Twelve-spin "Schrödinger cat"

Jae-Seung Lee, A. K. Khitrin
2005 Applied Physics Letters  
Pseudopure "cat" state, a superposition of quantum states with all spins up and all spins down, is experimentally demonstrated for a system of twelve dipolar-coupled nuclear spins of fully 13C-labeled benzene molecule oriented in a liquid-crystalline matrix.
doi:10.1063/1.2132541 fatcat:oc3cjgkgubd7rgwhkgwpgru2ai