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A semiclassical description of nonlocal effects on barrier transmission

D Galetti and M A Cândido Ribeiro1

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A quantum treatment for nonlocal factorizable potentials is presented in which the Weyl-Wigner quantum phase space description plays an essential role. The nonlocality is treated in an approximated form and allows for a Feynman propagator that can be handled in standard way. The semiclassical limit of the propagator is obtained which permits the calculation of the transmission factor in quantum tunnelling processes. An application in nuclear physics is also discussed.


PACS

03.65.Sq Semiclassical theories and applications

03.65.Xp Tunneling, traversal time, quantum Zeno dynamics

03.65.Vf Phases: geometric; dynamic or topological

03.65.Ud Entanglement and quantum nonlocality (e.g. EPR paradox, Bell's inequalities, GHZ states, etc.)

Subjects

Quantum information and quantum mechanics

Dates

Issue 5 (1992)

Received 5 February 1991



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