کد مقاله کد نشریه سال انتشار مقاله انگلیسی نسخه تمام متن
1842761 1031486 2007 28 صفحه PDF دانلود رایگان
عنوان انگلیسی مقاله ISI
Exact solution and finite size properties of the Uq[osp(2|2m)] vertex models
موضوعات مرتبط
مهندسی و علوم پایه ریاضیات فیزیک ریاضی
پیش نمایش صفحه اول مقاله
Exact solution and finite size properties of the Uq[osp(2|2m)] vertex models
چکیده انگلیسی
We have diagonalized the transfer matrix of the Uq[osp(2|2m)] vertex model by means of the algebraic Bethe ansatz method for a variety of grading possibilities. This allowed us to investigate the thermodynamic limit as well as the finite size properties of the corresponding spin chain in the massless regime. The leading behaviour of the finite size corrections to the spectrum is conjectured for arbitrary m. For m=1 we find a critical line with central charge c=−1 whose exponents vary continuously with the q-deformation parameter. For m⩾2 the finite size term related to the conformal anomaly depends on the anisotropy which indicates a multicritical behaviour typical of loop models.
ناشر
Database: Elsevier - ScienceDirect (ساینس دایرکت)
Journal: Nuclear Physics B - Volume 768, Issue 3, 23 April 2007, Pages 219-246
نویسندگان
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