On the mean-field and semiclassical limit from quantum $N$-body dynamics
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arXiv
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| Autores principales: | , , |
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| Formato: | Preprint |
| Publicado: |
2023
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| _version_ | 1866912456580792320 |
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| author | Chen, Xuwen Shen, Shunlin Zhang, Zhifei |
| author_facet | Chen, Xuwen Shen, Shunlin Zhang, Zhifei |
| contents | We study the mean-field and semiclassical limit of the quantum many-body dynamics with a repulsive $δ$-type potential $N^{3β}V(N^βx)$ and a Coulomb potential, which leads to a macroscopic fluid equation, the Euler-Poisson equation with pressure. We prove quantitative strong convergence of the quantum mass and momentum densities up to the first blow up time of the limiting equation. The main ingredient is a functional inequality on the $δ$-type potential for the almost optimal case $β\in(0,1)$, for which we give an analysis of the singular correlation structure between particles. |
| format | Preprint |
| id |
arxiv_https___arxiv_org_abs_2304_03447 |
| institution | arXiv |
| publishDate | 2023 |
| record_format | arxiv |
| spellingShingle | On the mean-field and semiclassical limit from quantum $N$-body dynamics Chen, Xuwen Shen, Shunlin Zhang, Zhifei Analysis of PDEs Mathematical Physics We study the mean-field and semiclassical limit of the quantum many-body dynamics with a repulsive $δ$-type potential $N^{3β}V(N^βx)$ and a Coulomb potential, which leads to a macroscopic fluid equation, the Euler-Poisson equation with pressure. We prove quantitative strong convergence of the quantum mass and momentum densities up to the first blow up time of the limiting equation. The main ingredient is a functional inequality on the $δ$-type potential for the almost optimal case $β\in(0,1)$, for which we give an analysis of the singular correlation structure between particles. |
| title | On the mean-field and semiclassical limit from quantum $N$-body dynamics |
| topic | Analysis of PDEs Mathematical Physics |
| url | https://arxiv.org/abs/2304.03447 |