No-cloning theorem in thermofield dynamics

Details No-cloning theorem in thermofield dynamics No-cloning theorem in thermofield dynamics

2011-04-20

arxiv.org/abs/1104.3926v5

International Journal of Quantum Information, 10 (2012) 1230001

Physics

Quantum Physics

16 pages, 3 figures

Scientific paper

10.1142/S021974991230001X

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.

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