Unquenched domain wall quarks with multi-bosons

TL;DR

This paper discusses the implementation of unquenched domain wall quarks using the TSMB algorithm, focusing on computational efficiency and including single quark flavors like strange quarks, with tests near the thermodynamical crossover.

Contribution

It introduces a method for simulating unquenched domain wall quarks with low memory usage, accommodating single flavors, and provides test results near the crossover region.

Findings

Memory usage remains low regardless of polynomial order

Successful simulation of two degenerate quark flavors

Effective inclusion of single quark flavors like strange quarks

Abstract

The numerical simulation of domain wall quarks with the two-step multi-boson (TSMB) algorithm is considered. The inclusion of single quark flavours, as required for strange quarks, is discussed. The usage of computer memory can be kept relatively low, independently of the order of polynomial approximations. Tests are performed with two flavours (N_f=2) of degenerate quarks near the N_t=4 thermodynamical cross over.