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Recently, a novel phenomenon is observed for vacuum decay to proceed via classically allowed dynamical evolution from initial configurations of false vacuum fluctuations. With the help of some occasionally developed large fluctuations in…

广义相对论与量子宇宙学 · 物理学 2020-01-16 Shao-Jiang Wang

Eternal inflation arising from a potential landscape predicts that our universe is one realization of many possible cosmological histories. One way to access different cosmological histories is via the nucleation of bubble universes from a…

宇宙学与河外天体物理 · 物理学 2016-04-13 Matthew C. Johnson , Wei Lin

We review a theoretical perspective of the dynamics of glass forming liquids and the glass transition. It is a perspective we have developed with our collaborators during this decade. It is based upon the structure of trajectory space. This…

软凝聚态物质 · 物理学 2010-04-20 David Chandler , Juan P. Garrahan

We establish a new theoretical framework, based on a time-dependent mean field approach, to address the dynamics of the driven Dicke model. The joint evolution of both mean fields and quantum fluctuations gives rise to a rich and generally…

量子物理 · 物理学 2016-08-18 G. Francica , S. Montangero , M. Paternostro , F. Plastina

We investigate a mean-field approach to a quantum brownian particle interacting with a quantum thermal bath at temperature $T$, and subjected to a non-linear potential. An exact, partially classical description of quantum brownian motion is…

统计力学 · 物理学 2009-11-07 A. E. Allahverdyan , R. Balian , Th. M. Nieuwenhuizen

At very early times, the universe was not in a vacuum state. Under the assumtion that the deviation from equillibrium was large, in particular that it is higher than the scale of inflation, we analyse the conditions for local transitions…

高能物理 - 理论 · 物理学 2014-11-18 John F. Donoghue

We investigate the thermodynamical properties of quantum fields in curved spacetime. Our approach is to consider quantum fields in curved spacetime as a quantum system undergoing an out-of-equilibrium transformation. The non-equilibrium…

量子物理 · 物理学 2016-01-14 Nana Liu , John Goold , Ivette Fuentes , Vlatko Vedral , Kavan Modi , David Edward Bruschi

The flows of phase trajectories of cosmological models based on the vacuum classical Higgs field and their behavior on the Einstein-Higgs surface near singular points of a dynamical system are investigated by numerical simulation. The…

广义相对论与量子宇宙学 · 物理学 2022-03-28 Yu. G. Ignat'ev , A. R. Samigullina

We develop a consistent perturbation theory in quantum fluctuations around the classical evolution of a system of interacting bosons. The zero order approximation gives the classical Gross-Pitaevskii equations. In the next order we recover…

统计力学 · 物理学 2007-05-23 Anatoli Polkovnikov

A fluctuation theorem for the nonequilibrium entropy production in quantum phase space is derived, which enables the consistent thermodynamic description of arbitrary quantum systems, open and closed. The new treatment naturally generalizes…

统计力学 · 物理学 2013-08-13 Sebastian Deffner

Enhancing the efficiency of water electrolysis, which can be severely impacted by the nucleation and growth of bubbles, is key in the energy transition. In this combined experimental and numerical study, in-situ bubble evolution and…

A quantum-kinetic formulation of the dynamical evolution of a high-energy non-equilibrium gluon system at finite density is developed, to study the interplay between quantum fluctuations of high-momentum (hard) gluons and the low-momentum…

高能物理 - 唯象学 · 物理学 2008-11-26 Klaus Geiger

In this paper, we investigate the role of scalar field potentials in the dynamical evolution of the Universe. A gravity theory with a non-minimally coupled scalar field with torsion in the geometrical action simulating effective dark energy…

广义相对论与量子宇宙学 · 物理学 2024-09-05 B. Mishra , S. A. Kadam , S. K. Tripathy

Detailed measurements of the cosmic microwave background indicate the large-scale homogeneity of the universe. On very small scales, we observe however inhomogeneities such as galaxies, stars, planets and ourselves. In the context of hot…

广义相对论与量子宇宙学 · 物理学 2019-07-02 Wouter Ryssens

We study scalar bubble collisions in first-order phase transitions focusing on the relativistic limit. We propose 'trapping equation' which describes the wall behavior after collision, and test it with numerical simulations in several…

高能物理 - 唯象学 · 物理学 2020-09-16 Ryusuke Jinno , Thomas Konstandin , Masahiro Takimoto

In this brief review we introduce the methods of quantum field theory out of equilibrium and study the non-equilibrium aspects of phase transitions. Specifically we critically study the picture of the ``slow-roll'' phase transition in the…

高能物理 - 理论 · 物理学 2009-09-25 D. Boyanovsky , H. J. de Vega , R. Holman

The dynamics of phase transitions plays a crucial r\^ole in the so-called interface between high energy particle physics and cosmology. Many of the interesting results generated during the last fifteen years or so rely on simplified…

高能物理 - 唯象学 · 物理学 2007-05-23 Marcelo Gleiser

This paper aims to use the unified bubble dynamics equation to investigate bubble behavior in complex scenarios involving hybrid free surface/wall boundaries and interactions between multiple bubbles. The effect of singularity movement on…

流体动力学 · 物理学 2023-10-10 Zhang A-Man , Li Shi-Min , Cui Pu , Li Shuai , Liu Yun-Long

We study the dynamics of a two-level quantum system interacting with an external electromagnetic field periodic and quasiperiodic in time. The quantum evolution is described exactly by the classical equations of motion of a gyromagnet in a…

量子物理 · 物理学 2009-11-11 Renato M. Angelo , Walter F. Wreszinski

A thermodynamic approach to rapid phase transformations within a diffuse interface in a binary system is developed. Assuming an extended set of independent thermodynamic variables formed by the union of the classic set of slow variables and…

材料科学 · 物理学 2009-11-10 Peter Galenko , David Jou
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