Speaker
Description
Quantum simulations of lattice gauge theories are typically performed in the
Hamiltonian formulation of the theory. We briefly discuss the two
state-of-the-art approaches for digital quantum simulations, quantum
annealing and universal gate-based quantum computing. While the quantum annealer acts as
a laboratory for toy models e.g. solving for the ground state or dynamics of small systems -
universal gate-based quantum computing promises to have the right resource
scaling with system size. In particular, by employing variational quantum algorithms, the
latter offers the possibility to study lattice gauge theories coupled to
matter in the T-mu plane, for small system sizes on currently available
hardware. As a simple illustration, we present work currently being done on Z_2 lattice gauge theory.
