Zero-momentum modes and chiral limit in compact lattice QED
I.L. Bogolubsky, V.K. Mitrjushkin, M. Mueller-Preussker, N.V., Zverev
TL;DR
This paper studies how zero-momentum gauge modes affect physical measurements in compact lattice QED, revealing they obscure critical behavior near the chiral limit and discussing methods to remove them.
Contribution
It demonstrates the impact of zero-momentum modes on observables and proposes techniques to eliminate these modes in lattice QED simulations.
Findings
Zero-momentum modes hide critical behavior near the chiral limit.
Methods for removing zero-momentum modes are discussed.
Zero-momentum modes significantly influence gauge invariant observables.
Abstract
The influence of zero-momentum gauge modes on physical observables is investigated for compact lattice QED with dynamical and quenched Wilson fermions. Within the Coulomb phase, zero-momentum modes are shown to hide the critical behaviour of gauge invariant fermion observables near the chiral limit. Methods for eliminating zero-momentum modes are discussed.
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