@article { ISI:000078150400012,
	title = {Combined diffusion quantum Monte Carlo-vibrational self-consistent field (DQMC-VSCF) method for excited vibrational states of large polyatomic systems},
	journal = {CHEMICAL PHYSICS LETTERS},
	volume = {299},
	year = {1999},
	month = {JAN 16},
	pages = {437-442},
	abstract = {Diffusion quantum Monte Carlo (DQMC) is a powerful method for calculating the vibrational ground state of large systems but is inapplicable in general for excited states. We propose a general method for excited states, based on combining DQMC with the approximate vibrational self-consistent field (VSCF) approach; the latter is used to obtain the nodes of the excited state wavefunctions. The combined DQMC-VSCF is approximate but found high accuracy in test calculations of Ar-3. DQMC-VSCF is also applied to collective mode excitations of Ar-13. The method provides full spectroscopic assignment for the computed excited states through VSCF. (C) 1999 Elsevier Science B.V. All rights reserved.},
	issn = {0009-2614},
	doi = {10.1016/S0009-2614(98)01296-2},
	author = {Broude, S. and Jung, J. O. and Gerber, R. B.}
}
