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Fumihiko Sugino
순수물리이론 연구단
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O(a) improvement of 2D N=(2,2) lattice SYM theory

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Title
O(a) improvement of 2D N=(2,2) lattice SYM theory
Author(s)
Masanori Hanada; Daisuke Kadoh; So Matsuura; Fumihiko Sugino
Publication Date
2018-02
Journal
NUCLEAR PHYSICS B, v.929, no., pp.266 - 297
Publisher
ELSEVIER SCIENCE BV
Abstract
We perform a tree-level O(a) improvement of two-dimensional N=(2,2) supersymmetric Yang–Mills theory on the lattice, motivated by the fast convergence in numerical simulations. The improvement respects an exact supersymmetry Q which is needed for obtaining the correct continuum limit without a parameter fine tuning. The improved lattice action is given within a milder locality condition in which the interactions are decaying as the exponential of the distance on the lattice. We also prove that the path-integral measure is invariant under the improved Q-transformation. © 2018 The Author(s)
URI
http://pr.ibs.re.kr/handle/8788114/4657
DOI
10.1016/j.nuclphysb.2018.02.008
ISSN
0550-3213
Appears in Collections:
Center for Fundamental Theory(순수물리이론 연구단) > Journal Papers (저널논문)
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