Magnetoelectricity in two-dimensional materials by Yìlè Yīng, Ulrich Zülicke

“…For the purpose of this discussion, the image-charge method familiar from electrostatics is extended to solve the boundary-value problem for a magnetoelectric medium in the finite-width slab geometry using image dyons, i.e. point objects having both electric and magnetic charges. …”
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Theory of oblique topological insulators by Benjamin Moy, Hart Goldman, Ramanjit Sohal, Eduardo Fradkin

“…Oblique TIs arise when dyons—bound states of electric charges and monopoles—condense, leading to FTI phases characterized by topological order, emergent one-form symmetries, and gapped boundary states not realizable in 2+1-D alone. …”
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Quantum black hole entropy, localization and the stringy exclusion principle by João Gomes

“…Our method breaks down precisely when mock-modular effects are expected in the entropy of one-quarter BPS dyons and we comment upon this. Furthermore, we mention possible applications of these results, including an exact formula for the entropy of four dimensional N=2 $$ \mathcal{N}=2 $$ black holes.…”
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Magnetic monopoles with no strings attached: a portal to the dark side of dual electrodynamics by Jan Govaerts

“…This generalised Lorentz force involves a single real and new coupling constant of unknown value, without the requirement of a Dirac–Schwinger–Zwanziger quantisation condition for electric and magnetic charges of dyons. A physical consequence for SO(2) dual electrodynamics of this coupling constant if nonvanishing, is to open a channel, or portal between the otherwise mutually totally “dark” sectors of electric and magnetic charges for electromagnetic interactions.…”
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