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How Decoherence Affects the Probability of Slow-Roll Eternal Inflation
Kimberly K. Boddy, Sean M. Carroll, Jason Pollack
Slow-roll inflation can become eternal if the quantum variance of the inflaton field around its slowly rolling classical trajectory is converted into a distribution of classical sp…
Space from Hilbert Space: Recovering Geometry from Bulk Entanglement
ChunJun Cao, Sean M. Carroll, Spyridon Michalakis
We examine how to construct a spatial manifold and its geometry from the entanglement structure of an abstract quantum state in Hilbert space. Given a decomposition of Hilbert spac…
What is the Entropy in Entropic Gravity?
Sean M. Carroll, Grant N. Remmen
We investigate theories in which gravity arises as a consequence of entropy. We distinguish between two approaches to this idea: holographic gravity, in which Einstein's equation a…