Quantum chaos in Rydberg atoms: a quantum potential approach

The quantum signature of chaos in Rydberg atoms has been sutdied using a quantum theory of motion and quantum fluid dyanamics. A hydtrogen atom in the electronic ground state (n =1) and in an excited elecronic state (n = 20) behaves differently when placed in an external oscillating eletric field. Temporal evolutions of Shannon entrippy, density correlation, phase space distance function of Bohmian trajectories ans associated Kolmogorov-Sinai entropy for these two cses show marked differences