Extrinsic orbital angular momentum of entangled photon-pairs in spontaneous parametric down-conversion

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dc.creatorFeng, Sheng
dc.creatorKumar, Prem
dc.date2008-05-13
dc.date2008-10-07
dc.date.accessioned2026-07-07T10:07:36Z
dc.date.available2026-07-07T10:07:36Z
dc.descriptionStarting from the standard Hamiltonian describing the optical non-linear process of spontaneous parametric down-conversion, we theoretically show that the generated entangled photon-pairs carry non-negligible orbital angular momentum in the degrees of freedom of relative movement in the type-II cases due to spatial symmetry breaking. We also show that the orbital angular momentum carried by photon-pairs in these degrees of freedom escapes detection in the traditional measurement scheme, which demands development of new techniques for further experimental investigations.
dc.description7 pages, 3 figures, Some clarification added in calculations
dc.identifierhttps://arxiv.org/abs/0805.1924
dc.identifierhttp://arxiv.org/abs/0805.1924
dc.identifier.urihttp://salesiana.dossiersoluciones.com/handle/123456789/170697
dc.subjectQuantum Physics
dc.titleExtrinsic orbital angular momentum of entangled photon-pairs in spontaneous parametric down-conversion
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