Supersymmetry on a euclidean spacetime lattice 1. A target theory with four supercharges

Supersymmetry on a euclidean spacetime lattice 1. A target theory with four supercharges
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欧氏时空晶格上的超对称性 1. 具有四个超电荷的目标理论

DOI:
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发表时间:
2003
期刊:
影响因子:
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通讯作者:
M. Unsal
M. Unsal
中科院分区:
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文献类型:
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作者:
A. Cohen;D. Kaplan;E. Katz;M. Unsal

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我们制定了一个欧几里德时空晶格的连续极限是(2,2)超对称杨米尔斯理论在二维,一个理论,它具有四个超荷和一个反常的全球手征对称性。晶格作用量遵循一个精确的超对称性,这使得目标理论在连续极限中出现而无需微调。我们的方法利用了前面描述的闵可夫斯基空间中的空间晶格的轨道结构,并且可以推广到具有额外超对称性和更多时空维度的更复杂的理论。
We formulate a euclidean spacetime lattice whose continuum limit is (2,2) supersymmetric Yang-Mills theory in two dimensions, a theory which possesses four supercharges and an anomalous global chiral symmetry. The lattice action respects one exact supersymmetry, which allows the target theory to emerge in the continuum limit without fine-tuning. Our method exploits an orbifold construction described previously for spatial lattices in Minkowski space, and can be generalized to more complicated theories with additional supersymmetry and more spacetime dimensions.