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arXiv · 1904.04843

Spacetime Equilibrium at Negative Temperature and the Attraction of Gravity

Ted Jacobson·Manus R. Visser
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Abstract

We derive the Einstein equation from the condition that every small causal diamond is a variation of a flat empty diamond with the same free conformal energy, as would be expected for a near-equilibrium state. The attractiveness of gravity hinges on the negativity of the absolute temperature of these diamonds, a property we infer from the generalized entropy.

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Ted Jacobson, Manus R. Visser. 2019-04-09. Spacetime Equilibrium at Negative Temperature and the Attraction of Gravity. https://doi.org/10.1142/s0218271819440164

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