Observing quantum many-body scars in random quantum circuits

Understand

The Schwinger model describes quantum electrodynamics in 1+1-dimensions, it is a prototype for quantum chromodynamics, and its lattice version allows for a quantum link model description that can be simulated using modern quantum devices.

• In this work, we devise quantum simulations to investigate the dynamics of this model in its low dimensional form, where the gauge field degrees of freedom are described by spin 1/2 operators.
• We apply trotterization to write quantum circuits that effectively generate the evolution under the Schwinger model Hamiltonian.
• We consider both sequential circuits, with a fixed gate sequence, and randomized ones.