Quantum Phase Transitions in an Accelerated Medium

IF 0.6 4区 物理与天体物理 Q4 PHYSICS, PARTICLES & FIELDS
G. Yu. Prokhorov, O. V. Teryaev, V. I. Zakharov
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引用次数: 0

Abstract

The usual Minkowski vacuum in an accelerated frame of reference is known to look like a “thermal bath” of particles. This effect is well known and called the Unruh effect, and is an analog of Hawking radiation in space with zero curvature. Thus, the Minkowski vacuum looks like a heated medium from the point of view of an accelerated observer, and the natural goal is to study the properties of such a medium in more detail. We show that if the Minkwoski vacuum is cooled, and we achieve a temperature below the Unruh temperature, then a phase transition occurs associated with the “fall beyond the horizon” of the lower Matsubara modes. This transition has many remarkable features, for example, for massless particles it is “polynomial,” and is also associated with the breaking of conformal symmetry.

加速介质中的量子相变
摘要 众所周知,在加速参照系中,通常的闵科夫斯基真空看起来就像一个粒子的 "热浴"。这种效应众所周知,被称为 "恩鲁效应"(Unruh effect),与零曲率空间中的霍金辐射类似。因此,从加速观察者的角度看,闵科夫斯基真空就像一个加热的介质,我们的目标自然是更详细地研究这种介质的特性。我们的研究表明,如果冷却闵科夫斯基真空,使其温度低于温儒赫温度,那么就会发生与低松原模式 "跌落到地平线之外 "相关的相变。这一转变有许多显著特点,例如,对于无质量粒子来说,它是 "多项式 "的,而且还与共形对称性的打破有关。
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来源期刊
Physics of Particles and Nuclei
Physics of Particles and Nuclei 物理-物理:粒子与场物理
CiteScore
1.00
自引率
0.00%
发文量
116
审稿时长
6-12 weeks
期刊介绍: The journal Fizika Elementarnykh Chastits i Atomnogo Yadr of the Joint Institute for Nuclear Research (JINR, Dubna) was founded by Academician N.N. Bogolyubov in August 1969. The Editors-in-chief of the journal were Academician N.N. Bogolyubov (1970–1992) and Academician A.M. Baldin (1992–2001). Its English translation, Physics of Particles and Nuclei, appears simultaneously with the original Russian-language edition. Published by leading physicists from the JINR member states, as well as by scientists from other countries, review articles in this journal examine problems of elementary particle physics, nuclear physics, condensed matter physics, experimental data processing, accelerators and related instrumentation ecology and radiology.
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