LAUSR

We solve the time‐dependent Schrodinger equation using the coherent states as basis sets for computing high harmonic generation (HHG) in a full‐dimensional single‐electron “realistic” system. We apply the static coherent states (SCS) method to investigate HHG in the hydrogen molecular ion induced by a linearly polarized laser field. We show that SCS gives reasonable agreement compared to the three dimensional unitary split‐operator approach. Next, we study isolated attosecond pulse generation in H2+ . To do so, we employ the well‐known polarization gating technique, which combines two delayed counter‐rotating circular laser pulses, and opens up a gate at the central portion of the superposed pulse. Our results suggest that the SCS method can be used for full‐dimensional quantum simulation of higher dimensional systems such as the hydrogen molecule in the presence of an external laser field.