Preparation of four-photon polarization-entangled decoherence-free states employing weak cross-Kerr nonlinearities.
| Title: | Preparation of four-photon polarization-entangled decoherence-free states employing weak cross-Kerr nonlinearities. |
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| Authors: | Xiao-Ming Xiu1 xiuxiaomingdl@126.com, Qing-Yang Li1, Yan-Fang Lin1, Hai-Kuan Dong1, Li Dong1 donglixm@163.com, Ya-Jun Gao1 |
| Source: | Physical Review A: Atomic, Molecular & Optical Physics. Oct2016, Vol. 94 Issue 4, p1-1. 1p. |
| Subject Terms: | *SINGLE-photon emission computed tomography, *QUANTUM entanglement, *SUBSPACES (Mathematics) |
| Abstract: | With the assistance of weak cross-Kerr nonlinearities, we present a preparation scheme of four-photon polarization-entangled decoherence-free states, which can be used to construct the minimal optical decoherence-free subspaces where a logical qubit is fully protected against collective decoherence. To complete the preparation task, one spatial entanglement process, two polarization entanglement processes, and one detecting process are applied. The fulfillments of the above processes are contributed by a cross-Kerr nonlinear interaction between the signal photons and a coherent state via Kerr media. Exploiting the available single-photon resource and simple linear optics elements, this scheme is feasible and desirable to be extended to the construction of multiphoton decoherence-free states against the collective decoherence. [ABSTRACT FROM AUTHOR] |
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| Items | – Name: Title Label: Title Group: Ti Data: Preparation of four-photon polarization-entangled decoherence-free states employing weak cross-Kerr nonlinearities. – Name: Author Label: Authors Group: Au Data: <searchLink fieldCode="AR" term="%22Xiao-Ming+Xiu%22">Xiao-Ming Xiu</searchLink><relatesTo>1</relatesTo><i> xiuxiaomingdl@126.com</i><br /><searchLink fieldCode="AR" term="%22Qing-Yang+Li%22">Qing-Yang Li</searchLink><relatesTo>1</relatesTo><br /><searchLink fieldCode="AR" term="%22Yan-Fang+Lin%22">Yan-Fang Lin</searchLink><relatesTo>1</relatesTo><br /><searchLink fieldCode="AR" term="%22Hai-Kuan+Dong%22">Hai-Kuan Dong</searchLink><relatesTo>1</relatesTo><br /><searchLink fieldCode="AR" term="%22Li+Dong%22">Li Dong</searchLink><relatesTo>1</relatesTo><i> donglixm@163.com</i><br /><searchLink fieldCode="AR" term="%22Ya-Jun+Gao%22">Ya-Jun Gao</searchLink><relatesTo>1</relatesTo> – Name: TitleSource Label: Source Group: Src Data: <searchLink fieldCode="JN" term="%22Physical+Review+A%3A+Atomic%2C+Molecular+%26+Optical+Physics%22">Physical Review A: Atomic, Molecular & Optical Physics</searchLink>. Oct2016, Vol. 94 Issue 4, p1-1. 1p. – Name: Subject Label: Subject Terms Group: Su Data: *<searchLink fieldCode="DE" term="%22SINGLE-photon+emission+computed+tomography%22">SINGLE-photon emission computed tomography</searchLink><br />*<searchLink fieldCode="DE" term="%22QUANTUM+entanglement%22">QUANTUM entanglement</searchLink><br />*<searchLink fieldCode="DE" term="%22SUBSPACES+%28Mathematics%29%22">SUBSPACES (Mathematics)</searchLink> – Name: Abstract Label: Abstract Group: Ab Data: With the assistance of weak cross-Kerr nonlinearities, we present a preparation scheme of four-photon polarization-entangled decoherence-free states, which can be used to construct the minimal optical decoherence-free subspaces where a logical qubit is fully protected against collective decoherence. To complete the preparation task, one spatial entanglement process, two polarization entanglement processes, and one detecting process are applied. The fulfillments of the above processes are contributed by a cross-Kerr nonlinear interaction between the signal photons and a coherent state via Kerr media. Exploiting the available single-photon resource and simple linear optics elements, this scheme is feasible and desirable to be extended to the construction of multiphoton decoherence-free states against the collective decoherence. [ABSTRACT FROM AUTHOR] – Name: AbstractSuppliedCopyright Label: Group: Ab Data: <i>Copyright of Physical Review A: Atomic, Molecular & Optical Physics is the property of American Physical Society and its content may not be copied or emailed to multiple sites or posted to a listserv without the copyright holder's express written permission. However, users may print, download, or email articles for individual use. This abstract may be abridged. No warranty is given about the accuracy of the copy. Users should refer to the original published version of the material for the full abstract.</i> (Copyright applies to all Abstracts.) |
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| RecordInfo | BibRecord: BibEntity: Identifiers: – Type: doi Value: 10.1103/PhysRevA.94.042321 Languages: – Code: eng Text: English PhysicalDescription: Pagination: PageCount: 1 StartPage: 1 Subjects: – SubjectFull: SINGLE-photon emission computed tomography Type: general – SubjectFull: QUANTUM entanglement Type: general – SubjectFull: SUBSPACES (Mathematics) Type: general Titles: – TitleFull: Preparation of four-photon polarization-entangled decoherence-free states employing weak cross-Kerr nonlinearities. Type: main BibRelationships: HasContributorRelationships: – PersonEntity: Name: NameFull: Xiao-Ming Xiu – PersonEntity: Name: NameFull: Qing-Yang Li – PersonEntity: Name: NameFull: Yan-Fang Lin – PersonEntity: Name: NameFull: Hai-Kuan Dong – PersonEntity: Name: NameFull: Li Dong – PersonEntity: Name: NameFull: Ya-Jun Gao IsPartOfRelationships: – BibEntity: Dates: – D: 01 M: 10 Text: Oct2016 Type: published Y: 2016 Identifiers: – Type: issn-print Value: 10502947 Numbering: – Type: volume Value: 94 – Type: issue Value: 4 Titles: – TitleFull: Physical Review A: Atomic, Molecular & Optical Physics Type: main |
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