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New bosonic excitation operators in many‐electron wave functions
Author(s) -
Ohta Katsuhisa
Publication year - 1998
Publication title -
international journal of quantum chemistry
Language(s) - English
Resource type - Journals
SCImago Journal Rank - 0.484
H-Index - 105
eISSN - 1097-461X
pISSN - 0020-7608
DOI - 10.1002/(sici)1097-461x(1998)67:2<71::aid-qua1>3.0.co;2-v
Subject(s) - wave function , boson , physics , electron , excitation , quantum mechanics , coherent states , variational principle , equations of motion , mathematical physics , quantum
Abstract New excitation operators which have perfect bosonic symmetry are constructed for many‐electron wave functions by regarding the system of many electrons as that of many species of bosons. Any electronic configurations can be generated by the new bosonic “void” operators. A coherent state is constructed with the bosonic operators and is adopted as a trial function for the time‐dependent variational principle. The equation of motion which has exactly the same form as Hamilton's equation in classical mechanics is obtained with the complex variational parameters, the number of which is equal to the number of electrons. © 1998 John Wiley & Sons, Inc. Int J Quant Chem 67: 71–75, 1998