Frequency-up conversion and quantum swap gate in an optical cavity with atomic cloud

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dc.creatorLin, Gong-Wei
dc.creatorZou, Xu-Bo
dc.creatorYe, Ming-Yong
dc.creatorLin, Xiu-Min
dc.creatorGuo, Guang-Can
dc.date2008-01-05
dc.date.accessioned2026-07-07T09:49:42Z
dc.date.available2026-07-07T09:49:42Z
dc.descriptionA scheme is presented for realizing frequency-up conversion and a two-qubit quantum swap gate for intracavity fields. In the scheme, a V-type atomic ensemble prepared in their ground states collectively mediates the interaction between the two cavity modes. Under certain conditions, the cavity-field degree of freedom is decoupled from the atomic degrees of freedom, and the effective coupling strength between the two cavity modes scales up with $\sqrt{N}$ ($N$ is the number of atoms). The numerical simulation shows that the quantum swap gate still has a high fidelity under the influence of the atomic spontaneous emission and the decay of the cavity modes.
dc.description5 pages,3 figures
dc.identifierhttps://arxiv.org/abs/0801.0789
dc.identifierhttp://arxiv.org/abs/0801.0789
dc.identifierPhys. Rev. A 77, 064301 (2008)
dc.identifier.urihttp://salesiana.dossiersoluciones.com/handle/123456789/164687
dc.subjectQuantum Physics
dc.titleFrequency-up conversion and quantum swap gate in an optical cavity with atomic cloud
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