Warning: "continue" targeting switch is equivalent to "break". Did you mean to use "continue 2"? in /customers/3/5/4/lfhs.eu/httpd.www/WordPress/wp-content/plugins/social-networks-auto-poster-facebook-twitter-g/inc/nxs_functions_engine.php on line 173 Warning: "continue" targeting switch is equivalent to "break". Did you mean to use "continue 2"? in /customers/3/5/4/lfhs.eu/httpd.www/WordPress/wp-content/plugins/social-networks-auto-poster-facebook-twitter-g/inc/nxs_functions_engine.php on line 180 Entanglement and Chaos: Linear entropy production at instabilities - LFHs - Space for Lucas Fabian Hackl
03/10/2017

Entanglement and Chaos: Linear entropy production at instabilities

Quantum Lunch Seminar (QMATH Centre), University of Copenhagen

The rate of entropy production in a classical dynamical system is characterized by the Kolmogorov-Sinai entropy rate given by the sum over all positive Lyapunov exponents of the system. I will prove a quantum version of this result valid for bosonic systems with unstable quadratic Hamiltonian: the entanglement entropy of squeezed coherent states grows linearly for large times, with a rate determined by the Lyapunov exponents and the choice of the subsystem. I will discuss its application to quantum field theory and explain our conjecture on what this result implies for quantum chaos and thermalization in systems with periodic orbits.

[Slides]