Journal of Physics A Mathematical and General
Spectrum of geometric phases in a driven impact oscillator
Indubala I. Satija, Radha Balakrishnan
Abstract
We study the geometric phases underlying the time evolution of the quantum wavefunction of a driven nonlinear oscillator which exhibits periodic, quasiperiodic as well as chaotic dynamics. In the asymptotic limit, irrespective of the classical dynamics, the geometric phases are found to increase linearly with time. Interestingly, the fingerprints of the classical motion are present in the bounded fluctuations that are superimposed on the monotonically growing phases, as well as in the difference between the geometric phases of two neighbouring quantum states.