Lifting flat directions in lattice supersymmetry

Catterall, Simon and Schaich, David ORCID: 0000-0002-9826-2951 (2015) Lifting flat directions in lattice supersymmetry Journal of High Energy Physics, 2015 (7). 057-. ISSN 1126-6708, 1029-8479

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Abstract

We present a procedure to improve the lattice definition of N=4 supersymmetric Yang-Mills theory. The lattice construction necessarily involves U(1) flat directions, and we show how these can be lifted without violating the exact lattice supersymmetry. The basic idea is to modify the equations of motion of an auxiliary field, which determine the moduli space of the system. Applied to numerical calculations, the resulting improved lattice action leads to dramatically reduced violations of supersymmetric Ward identities and much more rapid approach to the continuum limit.

Item Type:	Article
Uncontrolled Keywords:	Lattice gauge field theories, Supersymmetric gauge theory
Depositing User:	Symplectic Admin
Date Deposited:	10 Jun 2019 08:54
Last Modified:	28 Feb 2026 23:49
DOI:	10.1007/JHEP07(2015)057
Related Websites:	Author Publisher
URI:	https://livrepository.liverpool.ac.uk/id/eprint/3045160
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