Indico has been updated to v3.3. See our blog post for details on this release. (OTG0146394)

Jun 5 – 11, 2022
McMaster University
America/Toronto timezone
Welcome to the 2022 CAP Congress Program website! / Bienvenue au siteweb du programme du Congrès de l'ACP 2022!

(I) Markovian master equation for correlated initial states

Jun 6, 2022, 1:30 PM
MDCL 1115 (McMaster University)

MDCL 1115

McMaster University

Invited Speaker / Conférencier(ère) invité(e) Theoretical Physics / Physique théorique (DTP-DPT) M2-2 Mathematical and Theoretical Physics (DTP) | Physique mathématique et physique théorique (DPT)


Marco Merkli (Memorial University)


The dynamics of a quantum system in contact with some external surroundings (a `reservoir') is complex. The total system-reservoir evolution is governed by the (global) Schrödinger equation, but the reduced system dynamical equations are not of that form. If the reservoir is vast and has a short correlation time (little memory), then a markovian approximation is known to be valid. The approximate system dynamics is the solution of the famous markovian master equation. The derivation of the master equation is based on initial states in which the system and the reservoir are uncorrelated (of product form). In many situations, however, such initial conditions are not reasonable. In this talk, we address the case of (classically or quantum) correlated initial states and ask: Is the markovian approximation still valid? In this talk, we show that the answer is YES for a standard class of open system models, where a small system is coupled to a reservoir (quantum field) of thermal oscillators.

The talk is based on the work

Primary author

Marco Merkli (Memorial University)

Presentation materials

There are no materials yet.