论文标题
霍华瓦 - 利法兹重力中的紧急情况是否需要幽灵领域？
Does emergent scenario in Hořava-Lifshitz Gravity demand a ghost field?
论文作者
论文摘要
宇宙的非单明模型，即紧急情况，现在在宇宙学上众所周知。在爱因斯坦重力中，在非平衡热力学处方（无论是在第一阶和二阶理论中）具有粒子创造机制的情况下，这种类型的无奇异溶液是可能的。另外，不同的重力理论中也有各种新兴场景。目前的工作是两次尝试（i）（i）已经检查了是否可以在ho红利夫希兹修饰的重力理论中具有无奇异溶液，（ii）如果存在这种奇异溶液，则这种溶液是否在热力学上可行。发现具有幻影性质的完美流体物质分布可以为封闭模型和平坦模型生成这种类型的解决方案。最后，在明显的地平线和任何任意视野中都研究了热力学分析。
The non-singular model of the Universe i.e. emergent scenario is now very well known in cosmology. In Einstein gravity such type of singularity free solution is possible in the context of non-equilibrium thermodynamical prescription (both in first and 2nd order theory) with particle creation mechanism. Also there are various models of emergent scenario in different gravity theories. The present work is a twofold attempt namely (i) it has been examined whether it is possible to have singularity free solution in Hořava-Lifshitz modified gravity theory, (ii) if such singularity free solution exists then whether such solution is thermodynamically viable. It is found that perfect fluid matter distribution with phantom nature can generate such type of solution for closed and flat model. Finally thermodynamical analysis has been studied both at the apparent horizon and at any arbitrary horizon.
