Bulk-preventing actions for SU(N) gauge theories
Tobias Rindlisbacher, Kari Rummukainen, and Ahmed Salami
TL;DR
This paper introduces a new family of lattice SU(N) gauge actions that, when combined with HMC algorithms, effectively prevent unphysical bulk phase transitions at strong coupling, improving simulation reliability.
Contribution
A novel one-parameter family of lattice SU(N) gauge actions is proposed to prevent bulk phase transitions, enhancing the stability of lattice gauge theory simulations.
Findings
Prevents bulk phase transitions in SU(N) lattice gauge theories.
Effective across different SU(N) groups.
Potentially improves simulation accuracy at strong coupling.
Abstract
Lattice gauge field theories may suffer from unphysical "bulk" phase transitions at strong lattice gauge coupling. We introduce a one-parameter family of lattice SU(N) gauge actions which, when used in combination with an HMC update algorithm, prevents the appearance of the bulk phase transition. We briefly discuss the (presumed) mechanism behind the prevention of the bulk transition and present test results for different SU(N) gauge groups.
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Taxonomy
TopicsQuantum Chromodynamics and Particle Interactions · High-Energy Particle Collisions Research · Physics of Superconductivity and Magnetism