Spontaneous symmetry breaking induced by nonlinear interaction in a coupler supported by fractional diffraction
Fuente:
arXiv
Salvato in:
| Autori principali: | , |
|---|---|
| Natura: | Preprint |
| Pubblicazione: |
2024
|
| Soggetti: | |
| Accesso online: | |
| Tags: |
Aggiungi Tag
Nessun Tag, puoi essere il primo ad aggiungerne!!
|
| _version_ | 1866929561310068736 |
|---|---|
| author | Santos, Mateus C. P. dos Cardoso, Wesley B. |
| author_facet | Santos, Mateus C. P. dos Cardoso, Wesley B. |
| contents | In this paper we introduce a one-dimensional model of coupled fractional nonlinear Schrödinger equations with a double-well potential applied to one component. This study examines ground state (GS) solitons, observing spontaneous symmetry breaking (SSB) in both the actuated field and the partner component due to linear coupling. Numerical simulations reveal symmetric and asymmetric profiles arising from a slightly asymmetric initial condition. Asymmetry is influenced by nonlinearities, potential depth, and coupling strength, with self-focusing systems favoring greater asymmetry. Fractional diffraction affects the amplitude and localization of symmetric profiles and the stability of asymmetric ones. We identify critical Lévy index values for generating coupled GS solitons. Stability analysis of unstable, centrally asymmetric GS solitons demonstrates oscillatory dynamics, providing new insights into SSB in fractional systems and half-trapped solitons. |
| format | Preprint |
| id |
arxiv_https___arxiv_org_abs_2410_20201 |
| institution | arXiv |
| publishDate | 2024 |
| record_format | arxiv |
| spellingShingle | Spontaneous symmetry breaking induced by nonlinear interaction in a coupler supported by fractional diffraction Santos, Mateus C. P. dos Cardoso, Wesley B. Pattern Formation and Solitons Quantum Gases Optics In this paper we introduce a one-dimensional model of coupled fractional nonlinear Schrödinger equations with a double-well potential applied to one component. This study examines ground state (GS) solitons, observing spontaneous symmetry breaking (SSB) in both the actuated field and the partner component due to linear coupling. Numerical simulations reveal symmetric and asymmetric profiles arising from a slightly asymmetric initial condition. Asymmetry is influenced by nonlinearities, potential depth, and coupling strength, with self-focusing systems favoring greater asymmetry. Fractional diffraction affects the amplitude and localization of symmetric profiles and the stability of asymmetric ones. We identify critical Lévy index values for generating coupled GS solitons. Stability analysis of unstable, centrally asymmetric GS solitons demonstrates oscillatory dynamics, providing new insights into SSB in fractional systems and half-trapped solitons. |
| title | Spontaneous symmetry breaking induced by nonlinear interaction in a coupler supported by fractional diffraction |
| topic | Pattern Formation and Solitons Quantum Gases Optics |
| url | https://arxiv.org/abs/2410.20201 |