Neutron dynamics in ultra-strong electromagnetic fields: An example model

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dc.coverageDOI: 10.1515/zna-2024-0070
dc.creatorBruce, Stanley A.
dc.date2024
dc.date.accessioned2026-01-05T21:16:57Z
dc.date.available2026-01-05T21:16:57Z
dc.description<p>This work is concerned with the relativistic quantum dynamics of a self-interacting neutron in the presence of an external ultra-strong electromagnetic (EM) field in a cylindrical inertial frame. We first regard the Dirac-Pauli (DP) Lagrangian to study the planar dynamics of a neutron polarized along the z-axis subjected to a confining external static EM field composed of a homogeneous magnetic field in the z-direction and a linear radial electric field in the polar plane. The corresponding discrete Landau energy levels are found. As a nonlinear (NL) example model, we introduce a 1-flavor Nambu Jona-Lasinio (NJL) mass term into the DP Lagrangian. The continuous ground-state Landau levels are determined. We readily obtain modified Maxwell's equations associated with these levels. We consider a simple application of the model related to the dynamics of neutrons in the presence of strong-QED fields inside the surface of aligned neutron stars. We briefly comment on possible classical solitonic solutions of the model.</p>eng
dc.identifierhttps://investigadores.uandes.cl/en/publications/ae54e1d4-a1cf-4beb-839d-16599a5be29d
dc.identifier.urihttps://repositorio.uandes.cl/handle/uandes/67329
dc.languageeng
dc.rightsinfo:eu-repo/semantics/restrictedAccess
dc.sourcevol.79 (2024) nr.9 p.901-908
dc.subjectNambu Jona-Lasinio model
dc.subjectneutron dynamics in ultra-strong electromagnetic fields
dc.subjectnonlinear Dirac-Pauli equation
dc.titleNeutron dynamics in ultra-strong electromagnetic fields: An example modeleng
dc.typeArticleeng
dc.typeArtículospa
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