The model with the BPS preserving defect

2019
journal article
article
38
dc.abstract.enThe $\phi ^{4}$ model is coupled to an impurity in a way that preserves one-half of the BPS property. This means that the antikink-impurity bound state is still a BPS solution, i.e., a zero-pressure solution saturating the topological energy bound. The kink-impurity bound state, on the other hand, does not saturate the bound, in general. We found that, although the impurity breaks translational invariance, it is, in some sense, restored in the BPS sector where the energy of the antikink-impurity solution does not depend on their mutual distance. This is reflected in the existence of a generalised translational symmetry and a zero mode. We also investigate scattering processes. In particular, we compare the antikink-impurity interaction close to the BPS regime, which presents a rather smooth, elastic like nature, with other scattering processes. However, even in this case, after exciting a sufficiently large linear mode on the incoming antikink, we can depart from the close-to-BPS regime. This results, for example, in a backward scattering.pl
dc.affiliationWydział Fizyki, Astronomii i Informatyki Stosowanej : Instytut Fizyki im. Mariana Smoluchowskiegopl
dc.contributor.authorAdam, C.pl
dc.contributor.authorRomańczukiewicz, Tomasz - 147959 pl
dc.contributor.authorWereszczyński, Andrzej - 132581 pl
dc.date.accessioned2019-09-04T08:21:03Z
dc.date.available2019-09-04T08:21:03Z
dc.date.issued2019pl
dc.date.openaccess0
dc.description.accesstimew momencie opublikowania
dc.description.number3pl
dc.description.versionostateczna wersja wydawcy
dc.description.volume2019pl
dc.identifier.articleid131pl
dc.identifier.doi10.1007/JHEP03(2019)131pl
dc.identifier.eissn1029-8479pl
dc.identifier.issn1126-6708pl
dc.identifier.projectROD UJ / OPpl
dc.identifier.urihttps://ruj.uj.edu.pl/xmlui/handle/item/81758
dc.languageengpl
dc.language.containerengpl
dc.rightsUdzielam licencji. Uznanie autorstwa 4.0 Międzynarodowa*
dc.rights.licenceCC-BY
dc.rights.urihttp://creativecommons.org/licenses/by/4.0/legalcode.pl*
dc.share.typeotwarte czasopismo
dc.subtypeArticlepl
dc.titleThe $\phi ^{4}$ model with the BPS preserving defectpl
dc.title.journalThe Journal of High Energy Physicspl
dc.typeJournalArticlepl
dspace.entity.typePublication
dc.abstract.enpl
The $\phi ^{4}$ model is coupled to an impurity in a way that preserves one-half of the BPS property. This means that the antikink-impurity bound state is still a BPS solution, i.e., a zero-pressure solution saturating the topological energy bound. The kink-impurity bound state, on the other hand, does not saturate the bound, in general. We found that, although the impurity breaks translational invariance, it is, in some sense, restored in the BPS sector where the energy of the antikink-impurity solution does not depend on their mutual distance. This is reflected in the existence of a generalised translational symmetry and a zero mode. We also investigate scattering processes. In particular, we compare the antikink-impurity interaction close to the BPS regime, which presents a rather smooth, elastic like nature, with other scattering processes. However, even in this case, after exciting a sufficiently large linear mode on the incoming antikink, we can depart from the close-to-BPS regime. This results, for example, in a backward scattering.
dc.affiliationpl
Wydział Fizyki, Astronomii i Informatyki Stosowanej : Instytut Fizyki im. Mariana Smoluchowskiego
dc.contributor.authorpl
Adam, C.
dc.contributor.authorpl
Romańczukiewicz, Tomasz - 147959
dc.contributor.authorpl
Wereszczyński, Andrzej - 132581
dc.date.accessioned
2019-09-04T08:21:03Z
dc.date.available
2019-09-04T08:21:03Z
dc.date.issuedpl
2019
dc.date.openaccess
0
dc.description.accesstime
w momencie opublikowania
dc.description.numberpl
3
dc.description.version
ostateczna wersja wydawcy
dc.description.volumepl
2019
dc.identifier.articleidpl
131
dc.identifier.doipl
10.1007/JHEP03(2019)131
dc.identifier.eissnpl
1029-8479
dc.identifier.issnpl
1126-6708
dc.identifier.projectpl
ROD UJ / OP
dc.identifier.uri
https://ruj.uj.edu.pl/xmlui/handle/item/81758
dc.languagepl
eng
dc.language.containerpl
eng
dc.rights*
Udzielam licencji. Uznanie autorstwa 4.0 Międzynarodowa
dc.rights.licence
CC-BY
dc.rights.uri*
http://creativecommons.org/licenses/by/4.0/legalcode.pl
dc.share.type
otwarte czasopismo
dc.subtypepl
Article
dc.titlepl
The $\phi ^{4}$ model with the BPS preserving defect
dc.title.journalpl
The Journal of High Energy Physics
dc.typepl
JournalArticle
dspace.entity.type
Publication

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