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Weak cloning of an unknown quantum state
Uppsala University, Disciplinary Domain of Science and Technology, Chemistry, Department of Physical Chemistry, Quantum Chemistry. (Quantum information theory)
Uppsala University, Disciplinary Domain of Science and Technology, Chemistry, Department of Physical Chemistry, Quantum Chemistry. (Quantum information theory)
2006 (English)In: Physics Letters A, ISSN 0375-9601, E-ISSN 1873-2429, Vol. 354, no 5-6, 396-398 p.Article in journal (Refereed) Published
Abstract [en]

The impossibility to clone an unknown quantum state is a powerful principle to understand the nature of quantum mechanics, especially within the context of quantum computing and quantum information. This principle has been generalized to quantitative statements as to what extent imperfect cloning is possible. We delineate an aspect of the border between the possible and the impossible concerning quantum cloning, by putting forward an entanglement-assisted scheme for simulating perfect cloning in the context of weak measurements. This phenomenon we call weak cloning of an unknown quantum state.

Place, publisher, year, edition, pages
2006. Vol. 354, no 5-6, 396-398 p.
Keyword [en]
Quantum information, quantum cloning
National Category
Physical Sciences
Research subject
Physics
Identifiers
URN: urn:nbn:se:uu:diva-80784DOI: 10.106/j.physleta.2006.01.075OAI: oai:DiVA.org:uu-80784DiVA: diva2:108698
Available from: 2007-02-06 Created: 2007-02-06 Last updated: 2017-12-14

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Sjöqvist, Erik

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