Statistics of multiphoton events in spontaneous parametric down-conversion

被引：29
|
作者：
Wasilewski, Wojciech [1 ]
Radzewicz, Czeslaw [1 ]
Frankowski, Robert [2 ]
Banaszek, Konrad [2 ]
机构：
[1] Warsaw Univ, Inst Expt Phys, PL-00681 Warsaw, Poland
[2] Nicholas Copernicus Univ, Inst Phys, PL-87100 Torun, Poland
来源：
PHYSICAL REVIEW A | 2008年 / 78卷 / 03期
关键词：
D O I：
10.1103/PhysRevA.78.033831
中图分类号：
O43 [光学];
学科分类号：
070207 ; 0803 ;
摘要：
We present an experimental characterization of the statistics of multiple photon pairs produced by spontaneous parametric down-conversion realized in a nonlinear medium pumped by high-energy ultrashort pulses from a regenerative amplifier. The photon-number-resolved measurement has been implemented with the help of a fiber loop detector. We introduce an effective theoretical description of the observed statistics based on parameters that can be assigned direct physical interpretation. These parameters, determined for our source from the collected experimental data, characterize the usefulness of down-conversion sources in multiphoton interference schemes that underlie protocols for quantum-information processing and communication.
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页数：8
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