HOW THE RESULT OF A MEASUREMENT OF A COMPONENT OF THE SPIN OF A SPIN-1/2 PARTICLE CAN TURN OUT TO BE 100
HOW THE RESULT OF A MEASUREMENT OF A COMPONENT OF THE SPIN OF A SPIN-1/2 PARTICLE CAN TURN OUT TO BE 100
复制标题
DOI：
10.1103/physrevlett.60.1351
复制
发表时间：
1988-04-04
影响因子：
8.6
通讯作者：
VAIDMAN, L
中科院分区：
文献类型：
--
作者：
AHARONOV, Y;ALBERT, DZ;VAIDMAN, L
我们已经发现，对预选和后选的量子系统系综，通常的测量程序给出了不寻常的结果。在弱测量的某些自然条件下，它的结果一致地定义了量子变量的一种新的值，我们称之为弱值。本文描述了一种测量预选和后选自旋-（1/2）粒子系综自旋分量弱值的方法。
We have found that the usual measuring procedure for preselected and postselected ensembles of quantum systems gives unusual results. Under some natural conditions of weakness of the measurement, its result consistently defines a new kind of value for a quantum variable, which we call the weak value. A description of the measurement of the weak value of a component of a spin for an ensemble of preselected and postselected spin-(1/2 particles is presented.