期刊
EUROPEAN PHYSICAL JOURNAL D
卷 66, 期 9, 页码 -出版社
SPRINGER
DOI: 10.1140/epjd/e2012-30099-y
关键词
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资金
- HIDEAS project of 7th Framework Programme of European Commission [FP7-ICT-221906]
- Belarus Foundation for Fundamental Research [F10R-123]
We calculate the Schmidt number for a two-dimensional model of the nonfactorable spatiotemporal wave-function of biphotons produced in type-I spontaneous parametric down-conversion with degenerate and collinear phase-matching taking into consideration a major part of the broad spectral and angular bandwidth of the down-converted light. We deduce an analytical expression for the Schmidt number as a function of the filter bandwidth in the limit of spectrally narrow pump and consider a possibility of tailoring a Gaussian model for the description of this kind of entanglement.
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