Exchange interaction radically changes behavior of a quantum particle in a classically forbidden region: simple model

Details Exchange interaction radically changes behavior of a quantum particle in a classically forbidden region: simple model Exchange interaction radically changes behavior of a quantum particle in a classically forbidden region: simple model

2009-09-10

arxiv.org/abs/0909.1868v1

Physics

Quantum Physics

Scientific paper

Exchange interaction strongly influences the long-range behavior of localized electron orbitals and quantum tunneling amplitudes.In the Hartree-Fock approximation the exchange produces a power-law decay instead of the usual exponential decrease at large distances. To show that this effect is real (i.e. not a result of the approximation) we consider a simple model where different effects may be accurately analyzed. Applications include huge enhancement of inner electron ionization by a static electric field or laser field considered in Ref. M. Ya. Amusia, arxiv:0904.4395

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