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arXiv · 2510.02954

Approaching the continuum with anisotropic lattice thermodynamics

Jon-Ivar Skullerud·Gert Aarts·Chris Allton·M. Naeem Anwar·Ryan Bignell·Tim Burns·Simon Hands·Rachel Horohan D'Arcy·Ben Jäger·Seyong Kim·Alan Kirby·Maria Paola Lombardo·Seung-Il Nam·Sinéad M. Ryan·Antonio Smecca
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Abstract

The FASTSUM collaboration has a long-standing programme of using anisotropic lattice QCD to investigate strong interaction thermodynamics, and in particular spectral quantities. Here we present first results from our new ensemble which has a temporal lattice spacing a_t=15am and anisotropy xi=a_s/a_t=7, giving unprecedented resolution in the temporal direction. We show results for the chiral transition, vector-axial-vector degeneracy, and heavy quarkonium, and compare them with earlier results with coarser time resolution.

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Jon-Ivar Skullerud, Gert Aarts, Chris Allton, M. Naeem Anwar, Ryan Bignell, Tim Burns, Simon Hands, Rachel Horohan D'Arcy, Ben Jäger, Seyong Kim, Alan Kirby, Maria Paola Lombardo, Seung-Il Nam, Sinéad M. Ryan, Antonio Smecca. 2025-10-03. Approaching the continuum with anisotropic lattice thermodynamics. https://arxiv.org/abs/2510.02954

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