L.D. Thomas, R.S. Oberoi, et al.
Physical Review A
A multichannel variational method is proposed that allows use of basis functions extending to infinity, not truncated at a finite boundary, although the method uses R-matrix formalism. Exact asymptotic wavefunctions are used as a continuum basis. Two-channel model calculations demonstrate the validity of the method.
L.D. Thomas, R.S. Oberoi, et al.
Physical Review A
J.D. Lyons, R.K. Nesbet
Physical Review Letters
R.K. Nesbet
Physical Review A
R.K. Nesbet
Physical Review A