Information entropy and level-spacing distribution based signatures of quantum chaos in electron doped 2D single carrier quantum dots

Information entropy and level-spacing distribution in single carrier two-dimensional quantum dots are analyzed as functions of the location of a repulsive impurity centre and the strength of its interaction with the carrier electron. Quantum adiabatic switching is used to monitor the transition to quantum chaos with two different choices of the unperturbed hamiltonian.

Electron doping in single carrier quantum dots with parabolic confinement and transverse magnetic field brings about quantum chaos.