Bonn 2020 – scientific programme

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MP: Fachverband Theoretische und Mathematische Grundlagen der Physik

MP 17: Quantum Information and QFT

MP 17.2: Talk

Thursday, April 2, 2020, 15:40–16:00, H-HS VII

Entanglement in a non-relativistic QFT — •Natalia Sánchez-Kuntz — Institut für Theoretische Physik Universität Heidelberg

This presentation gives a quick overview of the mathematical methods used to calculate entanglement entropy for Gaussian states, and takes this formalism to the particular case of fields which follow a Bogoliubov dispersion relation, concentrating on the vacuum state. The main objective of this contribution is to show the difficulties encountered when approaching this problem, regarding both, divergencies and the expression of the theory in an adequate set of basis functions.