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Title: Experimental entanglement concentration and universal Bell-state synthesizer

Journal Article · · Physical Review. A
;  [1]; ; ;  [2]
  1. Center for Engineering Science Advanced Research, Computer Science and Mathematics Division, Oak Ridge National Laboratory, Oak Ridge, Tennessee 37831 (United States)
  2. Department of Physics, University of Maryland, Baltimore County, Baltimore, Maryland 21250 (United States)

We report a Bell-state synthesizer in which an interferometric entanglement concentration scheme is used. An initially mixed polarization state from type-II spontaneous parametric down-conversion becomes entangled after the interferometric entanglement concentration. This Bell-state synthesizer is universal in the sense that the output polarization state is not affected by spectral filtering, crystal thickness, and, most importantly, the choice of pump source. It is also robust against environmental disturbance and a more general state, partially mixed-partially entangled state, can be readily generated as well.

OSTI ID:
20634054
Journal Information:
Physical Review. A, Vol. 67, Issue 1; Other Information: DOI: 10.1103/PhysRevA.67.010301; (c) 2003 The American Physical Society; Country of input: International Atomic Energy Agency (IAEA); ISSN 1050-2947
Country of Publication:
United States
Language:
English