76 citations · 82 across the 2 of their papers we have counts for
6 papers
Diagnosing quantum chaos with out-of-time-ordered-correlator quasiprobability in the kicked-top model
José Raúl González Alonso, Nathan Shammah, Shahnawaz Ahmed +2
While classical chaos has been successfully characterized with consistent theories and intuitive techniques, such as with the use of Lyapunov exponents, quantum chaos is still poor…
Exceptional Point and Cross-Relaxation Effect in a Hybrid Quantum System
Guo-Qiang Zhang, Zhen Chen, Da Xu +7
Exceptional points (EPs) are exotic degeneracies of non-Hermitian systems, where the eigenvalues and the corresponding eigenvectors simultaneously coalesce in parameter space, and…
Symmetries and conserved quantities of boundary time crystals in generalized spin models
Giulia Piccitto, Matteo Wauters, Franco Nori +1
We investigate how symmetries and conserved quantities relate to the occurrence of the boundary time crystal (BTC) phase in a generalized spin model with Lindblad dissipation. BTCs…
Dissipation-induced bistability in the two-photon Dicke model
Louis Garbe, Peregrine Wade, Fabrizio Minganti +3
The Dicke model is a paradigmatic quantum-optical model describing the interaction of a collection of two-level systems with a single bosonic mode. Effective implementations of thi…
Multielectron Ground State Electroluminescence
Mauro Cirio, Nathan Shammah, Neill Lambert +2
The ground state of a cavity-electron system in the ultrastrong coupling regime is characterized by the presence of virtual photons. If an electric current flows through this syste…
Open quantum systems with local and collective incoherent processes: Efficient numerical simulation using permutational invariance
Nathan Shammah, Shahnawaz Ahmed, Neill Lambert +2
The permutational invariance of identical two-level systems allows for an exponential reduction in the computational resources required to study the Lindblad dynamics of coupled sp…