Distinguishing n Hamiltonians on Cn by a single measurement -: art. no. 022303

被引：2
|
作者：
Janzing, D [1 ]
Beth, T [1 ]
机构：
[1] Inst Algorithmen & Kognit Syst, D-76131 Karlsruhe, Germany
来源：
PHYSICAL REVIEW A | 2002年 / 65卷 / 02期
关键词：
D O I：
10.1103/PhysRevA.65.022303
中图分类号：
O43 [光学];
学科分类号：
070207 ; 0803 ;
摘要：
If an experimentalist wants to decide which one of n possible Hamiltonians acting on an n-dimensional Hilbert space is present, he can conjugate the time evolution by an appropriate sequence of known unitary transformations in such a way that the different Hamiltonians result in mutual orthogonal final states. We present a general scheme providing an approximation for such a sequence.
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页码：1 / 4
页数：4
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