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arXiv · 1512.01086

Many-body manifestation of interaction-free measurement: the Elitzur-Vaidman bomb

Oded Zilberberg·Alessandro Romito·Yuval Gefen
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Abstract

We consider an implementation of the Elitzur-Vaidman bomb experiment in a DC-biased electronic Mach-Zehnder interferometer with a leakage port on one of its arms playing the role of a "lousy bom". Many-body correlations tend to screen out manifestations of interaction-free measurement. Analyzing the correlations between the current at the interformeter's drains and at the leakage port, we identify the limit where the originally proposed single-particle effect is recovered. Specifically, we find that in the regime of sufficiently diluted injected electron beam and short measurement times, effects of quantum mechanical wave-particle duality emerge in the cross-current correlations.

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Oded Zilberberg, Alessandro Romito, Yuval Gefen. 2015-12-03. Many-body manifestation of interaction-free measurement: the Elitzur-Vaidman bomb. https://doi.org/10.1103/physrevb.93.115411

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