Nonlocal cancellation of dispersion in Franson interferometry
Author(s)
Zhong, Tian; Wong, Franco N. C.
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Dispersion and its cancellation in entanglement-based nonlocal quantum measurements are of fundamental and practical interests. We report a demonstration of cancellation of femtosecond-level dispersion by inverting the sign of the differential dispersion between the long and short paths in only one arm of a fiber-based Franson interferometer. We restore the otherwise limited quantum visibility to an unprecedented 99.6%, and put time-energy entanglement at the same level of quality as polarization entanglement for use in quantum information processing applications.
Date issued
2013-08Department
Massachusetts Institute of Technology. Research Laboratory of ElectronicsJournal
Physical Review A
Publisher
American Physical Society
Citation
Zhong, Tian, and Franco N. C. Wong. “Nonlocal cancellation of dispersion in Franson interferometry.” Physical Review A 88, no. 2 (August 2013). © 2013 American Physical Society
Version: Final published version
ISSN
1050-2947
1094-1622