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TURKISH JOURNAL OF PHYSICS

Perturbing the SU(1,1) Generators

Haluk BEKER

Published Jan 1, 1997• 1 citation
Publisher
DOI
10.55730/1300-0101.2359

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A cuprate superconductor model based on the analogy with atomic nuclei was shown by Iachello to have an su(3) structure. The mean-field approximation Hamiltonian can be written as a linear function of the generators of the su(3) algebra. Using algebraic methods, we derive the eigenvalues of the reduced Hamiltonian beyond the subalgebras u(1)⊗ u(2) and so(3) of the su(3) algebra. In particular, by considering the coherence between s- and d-wave pairs as a perturbation, the effects of the coherent term upon the energy spectrum are investigated.