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Living cells exhibit an important out-of-equilibrium mechanical activity, mainly due to the forces generated by molecular motors. These motor proteins, acting individually or collectively on the cytoskeleton, contribute to the violation of…

生物物理 · 物理学 2009-01-21 Francois Gallet , Delphine Arcizet , Pierre Bohec , Alain Richert

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 investigate the fluctuations around the average density profile in the weakly asymmetric exclusion process with open boundaries in the steady state. We show that these fluctuations are given, in the macroscopic limit, by a centered…

其他凝聚态物理 · 物理学 2009-11-11 B. Derrida , C. Enaud , C. Landim , S. Olla

Cross-Phase Modulation (XPM) constitutes a critical nonlinear impairment in high-capacity Wavelength Division Multiplexing (WDM) systems, significantly driven by intensity fluctuations (IFs) that evolve due to chromatic dispersion. This…

信号处理 · 电气工程与系统科学 2026-01-08 Ravneel Prasad , Emanuele Viterbo

Many active materials and biological systems are driven far from equilibrium by embedded agents that spontaneously generate forces and distort the surrounding material. Probing and characterizing these athermal fluctuations is essential for…

材料科学 · 物理学 2015-05-18 D. A. Head , D. Mizuno

One of the most important unresolved issues in gamma-ray burst physics is the origin of the prompt gamma-ray spectrum. Its general non-thermal character and the softness in the X-ray band remain unexplained. We tackle these issues by…

高能天体物理现象 · 物理学 2015-06-23 Atul Chhotray , Davide Lazzati

Taking into account both the scattering and the velocity saturation of carriers, we examine the "shallow-water" instability of the two-dimensional electron gas in a field effect transistor. It is shown that both the scattering (which is…

介观与纳米尺度物理 · 物理学 2015-06-25 M. V. Cheremisin , G. G. Samsonidze

We study the consequences of negative differential electron mobility in insulated gate field effect transistors (FETS) using the field model. We show that, in contrast to the case of the monotonic velocity saturation model, the field…

强关联电子 · 物理学 2023-11-21 A. S. Furman

The dephasing effect of metallic gates on electrons moving in one quasi--one--dimensional diffusive wires is analyzed. The incomplete screening in this geometry implies that the effect of the gate can be described, at high energies or…

介观与纳米尺度物理 · 物理学 2009-11-10 F. Guinea

We study experimentally the thermal fluctuations of energy input and dissipation in a harmonic oscillator driven out of equilibrium, and search for Fluctuation Relations. We study transient evolution from the equilibrium state, together…

统计力学 · 物理学 2007-11-28 Sylvain Joubaud , Nicolas Garnier , Sergio Ciliberto

We present a theory that accurately describes the counting of excited states of a noninteracting fermionic gas. At high excitation energies the results reproduce Bethe's theory. At low energies oscillatory corrections to the many--body…

核理论 · 物理学 2009-11-10 P. Leboeuf , A. G. Monastra , A. Relano

This report is aimed at reviving the explanation of flicker-noise observations as the result of spectral measurement of very low-frequency but stationary narrow-band fluctuations named as infralow-frequency noise (ILF noise) [A. Ya.…

统计力学 · 物理学 2009-11-11 A. Ya. Shul'man

Fast magnetic fluctuations due to thermal torques have useful technological functionality ranging from cryptography to probabilistic computing. The characteristic time of fluctuations in typical uniaxial anisotropy magnets studied so far is…

介观与纳米尺度物理 · 物理学 2019-12-04 Jan Kaiser , Avinash Rustagi , Kerem Y. Camsari , Jonathan Z. Sun , Supriyo Datta , Pramey Upadhyaya

Single-point measurements of fluctuations in the scrape-off layer of magnetized plasmas are generally found to be dominated by large-amplitude bursts which are associated with radial motion of blob-like structures. A stochastic model for…

等离子体物理 · 物理学 2013-05-30 O. E. Garcia

The Alcator C-Mod mirror Langmuir probe system has been used to sample data time series of fluctuating plasma parameters in the outboard mid-plane far scrape-off layer. We present a statistical analysis of one second long time series of…

We analyze the interaction of a cold fast electron beam with a thermalized plasma, in the presence of many Langmuir modes. The work aims at characterizing the deviation of the system behavior from the single mode approximation, both with…

等离子体物理 · 物理学 2016-10-12 Nakia Carlevaro , Giovanni Montani , Davide Terzani

In this paper we study the effects of the strong coupling superconductivity on the normal state electronic structure. We point out that the pseudogap phenomena in High-T_c cuprates are naturally explained as a precursor of the strong…

超导电性 · 物理学 2009-10-31 Youichi Yanase , Kosaku Yamada

We develop a consistent formalism in order to explore the effects of density and spin fluctuations on the quasi-particle properties and on the pairing critical temperature of a trapped Fermi gas on the attractive side of a Feshbach…

Inverter-based resources (IBR) have been widely studied for their advantages on the current power systems. This increase in the penetration of renewable energy has raised some concerns about the stability of the existing grid. Historically,…

系统与控制 · 电气工程与系统科学 2023-01-11 Mohammed F. Allehyani , Mohamed Abuagreb , Brian K. Johnson

Understanding the physics of non-equilibrium systems remains as one of the major open questions in statistical physics. This problem can be partially handled by investigating macroscopic fluctuations of key magnitudes that characterise the…

软凝聚态物质 · 物理学 2016-11-17 A. Lasanta , Pablo I. Hurtado , A. Prados