N=4 supersymmetry on a space-time lattice
Research output: Contribution to journal › Journal article › Research › peer-review
Standard
N=4 supersymmetry on a space-time lattice. / Catterall, Simon; Schaich, David; Damgaard, Poul H.; DeGrand, Thomas; Giedt, Joel.
In: Physical Review D (Particles, Fields, Gravitation and Cosmology), Vol. 90, No. 6, 065013, 10.09.2014.Research output: Contribution to journal › Journal article › Research › peer-review
Harvard
APA
Vancouver
Author
Bibtex
}
RIS
TY - JOUR
T1 - N=4 supersymmetry on a space-time lattice
AU - Catterall, Simon
AU - Schaich, David
AU - Damgaard, Poul H.
AU - DeGrand, Thomas
AU - Giedt, Joel
PY - 2014/9/10
Y1 - 2014/9/10
N2 - Maximally supersymmetric Yang–Mills theory in four dimensions can be formulated on a space-time lattice while exactly preserving a single supersymmetry. Here we explore in detail this lattice theory, paying particular attention to its strongly coupled regime. Targeting a theory with gauge group SU(N), the lattice formulation is naturally described in terms of gauge group U(N). Although the U(1) degrees of freedom decouple in the continuum limit we show that these degrees of freedom lead to unwanted lattice artifacts at strong coupling. We demonstrate that these lattice artifacts can be removed, leaving behind a lattice formulation based on the SU(N) gauge group with the expected apparently conformal behavior at both weak and strong coupling.
AB - Maximally supersymmetric Yang–Mills theory in four dimensions can be formulated on a space-time lattice while exactly preserving a single supersymmetry. Here we explore in detail this lattice theory, paying particular attention to its strongly coupled regime. Targeting a theory with gauge group SU(N), the lattice formulation is naturally described in terms of gauge group U(N). Although the U(1) degrees of freedom decouple in the continuum limit we show that these degrees of freedom lead to unwanted lattice artifacts at strong coupling. We demonstrate that these lattice artifacts can be removed, leaving behind a lattice formulation based on the SU(N) gauge group with the expected apparently conformal behavior at both weak and strong coupling.
U2 - 10.1103/PhysRevD.90.065013
DO - 10.1103/PhysRevD.90.065013
M3 - Journal article
VL - 90
JO - Physical Review D
JF - Physical Review D
SN - 2470-0010
IS - 6
M1 - 065013
ER -
ID: 139967716