2018/10/31 by Angsar Manatuly, Wolfgang Niedenzu, R. Román-Ancheyta +4 · 59 citations
Computer Science · Physics and Astronomy · #Advanced Thermodynamics and Statistical Mechanics #Algorithm #Cluster (spacecraft) #Cluster state #Coherence (philosophical gambling strategy) #Computer science #Physics #Quantum #Quantum Information and Cryptography #Quantum Mechanics and Applications #Quantum mechanics #Qubit #State (computer science) #Thermal #Thermalisation #Time evolution #quant-ph
paper · pdf · doi:10.1103/physreve.99.042145
published in Physical review. E 99(4), 042145 (American Physical Society) · 9 pages, 8 figures
openalex publication_date 2019/04/29 · arxiv created 2019/05/02 · arxiv updated 2019/05/03 · openalex created_date 2025/10/10 · openalex updated_date 2026/08/05
We investigate the evolution of a target qubit caused by its multiple random collisions with N-qubit clusters. Depending on the cluster state, the evolution of the target qubit may correspond to its effective interaction with a thermal bath, a coherent (laser) drive, or a squeezed bath. In cases where the target qubit relaxes to a thermal state, its dynamics can exhibit a quantum advantage, whereby the target-qubit temperature can be scaled up proportionally to N2 and the thermalization time can be shortened by a similar factor, provided the appropriate coherence in the cluster is prepared by nonthermal means. We dub these effects quantum superthermalization because of the analogies to superradiance. Experimental realizations of these effects are suggested.