Friday, June 14, 2013

1306.3048 (Zheng-Hong Li et al.)

Past of a quantum particle and weak measurement    [PDF]

Zheng-Hong Li, M. Al-Amri, M. Suhail Zubairy
We present an analysis of a double Mach-Zhender interferometer in which an ensemble of identical pre- and postselected particles leave a weak trace. A knowledge of the weak value partially destroys the quantum interference. The results, contrary to some recent claims, are in accordance with the usual quantum mechanical expectations.
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