291 citations · 1.2k across the 24 of their papers we have counts for
24 papers
Non-Hermitian Hamiltonian Deformations in Quantum Mechanics
Apollonas S. Matsoukas-Roubeas, Federico Roccati, Julien Cornelius +3
The construction of exactly-solvable models has recently been advanced by considering integrable deformations and related Hamiltonian deformations in quantum mechanics.…
Quantum speed limits in arbitrary phase spaces
Weiquan Meng, Zhenyu Xu
Quantum speed limits (QSLs) provide an upper bound for the speed of evolution of quantum states in any physical process. Based on the Stratonovich-Weyl correspondence, we derive a…
Probing quantum chaos in multipartite systems
Zan Cao, Zhenyu Xu, Adolfo del Campo
Understanding the emergence of quantum chaos in multipartite systems is challenging in the presence of interactions. We show that the contribution of the subsystems to the global b…
Spectral Filtering Induced by Non-Hermitian Evolution with Balanced Gain and Loss: Enhancing Quantum Chaos
Julien Cornelius, Zhenyu Xu, Avadh Saxena +2
The dynamical signatures of quantum chaos in an isolated system are captured by the spectral form factor, which exhibits as a function of time a dip, a ramp, and a plateau, with th…
Thermofield dynamics: Quantum Chaos versus Decoherence
Zhenyu Xu, Aurelia Chenu, Tomaž Prosen +1
Quantum chaos imposes universal spectral signatures that govern the thermofield dynamics of a many-body system in isolation. The fidelity between the initial and time-evolving ther…
Optical signatures of Mott-superfluid transition in nitrogen-vacancy centers coupled to photonic crystal cavities
Jia-Bin You, W. L. Yang, G. Chen +4
We study the phenomenon of controllable localization-delocalization transition in a quantum many-body system composed of nitrogen-vacancy centers coupled to photonic crystal caviti…