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23 April 2024 |
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Teleportation in General Probabilistic Theories | | Howard Barnum
; Jonathan Barrett
; Matthew Leifer
; Alexander Wilce
; | | Date: |
23 May 2008 | | Abstract: | In a previous paper, we showed that many important quantum
information-theoretic phenomena, including the no-cloning and no-broadcasting
theorems, are in fact generic in all non-classical probabilistic theories. An
exception is teleportation, which most such theories do not support. In this
paper, we investigate which probabilistic theories, and more particularly,
which composite systems, {em do} support a teleportation protocol. We isolate
a natural class of composite systems that we term {em regular}, and establish
necessary and sufficient conditions for a regular tripartite system to support
a conclusive, or post-selected, teleportation protocol. We also establish a
sufficient condition for deterministic teleportation that yields a large supply
of theories, neither classical nor quantum, that support such a protocol. | | Source: | arXiv, 0805.3553 | | Services: | Forum | Review | PDF | Favorites | |
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