Molecules: general aspects

Attilio Rigamonti, P. Carretta

Attilio Rigamonti, P. Carretta

Alexander B. Brailovsky, В. Л. Вакс, V. V. Mityugov

Exactly solvable quantum models for an atom or a molecule interacting with a physical environment are considered. The kinetic description of the random walk of an open system is shown to be generally consistent with the phenomenological relaxation equations found use in spectroscopy. Some aspects of the problem of entropy increase are also revised.

P. W. Atkins

Gershon Kurizki, A. Ben‐Reuven

The recent experiment by Grangier, Aspect, and Vigu\'e on interference in the emission from fragments of electronically photodissociated molecules is treated as a special case of cooperative fluorescence (CF) from products of various molecular processes. This general analysis relates time-resolved features of the CF to characteristics (such as orbital symmetry) of the dissociating parent molecule (PM) suggests various PM state preparations (including formation of subradiant states), and discusses the persistence of CF in systems of nonidentical fragments. The diagnostic potentialities of such studies are emphasized.

Qiming Sun