Collectively enhanced thermalization via multiqubit collisions
| Autor: | R. Román-Ancheyta, Wolfgang Niedenzu, Gershon Kurizki, Barış Çakmak, Özgür E. Müstecaplıoğlu, Angsar Manatuly |
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| Přispěvatelé: | Müstecaplıoğlu, Özgür Esat (ORCID 0000-0002-9134-3951 & YÖK ID 1674), Roman-Ancheyta, Ricardo, Çakmak, Barış (ORCID 0000-0002-6124-3925 & YÖK ID 252838), Manatuly, Angsar, Niedenzu, Wolfgang, Kurizki, Gershon, College of Sciences, Graduate School of Sciences and Engineering, Department of Physics |
| Rok vydání: | 2018 |
| Předmět: |
Physics
Quantum Physics Cluster state FOS: Physical sciences Superradiance Open system Quantum Model 01 natural sciences Physics fluids and plasmas Physics mathematical 010305 fluids & plasmas Thermalisation Computer Science::Emerging Technologies Quantum mechanics Qubit 0103 physical sciences Thermal Cluster (physics) 010306 general physics Quantum Physics (quant-ph) Coherence (physics) |
| Zdroj: | Physical Review E |
| ISSN: | 2470-0053 |
| Popis: | 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 $N^2$ and the thermalization time can be shortened by a similar factor, provided the appropriate coherence in the cluster is prepared by non-thermal means. We dub these effects quantum super-thermalization due to its analogies to super-radiance. Experimental realizations of these effects are suggested. Comment: 9 pages, 8 figures |
| Databáze: | OpenAIRE |
| Externí odkaz: |
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