Reservoir engineering with localized dissipation: Dynamics and prethermalization
Reservoir engineering lattice states using only localized engineered dissipation is extremely attractive from a resource point of view, but can suffer from long relaxation times. Here we study the relaxation dynamics of bosonic lattice systems locally coupled to a single squeezed reservoir. Such sys...
| Main Authors: | , |
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| Format: | Article |
| Language: | English |
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American Physical Society
2020-05-01
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| Series: | Physical Review Research |
| Online Access: | http://doi.org/10.1103/PhysRevResearch.2.023177 |
| _version_ | 1797211444987559936 |
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| author | Yariv Yanay Aashish A. Clerk |
| author_facet | Yariv Yanay Aashish A. Clerk |
| author_sort | Yariv Yanay |
| collection | DOAJ |
| description | Reservoir engineering lattice states using only localized engineered dissipation is extremely attractive from a resource point of view, but can suffer from long relaxation times. Here we study the relaxation dynamics of bosonic lattice systems locally coupled to a single squeezed reservoir. Such systems can relax into a highly nontrivial pure state with long-range entanglement. In the limit of large system size, analytic expressions for the dissipation spectrum can be found by making an analogy to scattering from a localized impurity. This allows us to study the crossover from perturbative relaxation to a slow, quantum-Zeno regime. We also find the possibility of regimes of accelerated relaxation due to a surprising impedance matching phenomenon. We also study intermediate time behaviors, identifying a long-lived “prethermalized” state that exists within a light-cone like area. This intermediate state can be quasistationary, and can have very different entanglement properties from the ultimate dissipative steady state. |
| first_indexed | 2024-04-24T10:26:36Z |
| format | Article |
| id | doaj.art-048ed6895b7149a8b9e1a1d66e1b92a0 |
| institution | Directory Open Access Journal |
| issn | 2643-1564 |
| language | English |
| last_indexed | 2024-04-24T10:26:36Z |
| publishDate | 2020-05-01 |
| publisher | American Physical Society |
| record_format | Article |
| series | Physical Review Research |
| spelling | doaj.art-048ed6895b7149a8b9e1a1d66e1b92a02024-04-12T16:54:03ZengAmerican Physical SocietyPhysical Review Research2643-15642020-05-012202317710.1103/PhysRevResearch.2.023177Reservoir engineering with localized dissipation: Dynamics and prethermalizationYariv YanayAashish A. ClerkReservoir engineering lattice states using only localized engineered dissipation is extremely attractive from a resource point of view, but can suffer from long relaxation times. Here we study the relaxation dynamics of bosonic lattice systems locally coupled to a single squeezed reservoir. Such systems can relax into a highly nontrivial pure state with long-range entanglement. In the limit of large system size, analytic expressions for the dissipation spectrum can be found by making an analogy to scattering from a localized impurity. This allows us to study the crossover from perturbative relaxation to a slow, quantum-Zeno regime. We also find the possibility of regimes of accelerated relaxation due to a surprising impedance matching phenomenon. We also study intermediate time behaviors, identifying a long-lived “prethermalized” state that exists within a light-cone like area. This intermediate state can be quasistationary, and can have very different entanglement properties from the ultimate dissipative steady state.http://doi.org/10.1103/PhysRevResearch.2.023177 |
| spellingShingle | Yariv Yanay Aashish A. Clerk Reservoir engineering with localized dissipation: Dynamics and prethermalization Physical Review Research |
| title | Reservoir engineering with localized dissipation: Dynamics and prethermalization |
| title_full | Reservoir engineering with localized dissipation: Dynamics and prethermalization |
| title_fullStr | Reservoir engineering with localized dissipation: Dynamics and prethermalization |
| title_full_unstemmed | Reservoir engineering with localized dissipation: Dynamics and prethermalization |
| title_short | Reservoir engineering with localized dissipation: Dynamics and prethermalization |
| title_sort | reservoir engineering with localized dissipation dynamics and prethermalization |
| url | http://doi.org/10.1103/PhysRevResearch.2.023177 |
| work_keys_str_mv | AT yarivyanay reservoirengineeringwithlocalizeddissipationdynamicsandprethermalization AT aashishaclerk reservoirengineeringwithlocalizeddissipationdynamicsandprethermalization |