Quantum Estimation Theory

Quantum Estimation Theory
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量子估计理论

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发表时间:
2014
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通讯作者:
Yu Watanabe
Yu Watanabe
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作者:
Yu Watanabe

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假设我们有一些身份证。量子态。通过对每个状态执行测量,可以获得关于系统的哪些信息和多少信息内容?量子估计理论为这个问题提供了答案。在本章中,我们回顾了量子估计理论[1,2,3],并引入了量子Fisher信息,它给出了经典Fisher信息的上界。
Suppose that we have a number of i.i.d. quantum states. By performing a measurement on each state, what information and how much information content about the system is obtained? Quantum estimation theory provides an answer to the question. In this chapter, we review quantum estimation theory [1, 2, 3] and introduce quantum Fisher information, which gives the upper bound of the classical Fisher information.