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AbstractAbstract
[en] We study the interacting one-dimensional quantum lattice gas of massive fermions on a ring with L lattice sites. The ring is threaded by a magnetic flux corresponding to a twist in boundary conditions. We compute the periodicity of the ground state under an adiabatically increase in flux and Berry's Phase occurring in this process. The model has a second order phase transition line where the Berry Phase changes non-analytically. (author)
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Jul 1993; 10 p
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