Publication Date:
2013-08-31
Description:
Interference experiments with connected parametric down-converters have demonstrated that the possibility, in principle, of identifying the photon path through the interferometer is sufficient to wipe out all interference, irrespective of whether the identification is actually made. The distinguishability of the photon path can be controlled by a time-dependent shutter, which leaves the choice whether the photon behaves as a wave or as a particle in the experimenter's hands. By contrast, in some more recent experiments involving the addition of a low-Q cavity, each idler photon makes the choice whether the associated signal photon behaves like a wave and exhibits interference, or like a particle.
Keywords:
NUCLEAR AND HIGH-ENERGY PHYSICS
Type:
NASA. Goddard Space Flight Center, Third International Workshop on Squeezed States and Uncertainty Relations; p 123-128
Format:
application/pdf
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