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Proceedings Paper

Protecting entanglement from decoherence using weak measurement and quantum measurement reversal
Author(s): Yong-Su Kim; Jong-Chan Lee; Osung Kwon; Yoon-Ho Kim
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Paper Abstract

Decoherence, which causes degradation of entanglement and in some cases entanglement sudden death, is a critical issue faced in quantum information. Protecting entanglement from decoherence, therefore, is essential in practical realization of quantum computing and quantum communication protocols. In this paper, we demonstrate a novel method to protect entanglement from amplitude damping decoherence via weak measurement and quantum measurement reversal. It is shown that even entanglement sudden death can be circumvented.

Paper Details

Date Published: 26 September 2013
PDF: 7 pages
Proc. SPIE 8875, Quantum Communications and Quantum Imaging XI, 88750H (26 September 2013); doi: 10.1117/12.2024442
Show Author Affiliations
Yong-Su Kim, Pohang Univ. of Science and Technology (Korea, Republic of)
Jong-Chan Lee, Pohang Univ. of Science and Technology (Korea, Republic of)
Osung Kwon, Pohang Univ. of Science and Technology (Korea, Republic of)
Yoon-Ho Kim, Pohang Univ. of Science and Technology (Korea, Republic of)


Published in SPIE Proceedings Vol. 8875:
Quantum Communications and Quantum Imaging XI
Ronald E. Meyers; Yanhua Shih; Keith S. Deacon, Editor(s)

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