Two dimensional NLS ground states with attractive Coulomb potential and point interaction
Fuente:
arXiv
Salvato in:
| Autori principali: | , |
|---|---|
| Natura: | Preprint |
| Pubblicazione: |
2023
|
| Soggetti: | |
| Accesso online: | |
| Tags: |
Aggiungi Tag
Nessun Tag, puoi essere il primo ad aggiungerne!!
|
| _version_ | 1866912232400486400 |
|---|---|
| author | Boni, Filippo Gallone, Matteo |
| author_facet | Boni, Filippo Gallone, Matteo |
| contents | We study the existence and the properties of ground states at fixed mass for a focusing nonlinear Schrödinger equation in dimension two with a point interaction, an attractive Coulomb potential and a nonlinearity of power type. We prove that for any negative value of the Coulomb charge, for any positive value of the mass and for any L$^2$-subcritical power nonlinearity, such ground states exist and exhibit a logarithmic singularity where the interaction is placed. Moreover, up to multiplication by a phase factor, they are positive, radially symmetric and decreasing. An analogous result is obtained also for minimizers of the action restricted to the Nehari manifold, getting the existence also in the L$^2$-critical and supercritical cases. |
| format | Preprint |
| id |
arxiv_https___arxiv_org_abs_2304_13629 |
| institution | arXiv |
| publishDate | 2023 |
| record_format | arxiv |
| spellingShingle | Two dimensional NLS ground states with attractive Coulomb potential and point interaction Boni, Filippo Gallone, Matteo Analysis of PDEs Mathematical Physics We study the existence and the properties of ground states at fixed mass for a focusing nonlinear Schrödinger equation in dimension two with a point interaction, an attractive Coulomb potential and a nonlinearity of power type. We prove that for any negative value of the Coulomb charge, for any positive value of the mass and for any L$^2$-subcritical power nonlinearity, such ground states exist and exhibit a logarithmic singularity where the interaction is placed. Moreover, up to multiplication by a phase factor, they are positive, radially symmetric and decreasing. An analogous result is obtained also for minimizers of the action restricted to the Nehari manifold, getting the existence also in the L$^2$-critical and supercritical cases. |
| title | Two dimensional NLS ground states with attractive Coulomb potential and point interaction |
| topic | Analysis of PDEs Mathematical Physics |
| url | https://arxiv.org/abs/2304.13629 |