发表机构
Islamic Azad University（伊斯兰阿扎德大学）
机构由 AI 辅助整理，请以论文原文为准。AI 中文总结
该研究在协变热力学框架下推导了正压流体与广义 Chaplygin 气体的温度洛伦兹变换，揭示负压强会抑制正压流体相对论加速下的温度增长，而 Chaplygin 气体的变换温度随速度单调增加。
AI 中文摘要
我们在协变热力学框架内研究具有负压强的有效宇宙流体的温度相对论变换。针对物态方程为 $p=w\rho$ 的正压流体，以及物态方程为 $p=-A/\rho^\alpha$ 的（广义） Chaplygin 气体，推导了温度的洛伦兹变换。对于具有恒定负物态方程参数的正压流体，我们表明负压强会抑制相对论加速下的温度增长；相比之下，Chaplygin 气体因压强依赖于密度，呈现出定性不同的行为，导致变换后的温度随速度单调增加。通过代表性示例说明了相对论温度对相对速度和背景能量密度的依赖关系。
英文摘要
We study the relativistic transformation of temperature for effective cosmological fluids with negative pressure within a covariant thermodynamic framework. The Lorentz transformation of temperature is derived for barotropic fluids with $p=wρ$ and for the (generalized) Chaplygin gas with $p=-A/ρ^α$. For barotropic fluids with constant negative equation-of-state parameter, we show that negative pressure suppresses the growth of temperature under relativistic boosts. In contrast, the Chaplygin gas exhibits a qualitatively different behavior due to its density-dependent pressure, leading to a monotonic increase of the transformed temperature with velocity. The dependence of the relativistic temperature on the relative velocity and background energy density is illustrated through representative examples.
Comments10 pages, two figures,
