Multi-Well Potentials in Quantum Mechanics and Stochastic Processes

Details Multi-Well Potentials in Quantum Mechanics and Stochastic Processes Multi-Well Potentials in Quantum Mechanics and Stochastic Processes

2010-06-30

arxiv.org/abs/1006.5917v2

SIGMA 6:098,2010

Physics

Condensed Matter

Statistical Mechanics

Scientific paper

10.3842/SIGMA.2010.098

Using the formalism of extended N=4 supersymmetric quantum mechanics we consider the procedure of the construction of multi-well potentials. We demonstrate the form-invariance of Hamiltonians entering the supermultiplet, using the presented relation for integrals, which contain fundamental solutions. The possibility of partial N=4 supersymmetry breaking is determined. We also obtain exact forms of multi-well potentials, both symmetric and asymmetric, using the Hamiltonian of harmonic oscillator as initial. The modification of the shape of potentials due to variation of parameters is also discussed, as well as application of the obtained results to the study of tunneling processes. We consider the case of exact, as well as partially broken N=4 supersymmetry. The distinctive feature of obtained probability densities and potentials is a parametric freedom, which allows to substantially modify their shape. We obtain the expressions for probability densities under the generalization of the Ornstein-Uhlenbeck process.

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