Elitzur Vaidman bomb-tester
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In physics, the Elitzur-Vaidman bomb-testing problem is a thought experiment in quantum mechanics, first proposed by Avshalom Elitzur and Lev Vaidman in 1993. An actual bomb-tester was constructed and successfully tested by Anton Zeilinger, Paul Kwiat, Harald Weinfurter, and Thomas Herzog in 1994. It employs a Mach-Zehnder interferometer for ascertaining whether a measurement has taken place. The following example illustrates the bomb-testing problem: Consider a collection of bombs, some of which are duds. The bombs are triggered by a single photon. Unstable bombs will absorb the photon and de...
In physics, the Elitzur-Vaidman bomb-testing problem is a thought experiment in quantum mechanics, first proposed by Avshalom Elitzur and Lev Vaidman in 1993. An actual bomb-tester was constructed and successfully tested by Anton Zeilinger, Paul Kwiat, Harald Weinfurter, and Thomas Herzog in 1994. It employs a Mach-Zehnder interferometer for ascertaining whether a measurement has taken place. The following example illustrates the bomb-testing problem: Consider a collection of bombs, some of which are duds. The bombs are triggered by a single photon. Unstable bombs will absorb the photon and detonate. Dud bombs will not absorb the photon. The problem is how to separate the usable bombs from the duds. A bomb sorter could accumulate dud bombs by attempting to detonate each one. Unfortunately, this process destroys all the unstable bombs.
