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cond-mat.str-el1999
The spin-1 ladder : A bosonization study
D. Allen, D. Sénéchal
We construct a field-theoretic description of two coupled spin-1 Heisenberg chains, starting with the known representation of a single spin-1 chain in terms of Majorana fermions (o…
cond-mat.str-el1999
The fate of spinons in spontaneously dimerised spin-1/2 ladders
Dave Allen, Fabian H. L. Essler, Alexander A. Nersesyan
We study a weakly coupled, frustrated two-leg spin-1/2 Heisenberg ladder. For vanishing coupling between the chains, elementary excitations are deconfined, gapless spin-1/2 objects…