The thermal entropy density of spacetime [PDF]
Rongjia YangWe introduce the notion of thermal entropy density, and first obtain the thermal entropy density of any arbitrary spacetime without firstly assuming a temperature or a horizon. The results indicate that gravity possesses thermal effects or therm entropy density possesses effects of gravity. The results also imply that, besides gravity, the thermal entropy density can also be geometrized.View original: http://arxiv.org/abs/1110.5810
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