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Simple performance evaluation of pulsed spontaneous parametric down-conversion sources for quantum communications
- Publication Year :
- 2012
-
Abstract
- Fast and complete characterization of pulsed spontaneous parametric down conversion (SPDC) sources is important for applications in quantum information processing and communications. We propose a simple method to perform this task, which only requires measuring the counts on the two output channels and the coincidences between them, as well as modeling the filter used to reduce the source bandwidth. The proposed method is experimentally tested and used for a complete evaluation of SPDC sources (pair emission probability, total losses, and fidelity) of different bandwidths. This method can find applications in the setting up of SPDC sources and in the continuous verification of the quality of quantum communication links.
- Subjects :
- Quantum Physics
Computer science
Bandwidth (signal processing)
FOS: Physical sciences
Optical Devices
Quantum channel
Equipment Design
01 natural sciences
Atomic and Molecular Physics, and Optics
010309 optics
Equipment Failure Analysis
Refractometry
Spontaneous parametric down-conversion
0103 physical sciences
Electronic engineering
Telecommunications
Computer-Aided Design
Quantum Theory
010306 general physics
Quantum information science
Quantum Physics (quant-ph)
Subjects
Details
- Language :
- English
- Database :
- OpenAIRE
- Accession number :
- edsair.doi.dedup.....5ed490f73de42df6ed471f6bd30bc602