Year: 2026
Type: article
Abstract: All-to-all interacting and disordered many-body systems are notoriously hard to simulate on quantum platforms, as interactions are commonly mediated by auxiliary degrees of freedom that lower the amount of disorder, introducing undesired correlations. In this work, we show how a Trotterization scheme can be effectively utilized to densify the disorder of the model. In particular, we study the statistical properties of the resulting model, as well as Trotterization errors in the simulation that affect the time evolution and dynamical observables. As a concrete example, we propose an implementation via a single-mode cavity QED platform of the complex Sachdev-Ye-Kitaev model. We analyze several features of the effective model, such as the distribution of the effective couplings, the number of interacting sites, state preparation, and the behavior of quantum chaos probes. We conclude this work with a detailed investigation of the robustness of our findings against dissipation, both analytically and numerically.
Source: Physical Review A
DOI: 10.1103/74wt-dwdz
Language: English
Topic: Quantum many-body systems
Subfield: Atomic and Molecular Physics, and Optics
Field: Physics and Astronomy
Domain: Physical Sciences
Open Access status: green
Funders: National Science Foundation, Aspen Center for Physics, National Centres of Competence in Research SwissMAP, European Commission, Schweizerischer Nationalfonds zur Förderung der Wissenschaftlichen Forschung, Fondazione Bruno Kessler, Università degli Studi di Trento, Fondazione Cassa Di Risparmio Di Trento E Rovereto, Provincia Autonoma di Trento, QuantERA, Horizon 2020 Framework Programme, HORIZON EUROPE Framework Programme, Staatssekretariat für Bildung, Forschung und Innovation, Nuclear Physics
Awards: G1171162939, NExt level Quantum information processing for Science and Technology, G210708782, G2595738051, G3278703066, G3744034657, G4359800586, G4829368548, G5271502856, NCCR SwissMAP: The Mathematics of Physics, G575169067, QuantERA II ERA-NET Cofund in Quantum Technologies, G6135439503, Programs on Critical Problems in Physics, Astrophysics and Biophysics at the Aspen Center for Physics, G8362900132, G984966428
OpenAlex ID: W4417464186