کد مقاله | کد نشریه | سال انتشار | مقاله انگلیسی | نسخه تمام متن |
---|---|---|---|---|
8200670 | 1528961 | 2006 | 4 صفحه PDF | دانلود رایگان |
عنوان انگلیسی مقاله ISI
Cutoff effects of Wilson fermions in the absence of spontaneous chiral symmetry breaking
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کلمات کلیدی
موضوعات مرتبط
مهندسی و علوم پایه
فیزیک و نجوم
فیزیک هسته ای و انرژی بالا
پیش نمایش صفحه اول مقاله
![عکس صفحه اول مقاله: Cutoff effects of Wilson fermions in the absence of spontaneous chiral symmetry breaking Cutoff effects of Wilson fermions in the absence of spontaneous chiral symmetry breaking](/preview/png/8200670.png)
چکیده انگلیسی
We simulate two-dimensional QED with two degenerate Wilson fermions and plaquette gauge action. As a consequence of the Mermin-Wagner theorem, in the continuum limit chiral symmetry is realized à la Wigner. This property affects also the size of the cutoff effects. That can be understood in view of the fact that the leading lattice artifacts are described, in the continuum Symanzik effective theory, by chirality breaking terms. In particular, vacuum expectation values of non-chirality-breaking operators are expected to be O(a) improved in the chiral limit. We provide a numerical confirmation of this expectation by performing a scaling test.
ناشر
Database: Elsevier - ScienceDirect (ساینس دایرکت)
Journal: Physics Letters B - Volume 632, Issues 5â6, 26 January 2006, Pages 663-666
Journal: Physics Letters B - Volume 632, Issues 5â6, 26 January 2006, Pages 663-666
نویسندگان
Michele Della Morte, Magdalena Luz,