No-cloning theorem in thermofield dynamics
arXiv:1104.3926 · doi:10.1142/S021974991230001X
Abstract
We discuss the relation between the no-cloning theorem from quantum information and the doubling procedure used in the formalism of thermofield dynamics (TFD). We also discuss how to apply the no-cloning theorem in the context of thermofield states defined in TFD. Consequences associated to mixed states, von Neumann entropy and thermofield vacuum are also addressed.
16 pages, 3 figures
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