Rotation of H$_{2}^+$ driven by 10fs laser pulse

We have performed full-dimensional calculations for H$_{2}^+$ in ultrashort intense laser pulse including physical processes of dissociation, electronic excitation as well as nuclear vibration and rotation. The post-pulse time evolution of the bound wave function shows revivals due to impulsive alignment. Revival structure is more pronounced than the revivals observed experimentally for D$_2$[1], which makes H$_{2}^+$ more favorable to observe this process. Moreover, alignment depends strongly on the initial vibrational state, making it possible to control the alignment and use it in a pump-probe scheme to study dissociation and ionization. This work also shows that including rotation is important even for very short pulses. \newline [1] K. F. Lee, F. L\'{e}gar\'{e}, D. M. Villeneuve and P. B. Corkum, J. Phys. B, 39, 4081(2006)