Controlled 2D dissipative tunneling in systems of coupled quantum molecules is studied in the quasi-classical (instanton) approximation. It is shown that, with allowance for the electron tunneling trajectory bifurcation, the effect of two-particle wave function blocking in a system of coupled quantum molecules is observed when the radii of quantum dots (making up the quantum molecules) coincide. If the influence of a thermostat medium is neglected, blocking is replaced by a “kink” in the tunneling probability as a function of the asymmetry parameter of quantum molecules.
$^{1}$Department of Theoretical Physics, Faculty of Physics, Moscow State University, Leninskie gory, Moscow, 119992, Russia
$^{2}$Department of Physics and Astronomy, University of Wyoming, Laramie, WY, 82071, USA
$^{3}$Department of Physics, Penza State University, Penza, 440026, Russia
$^{4}$Research Institute of International Medical Center, Japan
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