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Optimal stochastic unraveling of disordered open quantum systems: application to driven-dissipative photonic lattices
Filippo Vicentini, Fabrizio Minganti, Alberto Biella +2
We propose an efficient numerical method to compute configuration averages of observables in disordered open quantum systems whose dynamics can be unraveled via stochastic trajecto…
Phase diagram of the dissipative quantum Ising model on a square lattice
Jiasen Jin, Alberto Biella, Oscar Viyuela +3
The competition between interactions and dissipative processes in a quantum many-body system can drive phase transitions of different order. Exploiting a combination of cluster met…
Quantum critical regime in a quadratically-driven nonlinear photonic lattice
Riccardo Rota, Fabrizio Minganti, Cristiano Ciuti +1
We study an array of coupled optical cavities in presence of two-photon driving and dissipation. The system displays a critical behavior similar to that of a quantum Ising model at…
Vacuum-dressed cavity magnetotransport of a 2D electron gas
Nicola Bartolo, Cristiano Ciuti
We present a theory predicting how the linear magnetotransport of a two-dimensional electron gas is modified by a passive electromagnetic cavity resonator where no real photons are…
Magneto-transport controlled by Landau polariton states
Gian L. Paravicini-Bagliani, Felice Appugliese, Eli Richter +10
Hybrid excitations, called polaritons, emerge in systems with strong light-matter coupling. Usually, they dominate the linear and nonlinear optical properties with applications in…
Spectral theory of Liouvillians for dissipative phase transitions
Fabrizio Minganti, Alberto Biella, Nicola Bartolo +1
A state of an open quantum system is described by a density matrix, whose dynamics is governed by a Liouvillian superoperator. Within a general framework, we explore fundamental pr…