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NULL ZIG-ZAG WILSON LOOPS IN N=4 SYM
Xie Zhifeng; Xie, ZF , Chinese Acad Sci, Inst Theoret Phys, Beijing 1000190, Peoples R China
2010
发表期刊MODERN PHYSICS LETTERS A
ISSN0217-7323
卷号25期号:8页码:627-639
摘要In planar N=4 super symmetric Yang-Mills theory we have studied one kind of (locally) BPS Wilson loops composed of a large number of light-like segments, i.e. null zig-zags. These contours oscillate around smooth underlying space like paths. At one-loop in perturbation theory, we have compared the finite part of the expectation value of null zig-zags to the finite part of the expectation value of non-scalar-coupled Wilson loops whose contours are the underlying smooth space like paths. In arXiv:0710.1060 [hep-th] it was argued that these quantities are equal for the case of a rectangular Wilson loop. Here we present a modest extension of this result to zig-zags of circular shape and zig-zag following non-parallel, disconnected line segments and show analytically that the one-loop finite part is in deed that given by the smooth space like Wilson loop without coupling to scalars which the zig-zag contour approximates. We make some comments regarding the generalization to arbitrary shapes
部门归属[Xie, ZF] Chinese Acad Sci, Inst Theoret Phys, Beijing 1000190, Peoples R China; [Xie, ZF] Humboldt Univ, Inst Phys, D-12489 Berlin, Germany
关键词Yang-mills Amplitudes
学科领域Physics
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收录类别SCI
WOS记录号WOS:000276154200008
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文献类型期刊论文
条目标识符http://ir.itp.ac.cn/handle/311006/5151
专题理论物理所1978-2010年知识产出
通讯作者Xie, ZF , Chinese Acad Sci, Inst Theoret Phys, Beijing 1000190, Peoples R China
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GB/T 7714
Xie Zhifeng,Xie, ZF , Chinese Acad Sci, Inst Theoret Phys, Beijing 1000190, Peoples R China. NULL ZIG-ZAG WILSON LOOPS IN N=4 SYM[J]. MODERN PHYSICS LETTERS A,2010,25(8):627-639.
APA Xie Zhifeng,&Xie, ZF , Chinese Acad Sci, Inst Theoret Phys, Beijing 1000190, Peoples R China.(2010).NULL ZIG-ZAG WILSON LOOPS IN N=4 SYM.MODERN PHYSICS LETTERS A,25(8),627-639.
MLA Xie Zhifeng,et al."NULL ZIG-ZAG WILSON LOOPS IN N=4 SYM".MODERN PHYSICS LETTERS A 25.8(2010):627-639.
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