Generation of hyper-entanglement in polarization/energy-time and discrete-frequency/energy-time in optical fibers

Scientific Reports
Shuai DongYidong Huang

Abstract

In this paper, a generation scheme for telecom band hyper-entanglement is proposed and demonstrated based on the vector spontaneous four wave mixing (SFWM) processes in optical fibers. Two kinds of two-photon states are generated, one is hyper-entangled in the degree of freedoms (DOFs) of energy-time and polarization, the other is hyper-entangled in DOFs of energy-time and discrete-frequency. Experiments of Franson-type interference, two-photon interference under non-orthogonal polarization bases and spatial quantum beating are realized to demonstrate the entanglement in energy-time, polarization and frequency, respectively. This scheme provides a simple way to realize telecom band hyper-entanglement, which has potential for large geographic-scale applications of quantum communication and quantum information over optical fibers.

References

Jul 4, 1988·Physical Review Letters·Z Y Ou, L Mandel
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Feb 21, 2006·Physical Review Letters·Julio T BarreiroPaul G Kwiat
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Feb 12, 2014·Optics Express·Shuai DongJiangde Peng

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Citations

Oct 19, 2017·Optics Express·Changjia ChenLi Qian

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