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 |
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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 |