The Physics of Information

Abstract

Information theory is a statistical theory concerned with the relative state of detectors and physical systems. As a consequence, the classical framework of Shannon needs to be extended to deal with quantum detectors, possibly moving at relativistic speeds, conceivably within curved space-time. Considerable progress toward such a theory has been achieved in the last ten years, while much is still not understood. This review recapitulates some milestones along this road, and speculates about future ones.

Review. 28 pages, 3 figures, requires iopart.cls

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• When conceptual worlds collide: The GUP and the BH entropy
• Generalized Uncertainty Principle: Approaches and Applications
• Glimmers of a pre-geometric perspective
• Entanglement entropy for non-coplanar regions in quantum field theory
• Cold Black Holes in the Harlow-Hayden Approach to Firewalls
• Brane-world black hole entropy from modified dispersion relations
• Uncertainty Relation from Holography Principle
• Quelling the concerns of EPR and Bell