Exact Results in Quantum Theory & Gravity

The well known connection between coarse-graining and statistical thermodynamics has recently been given a very precise formulation in terms of "observational entropy'', providing a useful notion of quantum entropy both in and out of equilibrium. In this talk I will describe how this approach gives rise to a family of measures of quantum correlation and entanglement, by minimizing observational entropy over different sets of local operations, and discuss the role of these correlations in non-equilibrium thermodynamics. The talk relates to arXiv:2005.05408.Zoom Meeting ID: 817 7402 3863 Passcode: 346973