Abstract
Basing on positive maps separability criterion we propose the experimentally viable, direct detection of quantum entanglement. It is efficient and does not require any a priori knowledge about the state. For two qubits it provides a sharp (i.e., “if and only if”) separability test and estimation of amount of entanglement. We view this method as a new form of quantum computation, namely, as a decision problem with quantum data structure.
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- Category:
- Articles
- Type:
- artykuł w czasopiśmie z listy filadelfijskiej
- Published in:
-
PHYSICAL REVIEW LETTERS
no. 89,
edition 12,
pages 1 - 4,
ISSN: 0031-9007 - Language:
- English
- Publication year:
- 2002
- Bibliographic description:
- Horodecki P., Ekert A.: Direct detection of quantum entanglement// PHYSICAL REVIEW LETTERS. -Vol. 89., iss. 12 (2002), s.1-4
- DOI:
- Digital Object Identifier (open in new tab) 10.1103/physrevlett.89.127902
- Verified by:
- Gdańsk University of Technology
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