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arXiv 1808.01243hep-thastro-ph.HEgr-qcquant-ph
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双狭义相对论中普朗克尺度下的光子气体

Photon Gas at the Planck Scale within the Doubly Special Relativity

W. S. Chung, A. M. Gavrilik, A. V. Nazarenko

摘要:

在Magueijo和Smolin提出的双狭义相对论(DSR)方法中,提出了一种新的全同粒子能量的代数证明的$κ$ -加法规则.该规则允许对单模多光子(子)系统引入非线性的$κ$相关哈密顿量。在此基础上,将不同模式视为独立模式,在DSR框架下对黑体辐射进行了热力学研究,得到了主要的热力学量。在他们的推导过程中,我们使用的分析工具内的平均场近似(MFA)和数值计算的基础上精确的公式。证明了单模子系统的熵是有限(有界)的。另一个不寻常的结果是阈值温度的存在,高于该阈值温度,辐射就存在。所获得的结果的具体特点进行了解释,并说明了一些情节。与相关的一些作品进行了比较。

英文摘要:

Within the approach to doubly special relativity (DSR) suggested by Magueijo and Smolin, a new algebraically justified rule of so-called $κ$-addition for the energies of identical particles is proposed. This rule permits to introduce the nonlinear $κ$-dependent Hamiltonian for one-mode multi-photon (sub)system. On its base, with different modes treated as independent, the thermodynamics of black-body radiation is explored within DSR, and main thermodynamic quantities are obtained. In their derivation, we use both the analytical tools within mean field approximation (MFA) and numerical evaluations based on exact formulas. The entropy of one-mode subsystem turns out to be finite (bounded). Another unusual result is the existence of threshold temperature above which radiation is present. Specific features of the obtained results are explained and illustrated with a number of plots. Comparison with some works of relevance is given.

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