2026 CAP Congress / Congrès de l'ACP 2026

Light-cones and State-space focusing in the Floquet TFIM

Not scheduled

2m

U. Ottawa - Learning Crossroads (CRX) Building

Poster Competition (Graduate Student) / Compétition affiches (Étudiant(e) 2e ou 3e cycle) Condensed Matter and Materials Physics / Physique de la matière condensée et matériaux (DCMMP-DPMCM) DCMMP Poster Session & Student Poster Competition | Session d'affiches DPMCM et concours d'affiches étudiantes

Speaker

Hung Nguyen (McMaster University)

Description

Periodically driven quantum spin chains provide a framework to study chaotic dynamics. We investigate this in the Floquet 1D transverse-field Ising model (Floquet TFIM) via numerical simulations, emphasizing space-time light-cone structure and wavefront interference, motivated by fronts noted in the quenched (non-kicked) TFIM. We introduce a periodic transverse-field kick to define a Floquet operator. We simulate stroboscopic dynamics from local initial states, tracking magnetization, connected correlators, and bipartite entanglement, along with spectral diagnostics of the Floquet unitary. We test when light-cone structure persists beyond integrable quenches, or is washed out by mixing, disorder, or finite size.