A loophole problem in the production of three-particle entanglement was discussed. Two sufficient conditions distinguishing between N-particle states in which all N particles were entangled to each other were analyzed. The loophole problem remained unsolved on the basis of the conditions reviewed. Modifications of the experimental procedure allowing for a definite confirmation of three-particle entanglement were proposed.
|Original language||English (US)|
|Number of pages||7|
|Journal||Physical Review A. Atomic, Molecular, and Optical Physics|
|State||Published - Jan 2002|