1.
Phys Rev Lett
; 130(23): 237103, 2023 Jun 09.
Artigo
em Inglês
| MEDLINE
| ID: mdl-37354403
RESUMO
We calculate the average number of critical points N[over ¯] of the energy landscape of a many-body system with disordered two-body interactions and a weak on-site potential. We find that introducing a weak nonlinear on-site potential dramatically increases N[over ¯] to exponential in system size and give a complete picture of the organization of critical points. Our results extend solvable spin-glass models to physically more realistic models and are of relevance to glassy systems, nonlinear oscillator networks, and many-body interacting systems.