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We study the effect of thermal fluctuations on homogeneous infinite Bose-Einstein condensate with spin F=2 in the cyclic state, when atoms occupy three hyperfine states with $m_{F}=0, \pm 2$. We use both the approach of small-amplitude…

统计力学 · 物理学 2009-11-11 W. V. Pogosov , K. Machida

We discuss the role of the U(1) axial symmetry for the phase structure of QCD at finite temperature. In particular, supported by recent lattice results, we analyse a scenario in which a U(1)-breaking condensate survives across the chiral…

高能物理 - 唯象学 · 物理学 2009-11-10 Enrico Meggiolaro

The evolution of gauge invariant second-order scalar perturbations in a general single field inflationary scenario are presented. Different second order gauge invariant expressions for the curvature are considered. We evaluate…

广义相对论与量子宇宙学 · 物理学 2008-11-26 F. Finelli , G. Marozzi , G. P. Vacca , G. Venturi

We examine Dashen's phenomenon in the Leutwyler--Smilga regime of QCD with any number of colors and quarks in either the fundamental or adjoint representations of the gauge group. In this limit, the theories only depend on simple…

高能物理 - 理论 · 物理学 2009-11-07 G. Akemann , J. T. Lenaghan , K. Splittorff

An initially homogeneous freely evolving fluid of inelastic hard spheres develops inhomogeneities in the flow field (vortices) and in the density field (clusters), driven by unstable fluctuations. Their spatial correlations, as measured in…

统计力学 · 物理学 2009-10-30 J. A. G. Orza , R. Brito , T. P. C. Van Noije , M. H. Ernst

We elucidate the effects of chiral quenched disorder on the scaling properties of pure systems by considering a reduced model that is a variant of the quenched disordered cubic anisotropic O(N) model near its second order phase transition.…

统计力学 · 物理学 2015-06-15 Niladri Sarkar , Abhik Basu

In this paper, we elaborate and extend our proposal arXiv:2307.16098 of the cosmological bouncing model in which a chiral condensate violates the null energy condition and induces a bounce. The condensate formation is caused by the…

广义相对论与量子宇宙学 · 物理学 2024-03-05 Giorgi Tukhashvili

We argue that there should exist the large combined fluctuations of chiral and diquark condensates along the phase boundary of QCD at moderately high density and relatively low temperature. Such fluctuations might lead to anomalous…

高能物理 - 唯象学 · 物理学 2016-09-21 Zhao Zhang , Teiji Kunihiro

We consider turbulence in the Gross-Pitaevsky model and study the creation of a coherent condensate via an inverse cascade originated at small scales. The growth of the condensate leads to a spontaneous breakdown of symmetries of…

混沌动力学 · 物理学 2012-01-06 Natalia Vladimirova , Stanislav Derevyanko , Gregory Falkovich

We review a burgeoning field of "fractons" -- a class of models where quasi-particles are strictly immobile or display restricted mobility that can be understood through generalized multipolar symmetries and associated conservation laws.…

强关联电子 · 物理学 2024-01-08 Andrey Gromov , Leo Radzihovsky

We address the question of whether thermal QCD at high temperature is chaotic from the ${\cal M}$ theory dual of QCD-like theories at intermediate coupling as constructed in arXiv: 2004.07259. The equations of motion of the gauge-invariant…

高能物理 - 理论 · 物理学 2024-04-10 Gopal Yadav , Shivam Singh Kushwah , Aalok Misra

The collective modes of stripes in double layer quantum Hall systems are computed using the time-dependent Hartree-Fock approximation. It is found that, when the system possesses spontaneous interlayer coherence, there are two gapless…

介观与纳米尺度物理 · 物理学 2009-11-07 R. Cote , H. A. Fertig

We investigate the possibility of spatially inhomogeneous chiral and Cooper, or superconducting, pairing in the (1+1)-dimensional model by Chodos et al [ Phys. Rev. D61, 045011 (2000)] generalized to continuous chiral invariance. The…

高能物理 - 理论 · 物理学 2015-06-16 D. Ebert , T. G. Khunjua , K. G. Klimenko , V. Ch. Zhukovsky

We show that dissipative effects have a significant impact on the evolution of cosmological scalar fields, leading to friction, entropy production and field fluctuations. We explicitly compute the dissipation coefficient for different…

高能物理 - 唯象学 · 物理学 2015-05-06 Sam Bartrum , Arjun Berera , Joao G. Rosa

It is conjectured that the anomalous spin dynamics observed in the normal state of cuprate superconductors might find its origin in a nearly ordered spin system which is kept in motion by thermally meandering charged domain walls.…

超导电性 · 物理学 2009-10-30 J. Zaanen , W. van Saarloos

The formation of inhomogeneous chiral condensates in QCD matter at nonzero density and temperature is investigated for the first time with Dyson-Schwinger equations. We consider two massless quark flavors in a so-called chiral density wave,…

高能物理 - 唯象学 · 物理学 2013-12-03 Daniel Müller , Michael Buballa , Jochen Wambach

It has been believed since the paper by Fischler, Kogut and Susskind (FKS) that in QED_2 at finite charge density the chiral condensate exhibits a spatially inhomogeneous, oscillating behaviour. In this paper we demonstrate that this…

高能物理 - 理论 · 物理学 2008-11-26 Max A. Metlitski

We develop a dynamical model to describe critical fluctuations in heavy-ion collisions, incorporating the baryon diffusion current and chiral condensate as dynamical degrees of freedom, to address their nontrivial scale separation. The…

核理论 · 物理学 2025-02-26 Azumi Sakai , Koichi Murase , Hirotsugu Fujii , Tetsufumi Hirano

Fracton phases are a particularly exotic type of quantum spin liquids where the elementary quasiparticles are intrinsically immobile. These phases may be described by unconventional gauge theories known as tensor or multipolar gauge…

强关联电子 · 物理学 2023-05-15 Nils Niggemann , Yasir Iqbal , Johannes Reuther

We study collisions between nearly planar domain walls including the effects of small initial nonplanar fluctuations. These perturbations represent the small fluctuations that must exist in a quantum treatment of the problem. In a previous…

高能物理 - 理论 · 物理学 2017-11-09 Jonathan Braden , J. Richard Bond , Laura Mersini-Houghton