Spectra in the chaotic region: A quantum analysis of the photodissociation of H+3

Abstract
A quantum theory of periodic orbit based resonances is presented and applied to the photodissociation of highly excited H+3. Ab initio stabilization computations are performed to show that periodic orbits are the origin of stable roots producing scars along the orbits in the system’s wave functions. Spacings and widths of the resonances are in satisfactory agreement with the experiment and verify the mechanism proposed by Gomez and Pollak. The validity and utility of the PO based resonance theory to study the dynamics of highly excited systems is demonstrated.