I Mendas and P Milutinovic
Inst. of Phys., Belgrade, Yugoslavia
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I Mendas and P Milutinovic 1990 J. Phys. A: Math. Gen. 23 537
The generalization of the Baker-Hausdorff lemma and its anticommutator analogue is formulated. Additionally, the anticommutator analogues of several well known operator identities involving repeated commutators are derived. It is pointed out that these are more convenient for application whenever the operators in question satisfy simpler repeated anticommutator relations (and, in particular, when they anticommute) than the repeated commutator relations. The diagonalization of two spin-1 Hamiltonians, in which the anticommutator analogue of the Baker-Hausdorff lemma is used to good advantage, is presented.
Issue 4 ( 21 February 1990)
I Mendas and P Milutinovic 1990 J. Phys. A: Math. Gen. 23 537
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