A generalized bag-like boundary condition for fields with arbitrary spin

Boundary conditions (BCs) for the Maxwell and Dirac fields at material surfaces are widely-used and physically well-motivated, but do not appear to have been generalized to deal with higher spin fields. As a result there is no clear prescription as to which BCs should be selected in order to obtain...

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Main Authors: Adam Stokes, Robert Bennett
Format: Article
Language:English
Published: IOP Publishing 2015-01-01
Series:New Journal of Physics
Subjects:
Online Access:https://doi.org/10.1088/1367-2630/17/7/073012
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author Adam Stokes
Robert Bennett
author_facet Adam Stokes
Robert Bennett
author_sort Adam Stokes
collection DOAJ
description Boundary conditions (BCs) for the Maxwell and Dirac fields at material surfaces are widely-used and physically well-motivated, but do not appear to have been generalized to deal with higher spin fields. As a result there is no clear prescription as to which BCs should be selected in order to obtain physically-relevant results pertaining to confined higher spin fields. This lack of understanding is significant given that boundary-dependent phenomena are ubiquitous across physics, a prominent example being the Casimir effect. Here, we use the two-spinor calculus formalism to present a unified treatment of BCs routinely employed in the treatment of spin- $1/2$ and spin-1 fields. We then use this unification to obtain a BC that can be applied to massless fields of any spin, including the spin-2 graviton, and its supersymmetric partner the spin- $3/2$ gravitino.
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spelling doaj.art-4bfefa5b7a214067b79a324cc7bc6a432023-08-08T14:21:18ZengIOP PublishingNew Journal of Physics1367-26302015-01-0117707301210.1088/1367-2630/17/7/073012A generalized bag-like boundary condition for fields with arbitrary spinAdam Stokes0Robert Bennett1Department of Physics & Astronomy, University of Leeds , LS2 9JT, UKDepartment of Physics & Astronomy, University of Leeds , LS2 9JT, UKBoundary conditions (BCs) for the Maxwell and Dirac fields at material surfaces are widely-used and physically well-motivated, but do not appear to have been generalized to deal with higher spin fields. As a result there is no clear prescription as to which BCs should be selected in order to obtain physically-relevant results pertaining to confined higher spin fields. This lack of understanding is significant given that boundary-dependent phenomena are ubiquitous across physics, a prominent example being the Casimir effect. Here, we use the two-spinor calculus formalism to present a unified treatment of BCs routinely employed in the treatment of spin- $1/2$ and spin-1 fields. We then use this unification to obtain a BC that can be applied to massless fields of any spin, including the spin-2 graviton, and its supersymmetric partner the spin- $3/2$ gravitino.https://doi.org/10.1088/1367-2630/17/7/073012Casimir effectspinor fieldsbag model11.10.-z12.20.-m03.70.+k
spellingShingle Adam Stokes
Robert Bennett
A generalized bag-like boundary condition for fields with arbitrary spin
New Journal of Physics
Casimir effect
spinor fields
bag model
11.10.-z
12.20.-m
03.70.+k
title A generalized bag-like boundary condition for fields with arbitrary spin
title_full A generalized bag-like boundary condition for fields with arbitrary spin
title_fullStr A generalized bag-like boundary condition for fields with arbitrary spin
title_full_unstemmed A generalized bag-like boundary condition for fields with arbitrary spin
title_short A generalized bag-like boundary condition for fields with arbitrary spin
title_sort generalized bag like boundary condition for fields with arbitrary spin
topic Casimir effect
spinor fields
bag model
11.10.-z
12.20.-m
03.70.+k
url https://doi.org/10.1088/1367-2630/17/7/073012
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