title: Spectroscopic detectability of the molecular Aharonov-Bohm effect.
abstract: It is theoretically shown that the emission spectra from an excited Jahn-Teller state in which the ions undergo a forced periodic trajectory have an M-shaped form, directly due to the sign change by the Berry-phase factor. The presence of a weak spectral sideline is noted and the effects of a nonlinear vibronic coupling are calculated. Experimental verifications of the results, e.g., on R'-centers in LiF, are proposed. The dip in the M-shaped emission line is a novel, and perhaps unique, spectroscopic manifestation of the "molecular Aharonov-Bohm effect."
authors.affiliation: Soreq NRC, Yavne 81800, Israel and Ariel University Center, Ariel 40700, Israel.
authors.forename: R
authors.initials: R
authors.lastname: Englman