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Unitary transformations with spin angular momentum operators |
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| Authors: | JM Dixon |
| Institution: | Department of Physics, The University of Warwick, Coventry CV4 7AL, U.K. |
| Abstract: | Useful formulae for replacing an exponentiated spin scalar product by a finite sum of powers of this product, are presented in the context of Coulomb interactions between magnetic ions and conduction electrons in metals. |
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