Instanton corrections to the MSTB Kink mass
Abstract The Montonen-Sarker-Trullinger-Bishop (MSTB) model enjoys two classically degenerate kink solutions in the same topological sector. We construct the instanton that interpolates between them and argue that the two lowest lying Hamiltonian eigenstates in the kink sector of the corresponding q...
Saved in:
| Main Authors: | , , |
|---|---|
| Format: | Article |
| Language: | English |
| Published: |
SpringerOpen
2025-04-01
|
| Series: | Journal of High Energy Physics |
| Subjects: | |
| Online Access: | https://doi.org/10.1007/JHEP04(2025)173 |
| Tags: |
Add Tag
No Tags, Be the first to tag this record!
|
| _version_ | 1849728366447427584 |
|---|---|
| author | Jarah Evslin Alberto García Martín-Caro Andrzej Wereszczyński |
| author_facet | Jarah Evslin Alberto García Martín-Caro Andrzej Wereszczyński |
| author_sort | Jarah Evslin |
| collection | DOAJ |
| description | Abstract The Montonen-Sarker-Trullinger-Bishop (MSTB) model enjoys two classically degenerate kink solutions in the same topological sector. We construct the instanton that interpolates between them and argue that the two lowest lying Hamiltonian eigenstates in the kink sector of the corresponding quantum theory correspond to symmetric and antisymmetric combinations of coherent states localized at these two solutions. We use the instanton gas approximation to provide a simple, analytic formula for the leading contribution to the mass splitting between these two states. |
| format | Article |
| id | doaj-art-25352435c73f44e28343d7991292ee91 |
| institution | DOAJ |
| issn | 1029-8479 |
| language | English |
| publishDate | 2025-04-01 |
| publisher | SpringerOpen |
| record_format | Article |
| series | Journal of High Energy Physics |
| spelling | doaj-art-25352435c73f44e28343d7991292ee912025-08-20T03:09:34ZengSpringerOpenJournal of High Energy Physics1029-84792025-04-012025411810.1007/JHEP04(2025)173Instanton corrections to the MSTB Kink massJarah Evslin0Alberto García Martín-Caro1Andrzej Wereszczyński2Quark Matter Research Center, Institute of Modern PhysicsDepartment of Physics, University of the Basque Country UPV/EHUInstitute of Theoretical Physics, Jagiellonian UniversityAbstract The Montonen-Sarker-Trullinger-Bishop (MSTB) model enjoys two classically degenerate kink solutions in the same topological sector. We construct the instanton that interpolates between them and argue that the two lowest lying Hamiltonian eigenstates in the kink sector of the corresponding quantum theory correspond to symmetric and antisymmetric combinations of coherent states localized at these two solutions. We use the instanton gas approximation to provide a simple, analytic formula for the leading contribution to the mass splitting between these two states.https://doi.org/10.1007/JHEP04(2025)173Solitons Monopoles and InstantonsNonperturbative EffectsField Theories in Lower Dimensions |
| spellingShingle | Jarah Evslin Alberto García Martín-Caro Andrzej Wereszczyński Instanton corrections to the MSTB Kink mass Journal of High Energy Physics Solitons Monopoles and Instantons Nonperturbative Effects Field Theories in Lower Dimensions |
| title | Instanton corrections to the MSTB Kink mass |
| title_full | Instanton corrections to the MSTB Kink mass |
| title_fullStr | Instanton corrections to the MSTB Kink mass |
| title_full_unstemmed | Instanton corrections to the MSTB Kink mass |
| title_short | Instanton corrections to the MSTB Kink mass |
| title_sort | instanton corrections to the mstb kink mass |
| topic | Solitons Monopoles and Instantons Nonperturbative Effects Field Theories in Lower Dimensions |
| url | https://doi.org/10.1007/JHEP04(2025)173 |
| work_keys_str_mv | AT jarahevslin instantoncorrectionstothemstbkinkmass AT albertogarciamartincaro instantoncorrectionstothemstbkinkmass AT andrzejwereszczynski instantoncorrectionstothemstbkinkmass |