Talk:Staggered fermion

Merger discussion

The following discussion is closed. Please do not modify it. Subsequent comments should be made in a new section. A summary of the conclusions reached follows.

No oppositon to merge, but blanked and redirected instead since there was no content not already in the target article. Felix QW (talk) 09:54, 1 May 2022 (UTC)

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Request received to merge articles: Kogut-Susskind fermion into staggered fermion; dated: February 2022. Proposer's Rationale: They are the same lattice fermion, just under a different name. Discuss here. OpenScience709 (talk) 22:50, 16 February 2022 (UTC)

The discussion above is closed. Please do not modify it. Subsequent comments should be made on the appropriate discussion page. No further edits should be made to this discussion.

Complete rewrite

The rewrite focused on introducing the three main formulations of staggered fermions; the single component, spin-taste basis, and the momentum space versions. It also went into the simulation details, explaining advantages staggered fermions have, what improved actions are used today, and also going into the theoretically interesting fourth root trick. Possible things to add in the future (but also maybe not) is concerning how one builds interpolators using staggered fermions and also staggered chiral perturbation theory. OpenScience709 (talk) 10:00, 30 April 2022 (UTC)

Great job, thank you so much! I do recall the stub this article used to be.

I have one remark though. You write "rather than breaking any assumptions of the Nielsen–Ninomiya theorem, staggered fermions merely reduce the number of the doublers". This is not correct. Staggered fermions do break translational invariance since different products of gamma-matrices are assigned to different lattice positions. Armer Thor (talk) 21:35, 19 October 2022 (UTC)

Sounds reasonable. I made the edit. OpenScience709 (talk) 08:06, 20 October 2022 (UTC)