Optimal discrimination of quantum operations
Journal Article
·
· Physical Review. A
- QUIT, Unita INFM, and Dipartimento di Fisica 'A. Volta', Universita di Pavia, I-27100 Pavia (Italy)
We address the problem of discriminating with minimal error probability two given quantum operations. We show that the use of entangled input states generally improves the discrimination. For Pauli channels we provide a complete comparison of the optimal strategies where either entangled or unentangled input states are used.
- OSTI ID:
- 20717905
- Journal Information:
- Physical Review. A, Journal Name: Physical Review. A Journal Issue: 6 Vol. 71; ISSN 1050-2947; ISSN PLRAAN
- Country of Publication:
- United States
- Language:
- English
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