Random phase approximation for the 1D anti-ferromagnetic Heisenberg model
نویسندگان
چکیده
منابع مشابه
Random phase approximation for the 1 D anti - ferromagnetic Heisenberg model
The Hartree-Fock-RPA approach is applied to the 1D anti-ferromagnetic Heisen-berg model in the Jordan-Wigner representation. Somewhat contrary to expectation , this leads to reasonable results for spectral functions and sum rules in the symmetry unbroken phase. In a preliminary application of Self-Consistent RPA to finite size chains strongly improved results are obtained. The 1D Anti-Ferromagn...
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ژورنال
عنوان ژورنال: Journal of Physics: Condensed Matter
سال: 2006
ISSN: 0953-8984,1361-648X
DOI: 10.1088/0953-8984/18/45/011