Generalised Heisenberg relations for quantum statistical estimation

被引：15

作者：

Brody, DC

Hughston, LP

机构：

[1] Univ Cambridge, Dept Appl Math & Theoret Phys, Cambridge CB3 9EW, England

[2] Merrill Lynch Int, London EC2Y 9LY, England

[3] Univ London Kings Coll, London WC2R 2LS, England

来源：

PHYSICS LETTERS A | 1997年 / 236卷 / 04期

关键词：

D O I：

10.1016/S0375-9601(97)00788-3

中图分类号：

O4 [物理学];

学科分类号：

0702 ;

摘要：

A geometric framework for quantum statistical estimation is used to establish a series of corrections to the Heisenberg uncertainty relations for canonically conjugate variables. These results apply when the true state of the system belongs to a one-parameter family of unitarily related states, and we are required to estimate the value of the parameter. (C) 1997 Elsevier Science B.V.

引用

页码：257 / 262

页数：6

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