Operational symmetries of entangled states
arXiv:1906.07731 · doi:10.1088/1751-8121/ab6fc9
Abstract
Quantum entanglement obscures the notion of local operations; there exist quantum states for which all local actions on one subsystem can be equivalently realized by actions on another. We characterize the states for which this fundamental property of entanglement does and does not hold, including multipartite and mixed states. Our results lead to a method for quantifying entanglement based on operational symmetries and has connections to quantum steering, envariance, the Reeh-Schlieder theorem, and classical entanglement.
arXiv comment8 pages including 2 appendices and 2 figures; comments welcome
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