Nonclassical evolution of a free particle
classification
🪐 quant-ph
keywords
energykineticnegativefreenonclassicalparticlewignerbecome
read the original abstract
A conditional kinetic energy is defined in terms of the Wigner distribution. It is shown that this kinetic energy may become negative for negative Wigner distributions. A free particle wave packet with negative kinetic energy will spread in a nonclassical manner.
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