Persistent quantum beats and long-distance entanglement from waveguide-mediated interactions.

dc.contributor.author

Zheng, Huaixiu

dc.contributor.author

Baranger, Harold U

dc.date.accessioned

2023-01-14T14:41:49Z

dc.date.available

2023-01-14T14:41:49Z

dc.date.issued

2013-03

dc.date.updated

2023-01-14T14:41:49Z

dc.description.abstract

We study photon-photon correlations and entanglement generation in a one-dimensional waveguide coupled to two qubits with an arbitrary spatial separation. To treat the combination of nonlinear elements and 1D continuum, we develop a novel Green function method. The vacuum-mediated qubit-qubit interactions cause quantum beats to appear in the second-order correlation function. We go beyond the Markovian regime and observe that such quantum beats persist much longer than the qubit lifetime. A high degree of long-distance entanglement can be generated, increasing the potential of waveguide-QED systems for scalable quantum networking.

dc.identifier.issn

0031-9007

dc.identifier.issn

1079-7114

dc.identifier.uri

https://hdl.handle.net/10161/26468

dc.language

eng

dc.publisher

American Physical Society (APS)

dc.relation.ispartof

Physical review letters

dc.relation.isversionof

10.1103/physrevlett.110.113601

dc.subject

Science & Technology

dc.subject

Physical Sciences

dc.subject

Physics, Multidisciplinary

dc.subject

Physics

dc.title

Persistent quantum beats and long-distance entanglement from waveguide-mediated interactions.

dc.type

Journal article

duke.contributor.orcid

Baranger, Harold U|0000-0002-1458-2756

pubs.begin-page

113601

pubs.issue

11

pubs.organisational-group

Duke

pubs.organisational-group

Trinity College of Arts & Sciences

pubs.organisational-group

Physics

pubs.publication-status

Published

pubs.volume

110

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