Long-Range Coherence and Multiple Steady States in a Lossy Qubit Array.
| cam.issuedOnline | 2020-12-09 | |
| dc.contributor.author | Dutta, Shovan | |
| dc.contributor.author | Cooper, Nigel R | |
| dc.contributor.orcid | Dutta, Shovan [0000-0002-3534-6920] | |
| dc.contributor.orcid | Cooper, Nigel [0000-0002-4662-1254] | |
| dc.date.accessioned | 2020-12-11T00:30:52Z | |
| dc.date.available | 2020-12-11T00:30:52Z | |
| dc.date.issued | 2020-12-11 | |
| dc.description.abstract | We show that a simple experimental setting of a locally pumped and lossy array of two-level quantum systems can stabilize states with strong long-range coherence. Indeed, by explicit analytic construction, we show there is an extensive set of steady-state density operators, from minimally to maximally entangled, despite this being an interacting open many-body problem. Such nonequilibrium steady states arise from a hidden symmetry that stabilizes Bell pairs over arbitrarily long distances, with unique experimental signatures. We demonstrate a protocol by which one can selectively prepare these states using dissipation. Our findings are accessible in present-day experiments. | |
| dc.format.medium | ||
| dc.identifier.doi | 10.17863/CAM.62100 | |
| dc.identifier.eissn | 1079-7114 | |
| dc.identifier.issn | 0031-9007 | |
| dc.identifier.uri | https://www.repository.cam.ac.uk/handle/1810/314992 | |
| dc.language | eng | |
| dc.publisher | American Physical Society (APS) | |
| dc.publisher.url | http://dx.doi.org/10.1103/PhysRevLett.125.240404 | |
| dc.rights | All rights reserved | |
| dc.subject | cond-mat.quant-gas | |
| dc.subject | cond-mat.quant-gas | |
| dc.subject | quant-ph | |
| dc.title | Long-Range Coherence and Multiple Steady States in a Lossy Qubit Array. | |
| dc.type | Article | |
| dcterms.dateAccepted | 2020-11-11 | |
| prism.issueIdentifier | 24 | |
| prism.publicationDate | 2020 | |
| prism.publicationName | Phys Rev Lett | |
| prism.startingPage | 240404 | |
| prism.volume | 125 | |
| pubs.funder-project-id | Engineering and Physical Sciences Research Council (EP/P009565/1) | |
| pubs.funder-project-id | Simons Foundation (511029) | |
| rioxxterms.licenseref.startdate | 2020-12 | |
| rioxxterms.licenseref.uri | http://www.rioxx.net/licenses/all-rights-reserved | |
| rioxxterms.type | Journal Article/Review | |
| rioxxterms.version | VoR | |
| rioxxterms.versionofrecord | 10.1103/PhysRevLett.125.240404 |
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