Date: Fall 2011
Is there a minimum distance between two photons? If so, what is the spacing?
Particles can be divided into two sets called fermions and
bosons. Two identical fermions cannot be in the same place at the
same time. Any number of bosons can overlap. The photon is a
boson, so there is no minimum distance between them. For two
photons to travel together, they would have to be emitted at just
the right times and in exactly the same direction. This can happen,
but not all the time.
Dr. Ken Mellendorf
Illinois Central College
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Update: June 2012