Connection between long-range correlations in quantum spectra and classical periodic orbits
Dieter Wintgen
Phys. Rev. Lett. 58, 1589 (1987) - Published 20 April, 1987
Phase change during a cyclic quantum evolution
Y. Aharonov and J. Anandan
Phys. Rev. Lett. 58, 1593 (1987) - Published 20 April, 1987