Quantum Optics Seminar: Dynamics of non-Markovian open quantum systems with gaussian bosonic environments

Rahul Trivedi (MPQ)
I will consider a general class of models with a local quantum system interacting with an environment described by a bosonic free field theory.

Rahul Trivedi (MPQ)
Group seminar (hybrid format: online/seminar room B2.46)
Fri, 3 December 2021, 14:30 pm (MEZ)
 

Abstract:

I will consider a general class of models with a local quantum system interacting with an environment described by a bosonic free field theory. I will talk about two aspects of these models:

What are the continuity properties of the unitary group describing dynamics of this model - is the unitary group strongly continuous, or not. While i do not yet have a definitive result on this question, I will describe some of the existing results for Markovian models and outline some approaches that can be used to generalize them to the non-Markovian case.

If the local system is many-body, then I will show that for a large class of physically reasonable non-Markovian models, the dynamics of the many-body system is in the BQP complexity class.