Spectral theory of non-Markovian dissipative phase transitions

B Debecker, J Martin, F Damanet - Physical Review A, 2024 - APS
Dissipative phase transitions in quantum systems have been largely studied under the so-
called Markovian approximation, where the environments to which the systems are coupled …

Dynamical signatures of discontinuous phase transitions: How phase coexistence determines exponential versus power-law scaling

K Ptaszyński, M Esposito - Physical Review E, 2024 - APS
There are conflicting reports in the literature regarding the finite-size scaling of the
Liouvillian gap and dynamical fluctuations at discontinuous phase transitions, with various …

Dissipative phase transition: From qubits to qudits

L Pausch, F Damanet, T Bastin, J Martin - Physical Review A, 2024 - APS
We investigate the fate of dissipative phase transitions in quantum many-body systems
when the individual constituents are qudits (d-level systems) instead of qubits. As an …