Past of a quantum particle and weak measurement [PDF]
Zheng-Hong Li, M. Al-Amri, M. Suhail ZubairyWe 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.View original: http://arxiv.org/abs/1306.3048
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