open access

https://hdl.handle.net/2115/67029

Exact lattice supersymmetry at the quantum level for N = 2 Wess–Zumino models in 1- and 2-dimensions

英語

Ward–Takahashi identity

2016-08-20

World Scientific Publishing

International Journal of Modern Physics A

31(23)

1650125

Supersymmetric lattice Ward-Takahashi identities are investigated perturbatively up to two-loop corrections for super doubler approach of N = 2 lattice Wess-Zumino models in 1- and 2-dimensions. In this approach, notorious chiral fermion doublers are treated as physical particles and momentum conservation is modified in such a way that lattice Leibniz rule is satisfied. The two major difficulties to keep exact lattice supersymmetry are overcome. This formulation defines, however, nonlocal field theory. Nevertheless we confirm that exact supersymmetry on the lattice is realized for all supercharges at the quantum level. Delicate issues of associativity are also discussed.

学術雑誌論文

Accepted Manuscript

Electronic version of an article published as International Journal of Modern Physics A, Vol.31, No.23, 2016, 1650125 DOI:10.1142/S0217751X16501256 © copyright World Scientific Publishing Company https://doi.org/10.1142/S0217751X16501256

0217-751X

1793-656X

AA10669072