| Texto completo | |
| Autor(es): |
Andreanov, Alexei
;
Carrega, Matteo
;
Murugan, Jeff
;
Olle, Jan
;
Rosa, Dario
;
Shir, Ruth
Número total de Autores: 6
|
| Tipo de documento: | Artigo Científico |
| Fonte: | PHYSICAL REVIEW B; v. 111, n. 3, p. 9-pg., 2025-01-24. |
| Resumo | |
A deep understanding of the mechanisms underlying many-body quantum chaos is one of the big challenges in contemporary theoretical physics. We tackle this problem in the context of a set of perturbed quadratic SachdevYe-Kitaev (SYK) Hamiltonians defined on graphs. This allows us to disentangle the geometrical properties of the underlying single-particle problem and the importance of the interaction terms, showing that the former is the dominant feature ensuring the single-particle to many-body chaotic transition. Our results are verified numerically with state-of-the-art numerical techniques, capable of extracting eigenvalues in a desired energy window of very large Hamiltonians. Our approach essentially provides a new way of viewing many-body chaos from a single-particle perspective. (AU) | |
| Processo FAPESP: | 21/14335-0 - ICTP Instituto Sul-Americano para Física Fundamental: um centro regional para Física Teórica |
| Beneficiário: | Nathan Jacob Berkovits |
| Modalidade de apoio: | Auxílio à Pesquisa - Projetos Especiais |
| Processo FAPESP: | 23/11832-9 - Sistemas quânticos de muitos corpos: do caos quântico até tecnologias quânticas |
| Beneficiário: | Dario Rosa |
| Modalidade de apoio: | Auxílio à Pesquisa - Jovens Pesquisadores |