Real-time Krylov subspace methods are extended to Lindblad open quantum systems and demonstrated on a Kerr resonator for estimating the Liouvillian gap in cat qubit regimes.
Driven-dissipative phase transition in a Kerr oscillator: From semiclassical PT symmetry to quantum fluctuations
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Real-time Krylov Diagonalisation for Open Quantum Systems
Real-time Krylov subspace methods are extended to Lindblad open quantum systems and demonstrated on a Kerr resonator for estimating the Liouvillian gap in cat qubit regimes.