摘要
Bell's theorem without inequalities is applied for some general Greenberger-Horn-Zeilinger (GHZ) states and W states and a wide range of such states can exhibit all-versus-nothing conflict between local realism and quantum theory. The case of standard GHZ state is contained in our proposal. For some generalized GHZ states more intensive violation on local realism is manifested.
Bell's theorem without inequalities is applied for some general Greenberger-Horn-Zeilinger (GHZ) states and W states and a wide range of such states can exhibit all-versus-nothing conflict between local realism and quantum theory. The case of standard GHZ state is contained in our proposal. For some generalized GHZ states more intensive violation on local realism is manifested.
基金
Supported by the National Natural Science Foundation of China under Grant Nos 10375057 and 10425524, the National Basic Research Programme of China under Grant No 2001CB309300, the ASTAR (No 012-304-105), Chinese Academy of Sciences. and the Marie Curie Action Programme of the European Union.