Spin Gap Fixed Points in the Double Chain Problem
arXiv:cond-mat/9401010 · doi:10.1103/PhysRevB.50.252
Abstract
Applying the bosonization procedure to weakly coupled Hubbard chains we discuss the fixed points of the renormalization group flow where all spin excitations are gapful and a singlet pairing becomes the dominant instability.
15 pages, TeX, C Version 3.0
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