Information-disturbance tradeoff in estimating a maximally entangled state |
| |
| Authors: | Sacchi Massimiliano F |
| |
| Affiliation: | QUIT Quantum Information Theory Group, Dipartimento di Fisica "A. Volta," via A. Bassi 6, I-27100 Pavia, Italy. |
| |
| Abstract: | We derive the amount of information retrieved by a quantum measurement in estimating an unknown maximally entangled state, along with the pertaining disturbance on the state itself. The optimal tradeoff between information and disturbance is obtained, and a corresponding optimal measurement is provided. |
| |
| Keywords: | |
| 本文献已被 PubMed 等数据库收录！ |
|
