Environment-assisted invariance, entanglement, and probabilities in quantum physics.
I introduce environment-assisted invariance or envariance-a symmetry exhibited by correlated quantum systems and related to causality-and describe how it can be used to understand the nature of ignorance and, hence, the origin and interpretation of Born's rule for quantum probabilities.
Zurek
Wojciech Hubert
WH
Theory Division, MS B210, LANL, Los Alamos, New Mexico 87545, USA.