dorsal/arxiv
View SchemaGeneration of two-photon states with arbitrary degree of entanglement via nonlinear crystal superlattices
| Authors | Alfred B. U'Ren, Reinhard K. Erdmann, Manuel de la Cruz-Gutierrez, Ian A. Walmsley |
|---|---|
| Categories | |
| ArXiv ID | quant-ph/0611018 |
| URL | https://arxiv.org/abs/quant-ph/0611018 |
| DOI | 10.1103/PhysRevLett.97.223602 |
| Journal | Phys Rev Lett 97 223602 (2006) |
Abstract
We demonstrate a general method of engineering the joint quantum state of photon pairs produced in spontaneous parametric downconversion (PDC). 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 a joint spectral amplitude with arbitrary degree of entanglement for the generated pairs. 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.
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"abstract": "We demonstrate a general method of engineering the joint quantum state of\nphoton pairs produced in spontaneous parametric downconversion (PDC). The\nmethod makes use of a superlattice structure of nonlinear and linear materials,\nin conjunction with a broadband pump, to manipulate the group delays of the\nsignal and idler photons relative to the pump pulse, and realizes a joint\nspectral amplitude with arbitrary degree of entanglement for the generated\npairs. This method of group delay engineering has the potential of synthesizing\na broad range of states including factorizable states crucial for quantum\nnetworking and states optimized for Hong-Ou-Mandel interferometry. Experimental\nresults for the latter case are presented, illustrating the principles of this\napproach.",
"arxiv_id": "quant-ph/0611018",
"authors": [
"Alfred B. U\u0027Ren",
"Reinhard K. Erdmann",
"Manuel de la Cruz-Gutierrez",
"Ian A. Walmsley"
],
"categories": [
"quant-ph"
],
"doi": "10.1103/PhysRevLett.97.223602",
"journal_ref": "Phys Rev Lett 97 223602 (2006)",
"title": "Generation of two-photon states with arbitrary degree of entanglement via nonlinear crystal superlattices",
"url": "https://arxiv.org/abs/quant-ph/0611018"
},
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