Concentration of the complexity of spherical pure $p$-spin models at arbitrary energies
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arXiv
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| Natura: | Preprint |
| Pubblicazione: |
2021
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| author | Subag, Eliran Zeitouni, Ofer |
| author_facet | Subag, Eliran Zeitouni, Ofer |
| contents | We consider critical points of the spherical pure $p$-spin spin glass model with Hamiltonian $H_{N}\left(\boldsymbolσ\right)=\frac{1}{N^{\left(p-1\right)/2}}\sum_{i_{1},...,i_{p}=1}^{N}J_{i_{1},...,i_{p}}σ_{i_{1}}\cdotsσ_{i_{p}}$, where $\boldsymbolσ=\left(σ_{1},...,σ_{N}\right)\in \mathbb{S}^{N-1}:=\left\{ \boldsymbolσ\in\mathbb{R}^{N}:\,\left\Vert \boldsymbolσ\right\Vert _{2}=\sqrt{N}\right\} $ and $J_{i_{1},...,i_{p}}$ are i.i.d standard normal variables. Using a second moment analysis, we prove that for $p\geq 32$ and any $E>-E_\infty$, where $E_\infty$ is the (normalized) ground state, the ratio of the number of critical points $\boldsymbolσ$ with $H_N(\boldsymbolσ)\leq NE$ and its expectation asymptotically concentrates at $1$. This extends to arbitrary $E$ a similar conclusion of [Sub17a]. |
| format | Preprint |
| id |
arxiv_https___arxiv_org_abs_2109_03163 |
| institution | arXiv |
| publishDate | 2021 |
| record_format | arxiv |
| spellingShingle | Concentration of the complexity of spherical pure $p$-spin models at arbitrary energies Subag, Eliran Zeitouni, Ofer Probability We consider critical points of the spherical pure $p$-spin spin glass model with Hamiltonian $H_{N}\left(\boldsymbolσ\right)=\frac{1}{N^{\left(p-1\right)/2}}\sum_{i_{1},...,i_{p}=1}^{N}J_{i_{1},...,i_{p}}σ_{i_{1}}\cdotsσ_{i_{p}}$, where $\boldsymbolσ=\left(σ_{1},...,σ_{N}\right)\in \mathbb{S}^{N-1}:=\left\{ \boldsymbolσ\in\mathbb{R}^{N}:\,\left\Vert \boldsymbolσ\right\Vert _{2}=\sqrt{N}\right\} $ and $J_{i_{1},...,i_{p}}$ are i.i.d standard normal variables. Using a second moment analysis, we prove that for $p\geq 32$ and any $E>-E_\infty$, where $E_\infty$ is the (normalized) ground state, the ratio of the number of critical points $\boldsymbolσ$ with $H_N(\boldsymbolσ)\leq NE$ and its expectation asymptotically concentrates at $1$. This extends to arbitrary $E$ a similar conclusion of [Sub17a]. |
| title | Concentration of the complexity of spherical pure $p$-spin models at arbitrary energies |
| topic | Probability |
| url | https://arxiv.org/abs/2109.03163 |