Simultaneous wave and particle knowledge in a neutron interferometer

City College of the City of New York, New York, NY 10031, USA
Physics Letters A (Impact Factor: 1.63). 01/1988; DOI: 10.1016/0375-9601(88)90114-4

ABSTRACT We give a measure of particle knowledge in a neutron interferometer that reflects one's ability to predict in which beam a neutron is located. We can measure wave knowledge by contrast of the interference pattern. Then one's simultaneous knowledge of both is determined by a single parameter (not an uncertainty relation), running from full particle to full wave knowledge. We extend the discussion to partially coherent beams. Our measure of information is much simpler than the conventional one.

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    International Journal of Quantum Information 11/2011; 08(03). · 0.92 Impact Factor