中国科学院机构知识库网格
Chinese Academy of Sciences Institutional Repositories Grid
NULL ZIG-ZAG WILSON LOOPS IN N=4 SYM

文献类型:期刊论文

作者Xie, ZF , Chinese Acad Sci, Inst Theoret Phys, Beijing 1000190, Peoples R China; Xie Zhifeng
刊名MODERN PHYSICS LETTERS A
出版日期2010
卷号25期号:8页码:627-639
关键词Yang-mills Amplitudes
ISSN号0217-7323
英文摘要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
学科主题Physics
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WOS记录号WOS:000276154200008
公开日期2012-08-02
源URL[http://ir.itp.ac.cn/handle/311006/5151]  
专题理论物理研究所_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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Xie, ZF , Chinese Acad Sci, Inst Theoret Phys, Beijing 1000190, Peoples R China,Xie Zhifeng. NULL ZIG-ZAG WILSON LOOPS IN N=4 SYM[J]. MODERN PHYSICS LETTERS A,2010,25(8):627-639.
APA Xie, ZF , Chinese Acad Sci, Inst Theoret Phys, Beijing 1000190, Peoples R China,&Xie Zhifeng.(2010).NULL ZIG-ZAG WILSON LOOPS IN N=4 SYM.MODERN PHYSICS LETTERS A,25(8),627-639.
MLA Xie, ZF , Chinese Acad Sci, Inst Theoret Phys, Beijing 1000190, Peoples R China,et al."NULL ZIG-ZAG WILSON LOOPS IN N=4 SYM".MODERN PHYSICS LETTERS A 25.8(2010):627-639.

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来源:理论物理研究所

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