Tunnel Ionization - References and Background

References and Background

1. The tunneling ionization rate for the hydrogen atom in an electrostatic field using the semi-classical approximation (L.D. Landau and E.M. Lifshitz, Quantum Mechanics (Pergamon, New York, 1965), 2nd ed., pg 276.)
2. Tunnel Ionization probability for H-like atoms considering potential well was initially proposed by Keldysh (Sov. Phys. JETP, 1965).
3. Theory extended to ionization from excited electronic states by Peremolov et al. (Sov. Phys. JETP, 1966).
4. Modified for complex atoms and ions by Ammosov et al. (ADK, JETP, 1986).
5. Tunneling Ionization of atoms was first observed experimentally by Chin et al. (J. Phys. B, 1985).
6. Extensive comparison of ADK predictions have been done by many workers like Augst et al. (J. Opt. Soc. Am, 1991) etc.
7. Theoretical and Experimental works regarding ionization related to advanced particle accelerators, fast-ignitor scheme of ICF are noteworthy.

The theoretical work of ADK is so far the most valid and highly appreciated theory.