THE APPLICATION OF BESSEL DISCRETE VARIABLE REPRESENTATION TO ATOMIC HYDROGEN IN INTENSE LASER FIELDS
2007 ◽
Vol 06
(04)
◽
pp. 823-831
Keyword(s):
The Bessel discrete variable representation (DVR) method is tested to describe the interaction of atomic hydrogen with intense laser fields by numerically solving the time-dependent Schrödinger equation. Using the Bessel functions of the first kind, the singular terms, r-2 or r-1 at the origin, in the kinetic energy operators are analytically solved. As an illustration example, the high-order harmonic generation (HOHG) spectra in atomic hydrogen is calculated in length and acceleration forms. From the numerical results, it is concluded that this simple Bessel DVR may be a useful method for describing the interaction of atomic hydrogen with intense laser fields.
2020 ◽
Vol 1412
◽
pp. 082001