<< This cat is big and smart. It doesn’t stay in one box because the quantum state is shared between the two cavities and cannot be described separately (..) One can also take an alternative view, where we have two small and simple Schrodinger’s cats, one in each box, that are entangled >> Chen Wang.
Jim Shelton. Doubling down on Schrodinger’s cat. May 26, 2016.
Chen Wang , Yvonne Y. Gao, et al. A Schrodinger cat living in two boxes. Science, 2016; 352 (6289): 1087 DOI: 10.1126/science.aaf2941