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Three-dimensional asymptotically flat Einstein-Maxwell theory
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Three-dimensional Einstein-Maxwell theory with non trivial asymptotics at null infinity is solved. The symmetry algebra is a Virasoro-Kac-Moody type algebra that extends the bms3 algebra of the purely gravitational case. Solution space involves logarithms and provides a tractable example of a polyhomogeneous solution space. The associated surface charges are non-integrable and non-conserved due to the presence of electromagnetic news. As in the four dimensional purely gravitational case, their algebra involves a field-dependent central charge.
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Cited by 3 Pith papers
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Asymptotically-FLRW$_3$ spacetimes
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Soft gravitons in three dimensions
Three-dimensional flat-space gravity, despite having no propagating gravitons, exhibits an infrared triangle: a soft graviton theorem, BMS3 asymptotic symmetries, and gravitational memory effects, all equivalent throu...
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Asymptotic Structure of Einstein-Maxwell-Dilaton Theory and Its Five Dimensional Origin
The asymptotic solution space and mass-loss formula for Einstein-Maxwell-dilaton theory are derived, and the Kaluza-Klein case is shown to match five-dimensional pure Einstein gravity.
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