Today's #arXivsummary: https://arxiv.org/abs/2302.06635 by Laumann & Moessner. Authors show that in quantum spin ice, the emergent magnetic charges of Maxwell electromagnetism carry native electric charge of the topological phase. A thermal gas of emergent magnetic charges are predicted to make an activated contribution to the optical conductivity at low temperatures. #CondMat #StrEl #arXiv_2302_06635