Generation of two-photon States with an arbitrary degree of entanglement via nonlinear crystal superlattices.
We demonstrate a general method of engineering the joint quantum state of photon pairs produced in spontaneous parametric down-conversion. The method makes use of a superlattice structure of nonlinear and linear materials, in conjunction with a broadband pump, to manipulate the group delays of the s...
| Main Authors: | , , , |
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| Format: | Journal article |
| Language: | English |
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2006
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| _version_ | 1826273527065477120 |
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| author | U'Ren, AB Erdmann, R de la Cruz-Gutierrez, M Walmsley, I |
| author_facet | U'Ren, AB Erdmann, R de la Cruz-Gutierrez, M Walmsley, I |
| author_sort | U'Ren, AB |
| collection | OXFORD |
| description | We demonstrate a general method of engineering the joint quantum state of photon pairs produced in spontaneous parametric down-conversion. The method makes use of a superlattice structure of nonlinear and linear materials, in conjunction with a broadband pump, to manipulate the group delays of the signal and idler photons relative to the pump pulse, and realizes photon pairs described by a joint spectral amplitude with arbitrary degree of entanglement. This method of group-delay engineering has the potential of synthesizing a broad range of states including factorizable states crucial for quantum networking and states optimized for Hong-Ou-Mandel interferometry. Experimental results for the latter case are presented, illustrating the principles of this approach. |
| first_indexed | 2024-03-06T22:29:32Z |
| format | Journal article |
| id | oxford-uuid:57d353fb-8035-4245-8a22-27e2a06ab36e |
| institution | University of Oxford |
| language | English |
| last_indexed | 2024-03-06T22:29:32Z |
| publishDate | 2006 |
| record_format | dspace |
| spelling | oxford-uuid:57d353fb-8035-4245-8a22-27e2a06ab36e2022-03-26T16:59:04ZGeneration of two-photon States with an arbitrary degree of entanglement via nonlinear crystal superlattices.Journal articlehttp://purl.org/coar/resource_type/c_dcae04bcuuid:57d353fb-8035-4245-8a22-27e2a06ab36eEnglishSymplectic Elements at Oxford2006U'Ren, ABErdmann, Rde la Cruz-Gutierrez, MWalmsley, IWe demonstrate a general method of engineering the joint quantum state of photon pairs produced in spontaneous parametric down-conversion. The method makes use of a superlattice structure of nonlinear and linear materials, in conjunction with a broadband pump, to manipulate the group delays of the signal and idler photons relative to the pump pulse, and realizes photon pairs described by a joint spectral amplitude with arbitrary degree of entanglement. This method of group-delay engineering has the potential of synthesizing a broad range of states including factorizable states crucial for quantum networking and states optimized for Hong-Ou-Mandel interferometry. Experimental results for the latter case are presented, illustrating the principles of this approach. |
| spellingShingle | U'Ren, AB Erdmann, R de la Cruz-Gutierrez, M Walmsley, I Generation of two-photon States with an arbitrary degree of entanglement via nonlinear crystal superlattices. |
| title | Generation of two-photon States with an arbitrary degree of entanglement via nonlinear crystal superlattices. |
| title_full | Generation of two-photon States with an arbitrary degree of entanglement via nonlinear crystal superlattices. |
| title_fullStr | Generation of two-photon States with an arbitrary degree of entanglement via nonlinear crystal superlattices. |
| title_full_unstemmed | Generation of two-photon States with an arbitrary degree of entanglement via nonlinear crystal superlattices. |
| title_short | Generation of two-photon States with an arbitrary degree of entanglement via nonlinear crystal superlattices. |
| title_sort | generation of two photon states with an arbitrary degree of entanglement via nonlinear crystal superlattices |
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