Spectroscopy of Spinons in Coulomb Quantum Spin Liquids
Spectroscopy of Spinons in Coulomb Quantum Spin Liquids
We calculate the effect of the emergent photon on threshold production of spinons in $U(1)$ Coulomb spin liquids such as quantum spin ice. The emergent Coulomb interaction modifies the threshold production cross-section dramatically, changing the weak turn-on expected from the density of states to an abrupt onset reflecting the basic …