Quantum Invariants: Topographical Map of Quantized Actions
Niraj Srivastava, Gerhard H. Muller · Journal of Media Literacy Education · 1990
For Hamiltonian systems with two degrees of freedom, quantum invariants as constructed via time averages of dynamical variables in energy eigenstates provide a convenient representation of quantum nonintegrability effects in the form of a topographical map of quantized actions.