Centre de Physique Théorique

Agenda

Mercredi 11 novembre 2020

14h00 – 15h00, Amphi 5 du CPT

TBA

Chiara Saffirio, Université de Basel, Suisse

14h00 – 15h00, online-

Adiabatic transitions in a two-level system coupled to a free Boson reservoir

Alain Joye, Institut Fourier, Grenoble

We consider a time-dependent two-level quantum system interacting with a free Boson reservoir. The coupling is energy conserving and depends slowly on time, as does the system Hamiltonian, with a common adiabatic parameter ε. Assuming that the system and reservoir are initially decoupled, with the reservoir in equilibrium at temperature T ≥ 0, we compute the transition probability from one eigenstate of the two-level system to the other eigenstate as a function of time, in the regime of small ε and small coupling constant λ. We analyse the deviation from the adiabatic transition probability obtained in absence of the reservoir. Joint work with Marco Merkli and Dominique Spehner

Agenda

novembre 2020 :

octobre 2020 | décembre 2020