2014/07/18 by Bruno Sciolla, Dario Poletti, Corinna Kollath · 2 citations
Physics and Astronomy · #Adiabatic process #Boson #Cold Atom Physics and Bose-Einstein Condensates #Computer science #Dissipative particle dynamics #Dissipative system #Exponential growth #Hamiltonian (control theory) #Measure (data warehouse) #Nuclear magnetic resonance #Observable #Physics #Quantum #Quantum dynamics #Quantum mechanics #Quantum, superfluid, helium dynamics #Relaxation (psychology) #Statistical physics #Strong Light-Matter Interactions #Time evolution #cond-mat.quant-gas #quant-ph
paper · pdf · doi:10.1103/physrevlett.114.170401
5+3 pages, 4+2 figures
arxiv created 2014/07/18 · openalex publication_date 2015/04/30 · arxiv updated 2015/06/11 · openalex created_date 2025/10/10 · openalex updated_date 2026/08/05
We use two-time correlation functions to study the complex dynamics of dissipative many-body quantum systems. In order to measure, understand, and categorize these correlations we extend the framework of the adiabatic elimination method. We show that, for the same parameters and times, two-time correlations can display two distinct behaviors depending on the observable considered: a fast exponential decay or a much slower dynamics. We exemplify these findings by studying strongly interacting bosons in a double well subjected to phase noise. While the single-particle correlations decay exponentially fast with time, the density-density correlations display slow aging dynamics. We also show that this slow relaxation regime is robust against particle losses. Additionally, we use the developed framework to show that the dynamic properties of dissipatively engineered states can be drastically different from their Hamiltonian counterparts.