Using angular-momentum-projected mean-field theory, we develop 1/N expansion solutions for the vibron model of diatomic molecules. Analytic expressions of spectroscopic accuracy are derived for rotationalvibrational energy levels and for the intensities of transitions among them. The results are used in a systematic study of diatomic molecules in the vibron model with a view to finding appropri...

We present a method to calculate Lyapunov exponents of rigid diatomic molecules in three dimensions ( 12N -dimensional phase space). The spectra of Lyapunov exponents are obtained for 32 rigid diatomic molecules interacting through the Weeks-Chandler-Anderson potential for various bond length and densities, and compared with those of Shin [Phys. Rev. E 64, 041106 (2001)]. Our algorithm is easy ...

Attosecond science has extended experimental studies of atomic and molecular photoionization into a new dimension. In atoms, a time delay between absorption of an attosecond XUV pulse and subsequent emission of a photoelectron has been measured [1, 2, 3]. In molecules, electron localization and attosecond control have been demonstrated in pump-probe photoionization experiments [4, 5]. Experimen...

Photon induced dissociation (PID) of molecules due to action of low intensity IR radiation is the subject of several experimental investigations [1–12]. The interest in this field arose, as information of molecular dissociation by IR photons is important not only for the development of quantum chemistry of organic molecules and for the theory of laser beam interactions with large molecules, but...