Work

Sachdev-Ye-Kitaev Physics from the Hubbard Model: A Floquet-Engineering Approach

Year: 2026

Type: article

Abstract: The Sachdev-Ye-Kitaev (SYK) model has attracted widespread attention due to its relevance to diverse areas of physics, such as high temperature superconductivity, black holes, and quantum chaos. The model is, however, extremely challenging to realize experimentally. In this Letter, we show how a particular form of Floquet engineering, termed "kinetic driving," effectively eliminates single-particle processes and creates quasirandom all-to-all interactions when applied to models of Hubbard type. For the specific case of the Bose-Hubbard model, we explicitly verify that the driven system indeed reproduces SYK physics by direct comparison of the spectral form factor and out-of-time ordered correlation functions. Our findings indicate that a cold-atom realization of kinetic driving-achieved through modulation of hopping amplitudes in an optical lattice-offers a practical and accurate platform for quantum simulation of the SYK model.

Source: Physical Review Letters

DOI: 10.1103/r8zs-qvj3

Authors: Charles Creffield, Fernando Sols, Marco Schirò, Nathan Goldman