Exotic low-energy separation in 1D quantum liquids |
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| Authors: | J M P Carmelo A H Castro Neto D K Campbell |
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| Affiliation: | (1) Instituto de Ciencia de Materiales, C.S.I.C., E-28949 Cantoblanco, Madrid, Spain;(2) Department of Physics, University of California, 93106 Santa Barbara, California, USA;(3) Department of Physics, U.I.U.C., 61801-3080 Urbana, Illinois, USA |
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| Abstract: | We define the low-energy separation of the Hubbard chain in a magnetic field and chemical potential in terms of two  c and s bosonic algebras. This generalizes the usual charge-spin separation, which is recovered in the limit of zero magnetization only. The corresponding pseudoparticle bosonization follows directly from the perturbative character of the pseudoparticle operator basis. |
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