Lindbladian PT Phase Transitions: A Review
Analysis
Key Takeaways
- •Defines PT symmetry in three contexts: non-Hermitian systems, dynamical systems, and Markovian open quantum systems.
- •Develops mean-field theories for L-PT phase transitions in collective-spin and bipartite bosonic systems.
- •Demonstrates the connection between L-PT transitions and continuous-time crystals and non-reciprocal phase transitions.
- •Analyzes statistical and quantum properties of steady states for specific models.
- •Discusses future research directions.
“The L-PT phase transition point is typically a critical exceptional point, where multiple collective excitation modes with zero excitation spectrum coalesce.”