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The Quantum MatrixHenry Bar's Perilous Struggle for Quantum Coherence$
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Gershon Kurizki and Goren Gordon

Print publication date: 2020

Print ISBN-13: 9780198787464

Published to Oxford Scholarship Online: July 2020

DOI: 10.1093/oso/9780198787464.001.0001

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PRINTED FROM OXFORD SCHOLARSHIP ONLINE (oxford.universitypressscholarship.com). (c) Copyright Oxford University Press, 2021. All Rights Reserved. An individual user may print out a PDF of a single chapter of a monograph in OSO for personal use. date: 20 January 2022

What is Quantum Teleportation?

What is Quantum Teleportation?

(p.242) 14 What is Quantum Teleportation?
The Quantum Matrix

Gershon Kurizki

Goren Gordon

Oxford University Press

Eve (E) entangles herself to Schred (S) before taking off to a conference. There she barely escapes an assault, and calls Henry. Is he too far away to help? Henry (H) resorts to quantum teleportation: a split-second later, H and E, aided by S, have traded places despite being thousands of miles apart! Schematically, the unknown state of H is teleported to E upon measuring the entangled state of E and S and communicating the result to E, who then trades states with H. Since the measured result is communicated at the speed of light, there is no faster-than-light signaling involved. In the distant future, space travel may be partly replaced by large-scale teleportation. Teleportation has intriguing philosophical implications, as it separates the object essence, its quantum information, from its non-essential material substance. The appendix to this chapter presents a quantum teleportation protocol that involves qubits.

Keywords:   quantum teleportation, quantum cryptography, non-local correlations, signaling, space teleportation, Aristotelian form and matter, transmutation

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