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dc.contributor.authorSantos, Raul A.
dc.contributor.authorIemini, Fernando
dc.contributor.authorKamenev, Alex
dc.contributor.authorGefen, Yuval
dc.date.accessioned2020-11-19T16:19:19Z
dc.date.available2020-11-19T16:19:19Z
dc.date.issued2020-11-19
dc.date.submitted2020-01-10
dc.identifier.others41467-020-19646-4
dc.identifier.other19646
dc.identifier.urihttps://www.repository.cam.ac.uk/handle/1810/313113
dc.descriptionFunder: ERC Starting Grant No. 678795 TopInSy
dc.description.abstractAbstract: Quantum systems are always subject to interactions with an environment, typically resulting in decoherence and distortion of quantum correlations. It has been recently shown that a controlled interaction with the environment may actually help to create a state, dubbed as “dark”, which is immune to decoherence. To encode quantum information in the dark states, they need to span a space with a dimensionality larger than one, so different orthogonal states act as a computational basis. Here, we devise a symmetry-based conceptual framework to engineer such degenerate dark spaces (DDS), protected from decoherence by the environment. We illustrate this construction with a model protocol, inspired by the fractional quantum Hall effect, where the DDS basis is isomorphic to a set of degenerate Laughlin states. The long-time steady state of our driven-dissipative model exhibits thus all the characteristics of degenerate vacua of a unitary topological system.
dc.languageen
dc.publisherNature Publishing Group UK
dc.rightsAttribution 4.0 International (CC BY 4.0)en
dc.rights.urihttps://creativecommons.org/licenses/by/4.0/en
dc.subjectArticle
dc.subject/639/766/36/1125
dc.subject/639/766/119
dc.subject/639/766/483/2802
dc.subject/129
dc.subject/119
dc.subjectarticle
dc.titleA possible route towards dissipation-protected qubits using a multidimensional dark space and its symmetries
dc.typeArticle
dc.date.updated2020-11-19T16:19:18Z
prism.issueIdentifier1
prism.publicationNameNature Communications
prism.volume11
dc.identifier.doi10.17863/CAM.60216
dcterms.dateAccepted2020-10-13
rioxxterms.versionofrecord10.1038/s41467-020-19646-4
rioxxterms.versionVoR
rioxxterms.licenseref.urihttps://creativecommons.org/licenses/by/4.0/
dc.contributor.orcidSantos, Raul A. [0000-0003-1161-1328]
dc.identifier.eissn2041-1723
pubs.funder-project-idRCUK | Engineering and Physical Sciences Research Council (EPSRC) (EP/M02444X/1)


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Attribution 4.0 International (CC BY 4.0)
Except where otherwise noted, this item's licence is described as Attribution 4.0 International (CC BY 4.0)