28–30 Sept 2026
Europe/Warsaw timezone

Stochastic Bogoliubov–de Gennes Approach to Nonequilibrium Fermionic Superfluidity

29 Sept 2026, 12:00
20m
D-332

D-332

Instytut Fizyki UMCS pl. M. Curie-Skłodowskiej 1 20-031 Lublin
Seminar Session 3

Speaker

Dimitri Lazarou (Warsaw University Of Technology)

Description

We formulate a stochastic extension of the time-dependent Bogoliubov–de Gennes formalism to describe thermalization in fermionic superfluids. The approach combines particle-number-conserving fluctuations of the local pairing field with quantum cooling in the particle–particle channel. This framework enables us to model relaxation and thermalization at fixed excitation energy. We investigate the resulting nonequilibrium evolution of the pairing field and analyze the thermodynamic and entanglement entropies of the system to determine whether, and under what conditions, thermalization occurs.

Authors

Dimitri Lazarou (Warsaw University Of Technology) Gabriel Wlazłowski (Warsaw University of Techonology) Piotr Magierski (Warsaw University of Technology)

Presentation materials