Interfacing Spins with Photons for Quantum Simulation and Quantum Control
Coupling many atoms to a single mode of light offers an efficient means of spreading quantum information across an extended many-body system. In ongoing experiments, we are harnessing photons in an optical cavity to mediate flip-flop interactions among distant spins in a cloud of rubidium atoms. Such interactions can enable quantum simulations of exotic Hamiltonians featuring non-local hopping of strongly interacting bosons, which may ultimately shed light on fundamental bounds in quantum information scrambling. I will also touch on complementary prospects in cavity-aided quantum control, focusing on a robust and versatile scheme for “painting” non-classical collective spin states using a single photon as a “brush”.