From the Hubbard to the SO(5) Ladder: A Numerical Study

dc.creatorDuffy, Daniel
dc.creatorHaas, Stephan
dc.creatorKim, Eugene
dc.date1998-04-20
dc.date1998-04-27
dc.date.accessioned2026-07-07T03:10:22Z
dc.date.available2026-07-07T03:10:22Z
dc.descriptionThe Hubbard Hamiltonian on a two-leg ladder is studied numerically using quantum Monte Carlo and Exact Diagonalization techniques. A rung interaction, $V$, is turned on such that the resulting model has an exact SO(5) symmetry when $V=-U$. The evolution of the low energy excitation spectrum is presented from the pure Hubbard ladder to the SO(5) ladder. It is shown that the low energy excitations in the pure Hubbard ladder have an approximate SO(5) symmetry.
dc.description4 pages, Latex, 4 figures embedded in the text, minor changes
dc.identifierhttps://arxiv.org/abs/cond-mat/9804221
dc.identifierhttp://arxiv.org/abs/cond-mat/9804221
dc.identifier.urihttp://salesiana.dossiersoluciones.com/handle/123456789/28216
dc.subjectStrongly Correlated Electrons
dc.titleFrom the Hubbard to the SO(5) Ladder: A Numerical Study
dc.typetext

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