Two-Dimensional Fermi Gas at Half Filling is a Luttinger Liquid
نویسنده
چکیده
It is shown that in a mortel with a regular long range interaction, a 2D fermion gas at half filling of the band is a Luttinger Liquid. It is found that under certain conditions the jump in the momentum distribution of such a gas at the Fermi surface deperlds on the filling factor v in trie form +~ ((2v -1)/A(~°,
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