Symmetry in Nonlinear Mathematical Physics - 2009

Vadzim Piatrou (Joint Institute for Power and Nuclear Research - Sosny, Minsk, Belarus)

Chaotic instantons and enhancement of tunneling in kicked double-well system with time-reversal symmetry

Kicked double-well system is investigated both analytically and numerically. Formula for ground quasienergy splitting is obtained using effective model in the framework of chaotic instanton approach. Results of numerical calculations for the ground quasienergy splitting dependence on both the perturbation strength and frequency are in good agreement with the derived analytical formula. Thus providing a support for the further development of chaotic instanton approach to tunneling in quantum systems with mixed classical dynamics.