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Photonic Quantum Computing Entanglement Theory Quantum Correlations

Narrowband Biphotons with Polarization-Frequency Coupled Hyperentanglement

arXiv
Authors: Chi Shu, Xianxin Guo, Peng Chen, M. M. T. Loy, Shengwang Du

Year

2014

Paper ID

46318

Status

Preprint

Abstract Read

~2 min

Abstract Words

97

Citations

N/A

Abstract

We demonstrate the generation of narrowband biphotons with polarization-frequency coupled hy- perentanglement from spontaneous four-wave mixing in cold atoms. The coupling between polariza- tion and frequency is realized through a frequency shifter and linear optics. When the polarization- frequency degrees of freedom are decoupled, it is robust to create polarization and frequency Bell states, confirmed by the polarization quantum-state tomography and the two-photon temporal quan- tum beating. Making use of the polarization-frequency coupling to transfer polarization phase retard to the entangled frequency modes, we produce a frequency Bell state with tunable phase difference between its two bases.

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  • This paper contributes to the Photonic Quantum Computing research area in the Quantum Articles archive.
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  • We demonstrate the generation of narrowband biphotons with polarization-frequency coupled hy- perentanglement from spontaneous four-wave mixing in cold atoms.

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References & Citation Signals

[1] DOI https://doi.org/arXiv:1411.6119 [2] arXiv https://arxiv.org/abs/1411.6119 [3] Publisher https://arxiv.org/abs/1411.6119

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