15d ago
Sign Problem Landscape of Dimer, Loop, and Ground-State Sectors of a U(1) Quantum Link Model
Pallabi Dey · Debasish Banerjee · Emilie Huffman
Abstract
Author(s): Pallabi Dey, Debasish Banerjee, and Emilie Huffman<br/><p>The fermion sign problem poses a formidable challenge to the use of Monte Carlo methods for lattice gauge theories with dynamical fermionic matter fields. A meron-cluster algorithm recently formulated for gauge fields represented as spin- quantum links coupled to a single flavor of staggered fe…</p><br/>[Phys. Rev. Lett. 137, 090404] Published Thu Aug 27, 2026
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