Confinement and entanglement dynamics on a digital quantum computer

Confinement describes the phenomenon when attraction between two particles grows with their distance, most prominently found in quantum chromodynamics (QCD) quarks. In condensed matter physics, confinement can appear spin chains, for example, one dimensional transverse field Ising model (TFIM) an additional longitudinal field, famously observed material cobalt niobate or optical lattices. Here, we establish that state-of-the-art computers have reached simulation capabilities to explore physics chains. We report quantitative signatures of TFIM on IBM computer via distinct velocities information propagation from domain walls and mesonic bound states. also find induced slow down entanglement spreading by implementing randomized measurement protocols second order Renyi entropy. Our results are a crucial step probing non-perturbative interacting phenomena digital beyond classical hardware.