Optical Conductivity of the Half-Filled Hubbard Chain
نویسندگان
چکیده
منابع مشابه
The half - filled Hubbard chain in the Composite Operator Method : A comparison with Bethe Ansatz
– The one-dimensional Hubbard model at half-filling is studied in the framework of the Composite Operator Method using a static approximation. A solution characterized by strong antiferromagnetic correlations and a gap for any nonzero on-site interaction U is found. The corresponding ground-state energy, double occupancy and specific heat are in excellent agreement with those obtained within th...
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ژورنال
عنوان ژورنال: Physical Review Letters
سال: 2000
ISSN: 0031-9007,1079-7114
DOI: 10.1103/physrevlett.85.3910