[Special NT Seminar] David Rogerson , Phase transitions in the 1 and 2 Flavor Massive Schwinger Model - Numerical Results and Quantum Circuits -

Wednesday May 7, 2025, 11:00 AM → 1:00 PM US/Eastern

CFNS Library

Quantum hardware holds the promise of enabling simulations of strongly correlated quantum field theories, such as lattice QCD, that are intractable on classical machines. As an initial step toward this long-term goal, the well-studied massive Schwinger model—quantum electrodynamics (QED) in 1+1 dimensions—has gained renewed attention. After discretizing the theory using Wilson or staggered fermions, the Schwinger model becomes a interesting subject of study for both quantum algorithms and classical tensor network simulations.

In this talk, I will review the phase diagram of the one- and two-flavor Schwinger model with theta=pi and present results obtained using classical tensor network techniques. These methods not only provide insights into the model’s non-perturbative features but also serve as a foundation for hybrid approaches. In particular, they enable the development of classically optimized quantum circuits, tailored for efficient execution on noisy intermediate-scale quantum (NISQ) devices.