Phys. Rev. A 67, 042107 (2003) [3 pages]How one shutter can close N slitsReceived 29 October 2002; published 22 April 2003 It is shown that a quantum shutter, preselected and postselected in particular quantum states, can close simultaneously arbitrary number of slits preventing the passage of a single photon in an arbitrary state. A set of K preselected and postselected shutters can close the slits preventing the passage of K or less photons. This result indicates that the surprising properties of preselected and postselected quantum systems are even more robust than previously expected. © 2003 The American Physical Society URL:
http://link.aps.org/doi/10.1103/PhysRevA.67.042107
DOI:
10.1103/PhysRevA.67.042107
PACS:
03.65.Ta
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