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We show that the interplay between geometric criticality and dynamical fluctuations leads to a novel universality class of the contact process on a randomly diluted lattice. The nonequilibrium phase transition across the percolation…

统计力学 · 物理学 2007-05-23 Thomas Vojta , Man Young Lee

We obtain explicit expressions for the long range correlations in the ABC model and in diffusive models conditioned to produce an atypical current of particles.In both cases, the two-point correlation functions allow to detect the…

统计力学 · 物理学 2011-11-29 T. Bodineau , B. Derrida , V. Lecomte , F. van Wijland

We perform the first one-point fluctuation analysis of the high-energy neutrino sky. This method reveals itself to be especially suited to contemporary neutrino data, as it allows to study the properties of the astrophysical components of…

高能天体物理现象 · 物理学 2017-04-04 Michael R. Feyereisen , Irene Tamborra , Shin'ichiro Ando

It was recently shown that entanglement in quantum systems being in a non-equilibrium state can appear at much higher temperatures than in an equilibrium state. However, any system is subject to the natural relaxation process establishing…

量子物理 · 物理学 2015-06-15 Gregory B. Furman , Victor M. Meerovich , Vladimir L. Sokolovsky

Long-range thermal fluctuations appear in fluids in nonequilibrium states leading to fluctuation-induced Casimir-like forces. Two distinct mechanisms have been identified for the origin of the long-range nonequilibrium fluctuations in…

统计力学 · 物理学 2016-02-03 T. R. Kirkpatrick , J. M. Ortiz de Zárate , J. V. Sengers

Casimir physics covers a wealth of phenomena where forces between macroscopic objects are induced by long range fluctuations of either classical or quantum origin. Fluctuations of the quantum electrodynamic vacuum epitomize this type of…

介观与纳米尺度物理 · 物理学 2020-04-15 Ariane Soret , Karyn Le Hur , Eric Akkermans

Within the macroscopic Landau-de Gennes approach, we examine the Gaussian normal mode fluctuations of semi-infinite nematic liquid crystals in a regime of critical wetting. It is argued that surface free-energy potentials that strongly…

软凝聚态物质 · 物理学 2009-10-31 N. B. Ivanov

A binary liquid near its consolute point exhibits critical fluctuations of the local composition; the diverging correlation length has always challenged simulations. The method of choice for the calculation of critical points in the phase…

统计力学 · 物理学 2021-04-29 Yogyata Pathania , Dipanjan Chakraborty , Felix Höfling

Phase diagrams of some globular proteins have a fluid-fluid transition as well as a fluid-crystal transition. Homogeneous nucleation of the crystal from the fluid phase near the critical point of the fluid-fluid transition is examined. As…

软凝聚态物质 · 物理学 2009-10-31 Richard P. Sear

We have performed accurate dynamic light-scattering measurements near critical demixing points of solutions of polystyrene in cyclohexane with polymer molecular weight ranging from 200,000 to 11.4 million. Two dynamic modes have been…

软凝聚态物质 · 物理学 2009-11-07 A. F. Kostko , M. A. Anisimov , J. V. Sengers

The study of the peculiarities of the distribution of secondary particles depending on the degree centrality and the degree of asymmetry of the interacting nuclei, is performed. The number of multicharged fragments of the projectile nucleus…

核理论 · 物理学 2014-11-04 A. Sh. Gaitinov , I. A. Lebedev , A. I. Fedosimova

We investigate the effect of stress fluctuations on the stochastic dynamics of an inclusion embedded in a viscous gel. We show that, in non-equilibrium systems, stress fluctuations give rise to an effective attraction towards the boundaries…

The multiplicity fluctuations are sensitive to QCD phase transition and to the presence of critical point in QCD phase diagram. At critical point a system undergoing phase transition is characterized by large fluctuations in the observables…

高能物理 - 唯象学 · 物理学 2022-11-24 Zarina Banoo , Ramni Gupta

We investigate proteins within heterogeneous cell membranes where non-equilibrium phenomena arises from spatial variations in concentration and temperature. We develop simulation methods building on non-equilibrium statistical mechanics to…

软凝聚态物质 · 物理学 2025-08-28 D. Jasuja , P. J. Atzberger

Molecular-dynamics simulations are presented for two correlation functions formed with the partial density fluctuations of binary hard-sphere mixtures in order to explore the effects of mixing on the evolution of glassy dynamics upon…

软凝聚态物质 · 物理学 2007-05-23 G. Foffi , W. Gotze , F. Sciortino , P. Tartaglia , Th. Voigtmann

We develop and apply a minimally invasive approach for characterization of inter-species spin interactions by detecting spin fluctuations alone. We consider a heterogeneous two-component spin ensemble in thermal equilibrium that interacts…

介观与纳米尺度物理 · 物理学 2014-08-25 Dibyendu Roy , Luyi Yang , Scott A. Crooker , Nikolai A. Sinitsyn

In this article we derive the average and the variance of the cross-correlation of a noise wavefield. The noise cross-correlation function (NCF) is widely used to passively estimate the Green's function between two probes and is…

无序系统与神经网络 · 物理学 2015-06-17 Julien de Rosny , Matthieu Davy

We study the stationary state of a one-dimensional kinetic model where a probe particle is driven by an external field E and collides, elastically or inelastically, with a bath of particles at temperature T. We focus on the stationary…

统计力学 · 物理学 2013-05-30 G. Gradenigo , U. Marini Bettolo Marconi , A. Puglisi , A. Sarracino

Membranes containing a wide variety of ternary mixtures of high chain-melting temperature lipids, low chain-melting temperature lipids, and cholesterol undergo lateral phase separartion into coexisting liquid phases at a miscibility…

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