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MP: Fachverband Theoretische und Mathematische Grundlagen der Physik

MP 3: HV Osborne

MP 3.1: Invited Talk

Tuesday, March 17, 2015, 12:00–12:40, HFT-FT 101

Quantum information measures for quantum fields — •Tobias Osborne — Institut für Theoretische Physik, Leibniz Universität Hannover, Hannover, Germany

I discuss how to endow the set of (cutoff) quantum field states with an operationally motivated information geometry using quantum information distance measures. This is done by recognising that all measurements are inherently imperfect so that microscopic details are effectively indistinguishable experimentally. A procedure to identify the corresponding induced equivalence classes of microscopic states will be described. These equivalence classes may be modelled with a simpler effective Hilbert space. Connections to the AdS/CFT correspondence will be sketched and I will explain how the resulting structure allows one to quantify information loss along RG trajectories.