Open-Boundary Conditions in the Deconfined Phase
arXiv:1903.02894 · doi:10.1140/epjc/s10052-019-7564-z
Abstract
In this work, we consider open-boundary conditions at high temperatures, as they can potentially be of help to measure the topological susceptibility. In particular, we measure the extent of the boundary effects at and . In the first case, it is larger than at while we find it to be smaller in the second case. The length of this "boundary zone" is controlled by the screening masses. We use this fact to measure the scalar and pseudo-scalar screening masses at these two temperatures. We observe a mass gap at but not at . Finally, we use our pseudo-scalar channel analysis to estimate the topological susceptibility. The results at are in good agreement with the literature. At , they appear to suffer from topological freezing, impeding us from providing a precise determination of the topological susceptibility. It still provides us with a lower bound, which is already in mild tension with some of the existing results.
arXiv comment12 pages, 16 figures. V2: Improved a lot the introduction and discussion on topological susceptibility. Added a figure. Corresponds to published version
References in corpus (28)
- Properties and uses of the Wilson flow in lattice QCD
- Monte Carlo errors with less errors
- Critical slowing down and error analysis in lattice QCD simulations
- Lattice QCD without topology barriers
- Finite volume QCD at fixed topological charge
- Lattice QCD input for axion cosmology
- Axion cosmology, lattice QCD and the dilute instanton gas
- Critical point and scale setting in SU(3) plasma: An update
- Topology in full QCD at high temperature: a multicanonical approach
- Energy-momentum tensor from the Yang-Mills gradient flow
- Space-time symmetries and the Yang-Mills gradient flow
- Topological susceptibility and the sampling of field space in lattice QCD simulations
- Dimensional Reduction and Screening Masses in Pure Gauge Theories at Finite Temperature
- Hadron masses and matrix elements from the QCD Schr"odinger functional
- Stochastic locality and master-field simulations of very large lattices
- Topological critical slowing down: variations on a toy model
- in pure-glue QCD through reweighting
- Topological susceptibility at from master-field simulations of the SU(3) gauge theory
- Correlation and localization properties of topological charge density and the pseudoscalar glueball mass in SU(3) lattice Yang-Mills theory
- SU(3) Yang Mills theory at small distances and fine lattices
- Density, short-range order and the quark-gluon plasma
- Using Wilson flow to study the SU(3) deconfinement transition
- Interpreting Numerical Measurements in Fixed Topological Sectors
- Axion dark matter and the Lattice
- Open Boundary Condition, Wilson Flow and the Scalar Glueball Mass
- The Wilson Flow and the finite temperature phase transition
- The topological properties of QCD at high temperature: problems and perspectives
- Thermal Simulations, Open Boundary Conditions and Switches