Optimal purification of single qubits
Optimal purification of single qubits
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DOI:
10.1103/physrevlett.82.4344
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发表时间:
1999-05-24
影响因子:
8.6
通讯作者:
Macchiavello, C
中科院分区:
文献类型:
--
作者:
Cirac, JI;Ekert, AK;Macchiavello, C
We introduce a new decomposition of the multiqubit states of the form rho(xN) and employ it to construct the optimal single qubit purification procedure. The same decomposition allows us to study optimal quantum cloning and state estimation of mixed states. [S0031-9007(99)09247-9].