Entropy of Causal Horizons

Eric M Howard

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arXiv · 1609.09795

Entropy of Causal Horizons

Eric M Howard

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Abstract

We analyze spacetimes with horizons and study the thermodynamic aspects of causal horizons, suggesting that the resemblance between gravitational and thermodynamic systems has a deeper quantum mechanical origin. We find that the observer dependence of such horizons is a direct consequence of associating a temperature and entropy to a spacetime. The geometrical picture of a horizon acting as a one-way membrane for information flow can be accepted as a natural interpretation of assigning a quantum field theory to a spacetime with boundary, ultimately leading to a close connection with thermodynamics.

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Eric M Howard. 2016-09-23. Entropy of Causal Horizons. https://arxiv.org/abs/1609.09795

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