Please use this identifier to cite or link to this item: https://hdl.handle.net/2440/123725
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Type: Conference paper
Title: Background field Landau mode operators for the nucleon
Author: Kamleh, W.
Bignell, R.
Leinweber, D.
Burkardt, M.
Citation: EPJ Web of Conferences, 2018 / Della Morte, M., Fritzsch, P., Gámiz Sánchez, E., Pena Ruano, C. (ed./s), vol.175, pp.05018-1-05018-8
Publisher: EJP Sciences
Issue Date: 2018
ISSN: 2101-6275
2100-014X
Conference Name: International Symposium on Lattice Field Theory (Lattice) (18 Jun 2017 - 24 Jun 2017 : Granada, Spain)
Editor: Della Morte, M.
Fritzsch, P.
Gámiz Sánchez, E.
Pena Ruano, C.
Statement of
Responsibility: 
Waseem Kamleh, Ryan Bignell, Derek B. Leinweber, and Matthias Burkardt
Abstract: The introduction of a uniform background magnetic field breaks threedimensional spatial symmetry for a charged particle and introduces Landau mode effects. Standard quark operators are inefficient at isolating the nucleon correlation function at nontrivial field strengths. We introduce novel quark operators constructed from the twodimensional Laplacian eigenmodes that describe a charged particle on a finite lattice. These eigenmode-projected quark operators provide enhanced precision for calculating nucleon energy shifts in a magnetic field. Preliminary results are obtained for the neutron and proton magnetic polarisabilities using these methods.
Rights: © The Authors, published by EDP Sciences. This is an open access article distributed under the terms of the Creative Commons Attribution License 4.0 (http://creativecommons.org/licenses/by/4.0/).
DOI: 10.1051/epjconf/201817505018
Published version: http://dx.doi.org/10.1051/epjconf/201817505018
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