Journal
PHYSICAL REVIEW LETTERS
Volume 113, Issue 17, Pages -Publisher
AMER PHYSICAL SOC
DOI: 10.1103/PhysRevLett.113.170501
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Funding
- National Basic Research Program of China [2010CB923102]
- National Natural Science Foundation of China Project for Excellent Research Team [61121064]
- National Natural Science Foundation of China [11274212, 11174189]
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We report on the generation of continuous-variable hyperentanglement of polarization and orbital angular momentum with a type II optical parametric oscillator. By compensating for the astigmatism between spatial modes, we produce an entangled pair of Hermite-Gauss beams. From correlations measurements, we verify the existence of continuous-variable hyperentanglement by the general entanglement criterion as well as by the continuous-variable version of the Peres-Horodecki criterion visualized on an equivalent Poincare sphere.
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