Tuning and interfacing emergent QED in quantum spin ice

When contrasted with ordinary quantum electrodynamics, the QED that emerges in a class of systems known as quantum spin ices presents notable challenges -- due to its inherently uneasy energy scales, with the monopoles lower in energy than the electric charges -- but also unique opportunities due to its high level of tuneability. In this talk we will discuss some of the latest tuning knobs and phenomena that result from them, in the context of disordered Pr lattices, applied fields in dipolar-octupolar Ce compounds, and the interplay between itinerant electrons and localised moments in iridates. While definitive confirmation of a quantum spin ice material remains an active quest in the field, tuneability offers several promising directions to build more and more convincing collective signatures.