Relocalization switch in a triple quantum dot molecule in 2D

摘要

A symmetric chain of three quantum dots (i.e., one of the simplest quantum dot molecules) is constructed using a three-parametric non-separable version of an asymptotically separable sextic polynomial potential V (x,y) = (x(2) + y(2))(3) + .... The probability density vertical bar psi(x,y)vertical bar (admitting either the central or off-central dominance) is assumed measured. A dynamical regime is found with an enhanced sensitivity of the central-off-central transition to the parameters. Quantitatively, the possibility of control of such a switch alias "relocalization catastrophe" is illustrated non-numerically.