Past of a quantum particle and weak measurement
classification
🪐 quant-ph
keywords
quantumweakaccordanceanalysisclaimscontrarydestroysdouble
read the original abstract
We present an analysis of a double Mach-Zehnder 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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