Pour vous authentifier, privilégiez eduGAIN / To authenticate, prefer eduGAINeu

Hidden strong symmetries and quasi-local charges in a local Lindblad system

Jun 27, 2023, 12:40 PM
Institut Pascal

Institut Pascal

Rue André Rivière 91400 Orsay


Balázs Pozsgay


We consider an open spin chain with external driving in the bulk, described by the Lindblad equation. We show that in certain cases the system can have hidden strong symmetries, in the form of quasi-local operators. These lead to conserved charges, and the existence of multiple NESS: The system will keep memory of the initial state, even though the obvious symmetries of the Hamiltonian are broken.

Presentation materials

There are no materials yet.