Hi all, Next week, Sanziana Stelea will talk about “Quantum simulations of lattice gauge theories with stabilizer constraints”. See below for the abstract. The talk will take place on Monday at 15:00 in HIT E 41.1. Best, Ladina %%%%%%%%% Title: Quantum simulations of lattice gauge theories with stabilizer constraints Abstract: Real-time dynamics of lattice gauge theories (LGTs) remain a major challenge in both high-energy and many-body physics, as classical numerical approaches become limited by the growth of entanglement during time evolution. In this talk, I will present a digital quantum simulation of a (2+1)D Z₂ lattice gauge theory with local gauge symmetry and dynamical Ising matter, implemented on superconducting quantum hardware. The studied Fradkin–Shenker model exhibits a rich phase structure and is related through duality to the surface-code model used in quantum error correction. Focusing on its confined regime, I will discuss the real-time dynamics of electric string excitations connecting matter charges. In particular, we observe signatures of plaquette-induced transverse string oscillations and resonant string breaking through matter pair creation. These processes are characterized through experimentally accessible observables measured directly on quantum hardware, providing qualitative insight into mechanisms associated with confinement physics in QCD (Quantum Chromodynamics). Beyond the physical dynamics, I will show how the local Z₂ gauge symmetry of the model can be exploited as a resource for error detection on noisy quantum hardware. The Gauss-law constraints naturally define local stabilizers that can be evaluated and post-selected directly from measured bitstrings, without additional ancilla qubits. Combined with minimal Clifford error mitigation, this approach enables the construction of improved estimators for physical observables. More generally, this work demonstrates how gauge symmetries can be leveraged as built-in error-detection mechanisms in quantum simulations of lattice gauge theories.