V. Ch. Zhukovskii, O. N. Gorshkov, V. D. Krevchik, M. B. Semenov, Yu. G. Smirnov, E. V. Chuprunov, V. A. Rudin, N. Yu. Skibitskaya, P. V. Krevchik, D. O. Filatov, D. A. Antonov, M. A. Lapshina, M. E. Shenina, Ya. Kendji, “Features of two-dimensional tunnel bifurcations under conditions of an external electric field”, University proceedings. Volga region. Physical and mathematical sciences, 2009, Issue 2,Pages <nobr>123

Physics

Features of two-dimensional tunnel bifurcations under conditions of an external electric field

V. Ch. Zhukovskii^a, O. N. Gorshkov^b, V. D. Krevchik^c, M. B. Semenov^c, Yu. G. Smirnov^c, E. V. Chuprunov^d, V. A. Rudin^c, N. Yu. Skibitskaya^c, P. V. Krevchik^c, D. O. Filatov^b, D. A. Antonov^b, M. A. Lapshina^b, M. E. Shenina^b, Ya. Kendji^e

^a Moscow State University named after M. V. Lomonosov, Moscow
^b Physics and Engineering Research Institute attached to Nizhniy Novgorod State University named after N. I. Lobachevskiy, Nizhniy Novgorod
^c Penza State University, Penza
^d Nizhny Novgorod State University named after N. I. Lobachevsky, Nizhny Novgorod
^e Research Institute at the International Medical Center, Tokyo, Japan

Abstract: Controllability problem for two-dimensional dissipative tunneling in system of «the AFM/STM cantilever tip - quantum dot», simulated by 2D oscillator potential in a heat bath and external electric field, has been investigated. The 2D tunnel transfer probability dependence on external electric field has been calculated in frames of instanton approximation. Obtained results are qualitatively corresponded to separate experimental VACs for system «platinized cantilever tip - golden quantum dot», which have been obtained in N. Novgorod State University. Earlier predicted 2D tunnel bifurcations with dissipation for case of parallel tunneling interacting particles are found as experimentally observed and stable ones.

Keywords: dissipative tunneling, 2d-bifurcations, quantum dots.

UDC: 539.2:541.117