Holographic heat engines and static black holes: A general efficiency formula

Holographic heat engines and static black holes: A general efficiency formula
复制标题

DOI:
10.1142/s0218271819500305
复制
发表时间:
2018-01
影响因子:
2.2
通讯作者:
F. Rosso
F. Rosso
中科院分区:
物理与天体物理4区
文献类型:
--
作者:
F. Rosso

文献摘要

被引文献

相似文献

从对静态黑洞(或任何具有[公式:参见文本]的热力学系统)的热流的简单观察开始,我们得到了限制它们在[公式:参见文本]平面内的能量和绝热曲线变化的不等式。从这些观察中,我们得到了一个精确的效率公式,它的工作物质是静态黑洞,实际上是由[公式:见文本]平面中的一个循环定义的任何全息热机。此外,我们还得到了它的效率的一个上界,并证明了对于某一类黑洞,这个上界是普遍存在的,并且是由“理想气体”黑洞实现的。最后,我们计算了一些特定的和新的发动机的精确效率。
Starting from simple observations regarding heat flows for static black holes (or any thermodynamic system with [Formula: see text]), we get inequalities which restrict their change in energy and adiabatic curves in the [Formula: see text] plane. From these observations, we then derive an exact efficiency formula for virtually any holographic heat engine defined by a cycle in the [Formula: see text] plane, whose working substance is a static black hole. Moreover, we get an upper bound for its efficiency and show that for a certain class of black holes, this bound is universal and achieved by an “ideal gas” hole. Finally, we compute exact efficiencies for some particular and new engines.