Complex Systems and Biological Physics Seminars

A real time cavity method for dynamics of quantum networks

Name: A real time cavity method for dynamics of quantum networks
Start: 2021-05-27T13:00:00+02:00
End: 2021-05-27T14:00:00+02:00
Location: No location set

by Dr Jan Tuziemski (SU)

Thursday 27 May 2021, 13:00 → 14:00 Europe/Stockholm

https://kth-se.zoom.us/j/64869809310

Description

In this talk I will discuss a new method that allows to study dynamics of open quantum systems. Inspired by the cavity method from statistical physics, I will show that a network of harmonic oscillators on a finite-degree random graph can be described in terms of a message-passing algorithm, where the role of messages is played by the appropriate Feynman-Vernon influence functionals. I will present the solution of the fixed point equations in the simplest ferromagnetic case, and discuss its physical consequences.

This is a joint project with E. Aurell and R. Mulet

Location: https://kth-se.zoom.us/j/64869809310