Evolution of wave-packet spread under sequential scattering of particles of unequal mass.
Under assumptions on initial wave-packet spreads and particle interactions, different mass particles scattering off one another will have the product sigma(2)(i)m(i) converge to a common value, where sigma(i) is the spread and m(i) is the mass of the ith particle. When this relation is satisfied, kinematic entanglement vanishes.
Schulman
L S
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Physics Department, Clarkson University, Potsdam, New York 13699-5820, USA. schulman@clarkson.edu