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Causality in different formalisms of quantum teleportation treatment

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Conditional time travel through quantum teleportation shows that for a particular case, information is able to travel backward in time. To investigate this phenomenon, we implemented causal analysis, which is a formal method to distinguish between cause and effect without invoking time relations. We considered two approaches to examine teleportation: the tensor product and time-reversal formalisms. The causal analysis reveals the existence of an own time flow for a teleporting qubit and shows that even for a general case, the information regarding a random future is able to travel backward in time.
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Keywords: Causal Analysis; Conditional Time Travel; Quantum Causality; Quantum Teleportation; Time-Reversal Formalism

Document Type: Research Article

Publication date: 15 December 2014

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  • Physics Essays has been established as an international journal dedicated to theoretical and experimental aspects of fundamental problems in Physics and, generally, to the advancement of basic knowledge of Physics. The Journal's mandate is to publish rigorous and methodological examinations of past, current, and advanced concepts, methods and results in physics research. Physics Essays dedicates itself to the publication of stimulating exploratory, and original papers in a variety of physics disciplines, such as spectroscopy, quantum mechanics, particle physics, electromagnetic theory, astrophysics, space physics, mathematical methods in physics, plasma physics, philosophical aspects of physics, chemical physics, and relativity.
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