Nonlinear wave propagation in large extra spatial dimensions and the blackbody thermal laws

IF 2 3区物理与天体物理 Q2 PHYSICS, MATHEMATICAL

Journal of Physics A: Mathematical and Theoretical Pub Date : 2024-08-14 DOI:10.1088/1751-8121/ad6c03

I Soares, R Turcati, S B Duarte

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引用次数: 0

Abstract

Nonlinear wave propagation in large extra spatial dimensions (on and above d = 2) is investigated in the context of nonlinear electrodynamics theories that depend exclusively on the invariant

F(=−(1/4)FμνFμν)

. In this vein, we consider propagating waves under the influence of external uniform electric and magnetic fields. Features related to the blackbody radiation in the presence of a background constant electric field such as the generalization of the spectral energy density distribution and the Stefan–Boltzmann law are obtained. Interestingly enough, anisotropic contributions to the frequency spectrum appear in connection to the nonlinearity of the electromagnetic field. In addition, the long wavelength regime and Wien’s displacement law in this situation are studied. The corresponding thermodynamics quantities at thermal equilibrium, such as energy, pressure, entropy, and heat capacity densities are contemplated as well.

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大额外空间维度中的非线性波传播与黑体热定律

我们在非线性电动力学理论的背景下研究了大额外空间维度（d = 2 及以上）的非线性波传播，这些理论完全依赖于不变量 F(=-(1/4)FμνFμν)。因此，我们考虑的是在外部均匀电场和磁场影响下传播的波。我们得到了存在背景恒定电场时黑体辐射的相关特征，如光谱能量密度分布的广义化和斯蒂芬-玻尔兹曼定律。有趣的是，频谱的各向异性贡献与电磁场的非线性有关。此外，还研究了这种情况下的长波长制度和维恩位移定律。还考虑了热平衡时的相应热力学量，如能量、压力、熵和热容量密度。

本文章由计算机程序翻译，如有差异，请以英文原文为准。

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来源期刊

Journal of Physics A: Mathematical and Theoretical 物理-物理：数学物理

CiteScore

4.10

自引率

14.30%

发文量

542

审稿时长

1.9 months

期刊介绍： Publishing 50 issues a year, Journal of Physics A: Mathematical and Theoretical is a major journal of theoretical physics reporting research on the mathematical structures that describe fundamental processes of the physical world and on the analytical, computational and numerical methods for exploring these structures.