Boundary scattering in the ϕ 4 model

Abstract We study boundary scattering in the ϕ 4 model on a half-line with a oneparameter family of Neumann-type boundary conditions. A rich variety of phenomena is observed, which extends previously-studied behaviour on the full line to include regimes of near-elastic scattering, the restoration of...

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Main Authors: Patrick Dorey, Aliaksei Halavanau, James Mercer, Tomasz Romanczukiewicz, Yasha Shnir
Format: Article
Language:English
Published: SpringerOpen 2017-05-01
Series:Journal of High Energy Physics
Subjects:
Online Access:http://link.springer.com/article/10.1007/JHEP05(2017)107
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author Patrick Dorey
Aliaksei Halavanau
James Mercer
Tomasz Romanczukiewicz
Yasha Shnir
author_facet Patrick Dorey
Aliaksei Halavanau
James Mercer
Tomasz Romanczukiewicz
Yasha Shnir
author_sort Patrick Dorey
collection DOAJ
description Abstract We study boundary scattering in the ϕ 4 model on a half-line with a oneparameter family of Neumann-type boundary conditions. A rich variety of phenomena is observed, which extends previously-studied behaviour on the full line to include regimes of near-elastic scattering, the restoration of a missing scattering window, and the creation of a kink or oscillon through the collision-induced decay of a metastable boundary state. We also study the decay of the vibrational boundary mode, and explore different scenarios for its relaxation and for the creation of kinks.
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spelling doaj.art-1f269b6bf4bf4990b788941fc0b0e1992022-12-22T00:54:52ZengSpringerOpenJournal of High Energy Physics1029-84792017-05-012017512410.1007/JHEP05(2017)107Boundary scattering in the ϕ 4 modelPatrick Dorey0Aliaksei Halavanau1James Mercer2Tomasz Romanczukiewicz3Yasha Shnir4Department of Mathematical Sciences, Durham UniversityDepartment of Theoretical Physics and Astrophysics, BSUDepartment of Mathematical Sciences, Durham UniversityInstitute of Physics, Jagiellonian UniversityDepartment of Theoretical Physics and Astrophysics, BSUAbstract We study boundary scattering in the ϕ 4 model on a half-line with a oneparameter family of Neumann-type boundary conditions. A rich variety of phenomena is observed, which extends previously-studied behaviour on the full line to include regimes of near-elastic scattering, the restoration of a missing scattering window, and the creation of a kink or oscillon through the collision-induced decay of a metastable boundary state. We also study the decay of the vibrational boundary mode, and explore different scenarios for its relaxation and for the creation of kinks.http://link.springer.com/article/10.1007/JHEP05(2017)107Field Theories in Lower DimensionsNonperturbative EffectsSolitons Monopoles and Instantons
spellingShingle Patrick Dorey
Aliaksei Halavanau
James Mercer
Tomasz Romanczukiewicz
Yasha Shnir
Boundary scattering in the ϕ 4 model
Journal of High Energy Physics
Field Theories in Lower Dimensions
Nonperturbative Effects
Solitons Monopoles and Instantons
title Boundary scattering in the ϕ 4 model
title_full Boundary scattering in the ϕ 4 model
title_fullStr Boundary scattering in the ϕ 4 model
title_full_unstemmed Boundary scattering in the ϕ 4 model
title_short Boundary scattering in the ϕ 4 model
title_sort boundary scattering in the ϕ 4 model
topic Field Theories in Lower Dimensions
Nonperturbative Effects
Solitons Monopoles and Instantons
url http://link.springer.com/article/10.1007/JHEP05(2017)107
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AT aliakseihalavanau boundaryscatteringintheph4model
AT jamesmercer boundaryscatteringintheph4model
AT tomaszromanczukiewicz boundaryscatteringintheph4model
AT yashashnir boundaryscatteringintheph4model