Excitation spectrum and critical exponents of a one-dimensional integrable model of fermions with correlated hopping
نویسندگان
چکیده
منابع مشابه
Excitation spectrum and critical exponents of a one-dimensional integrable model of fermions with correlated hopping*
We investigate the excitation spectrum of a model of N colour fermions with correlated hopping which can be solved by a nested Bethe ansatz. The gapless excitations of particle-hole type are calculated as well as the spin-wave like excitations which have a gap. Using general predictions of conformal field theory the long distance behaviour of some groundstate correlation functions are derived f...
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ژورنال
عنوان ژورنال: Journal of Physics A: Mathematical and General
سال: 1993
ISSN: 0305-4470,1361-6447
DOI: 10.1088/0305-4470/26/19/019