论文标题
曲率的宇宙耗散模型的全息描述
Holographic description of the dissipative model of universe with curvature
论文作者
论文摘要
我们研究了具有非零曲率的Friedmann-Robertson-Walker指标中延迟宇宙的加速膨胀，该指标采用了基于Nojiri和Odintsov（2005,2006）引入的广义全息暗能模型的全息原理。我们在存在粘性流体的情况下使用概括的状态方程来描述宇宙的演变。对于热力学参数的恒定值以及各种形式的大量粘度，以显式形式获得了运动重力方程的溶液。我们根据粒子范围来计算红外临界值的分析表达式，并在全息图中得出能量保护定律。我们表明，在弗里德曼方程中包含非零曲率会导致宇宙中大撕裂的其他奇异性出现。
We investigate the accelerated expansion of the late-time universe in the Friedmann-Robertson-Walker metric with nonzero curvature, applying a holographic principle based on a generalized holographic dark energy model introduced by Nojiri and Odintsov (2005,2006). We describe the evolution of the universe using a generalized equation of state in the presence of a viscous fluid. Solutions of the gravitational equation of motions are obtained in explicit form for a constant value of the thermodynamic parameter, and for various forms of the bulk viscosity. We calculate analytic expressions for infrared cut-offs in terms of the particle horizon, and derive the energy conservation law in the holographic picture. We show that the inclusion of nonzero curvature in the Friedmann equation leads to the appearance of additional singularities of type Big Rip in the Universe.
