium quantum transport underpin all modern electronic devices, from the largest scales to the smallest. Past simplifications such as coarse graining and bulk self-averaging served well to understand electronic materials.…

介观与纳米尺度物理 · 物理学 2012-04-24 Mukunda P. Das , Frederick Green

We study the effect of intrinsic noise on the thermodynamic balance of complex chemical networks subtending cellular metabolism and gene regulation. A topological network property called deficiency, known to determine the possibility of…

分子网络 · 定量生物学 2015-11-12 Matteo Polettini , Artur Wachtel , Massimiliano Esposito

The study of thermodynamic properties of microscopic systems, such as a colloid in a fluid, has been of great interest to researchers since the discovery of the fluctuation theorem and associated laws of stochastic thermodynamics. However,…

软凝聚态物质 · 物理学 2023-11-28 Debasish Saha , Rati Sharma

As CMOS technology scales down, thermal fluctuations increasingly impact circuit behavior, posing challenges to conventional circuit design. However, the inherent stochasticity introduced by thermal noise is now being explored as a…

We demonstrate that the fluctuation theorem of Gallavotti and Cohen can be used to characterize the class of dynamics that arises in nonthermal systems of collectively interacting particles driven over random quenched disorder. By observing…

统计力学 · 物理学 2013-12-05 J. A. Drocco , C. J. Olson Reichhardt , C. Reichhardt

Phonon heat transport in mesoscopic systems is investigated using methods analogous to the Landauer description of electrical conductance. A "universal heat conductance" expression that depends on the properties of the conducting pathway…

介观与纳米尺度物理 · 物理学 2009-10-31 D. E. Angelescu , M. C. Cross , M. L. Roukes

The low-field electron diffusion, noise, and the conduction in amorphous chalcogenides are investigated by means of a Monte Carlo implementation of a full three- dimensional variable-range hopping transport model between localized states.…

材料科学 · 物理学 2012-03-05 Fabrizio Buscemi , Enrico Piccinini , Rossella Brunetti , Massimo Rudan , Carlo Jacoboni

Fluctuations and noise may alter the behavior of dynamical systems considerably. For example, oscillations may be sustained by demographic fluctuations in biological systems where a stable fixed point is found in the absence of noise. We…

适应与自组织系统 · 物理学 2009-11-13 Richard P. Boland , Tobias Galla , Alan J. McKane

We discuss fluctuations in the measurement process and how these fluctuations are related to the dissipational parameter characterising quantum damping or decoherence. On the example of the measuring current of the variable-barrier or QPC…

量子物理 · 物理学 2008-11-26 L. Stodolsky

Shot noise affects differently the nonlinear electron transport in semiconductor superlattices depending on the strength of the coupling among the superlattice quantum wells. Strongly coupled superlattices can be described by a miniband…

介观与纳米尺度物理 · 物理学 2007-05-23 L. L. Bonilla

We calculate magnetic field fluctuations above a conductor with a nonlocal response (spatial dispersion) and consider a large range of distances. The cross-over from ballistic to diffusive charge transport leads to reduced noise spectrum at…

介观与纳米尺度物理 · 物理学 2012-02-09 Harald R. Haakh , Carsten Henkel

We study shot noise in mesoscopic diffusive wires between a normal and a superconducting terminal. We particularly focus on the regime, in which the proximity-induced reentrance effect is important. We will examine the difference between a…

介观与纳米尺度物理 · 物理学 2007-05-23 Wolfgang Belzig

This paper presents a detailed noise analysis and a noise-based optimization procedure for resonant MEMS structures. A design for high sensitivity of MEMS structures needs to take into account the noise shaping induced by damping phenomena…

其他计算机科学 · 计算机科学 2008-12-18 Mrigank Sharma , Akila Kannan , Edmond Cretu

It is shown that the characteristics of the mesoscopic fluctuations in the conventional quantum-diffusion model and the model of the non-coherent (`classical') diffusion in media with long-range correlated disorder are quite similar in the…

凝聚态物理 · 物理学 2007-05-23 Igor V. Lerner

We review our recent contributions to two topics that have become of interest in the field of open, dissipative quantum systems: non-Gaussian noise and decoherence in fermionic systems. Decoherence by non-Gaussian noise, i.e. by an…

介观与纳米尺度物理 · 物理学 2015-05-13 Clemens Neuenhahn , B. Kubala , B. Abel , Florian Marquardt

The charge fluctuations of two nearby mesoscopic conductors coupled only via the long range Coulomb force are discussed and used to find the dephasing rate which one conductor exerts on the other. The discussion is based on a formulation of…

介观与纳米尺度物理 · 物理学 2007-05-23 Markus Buttiker