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Towards thermodynamics of universal horizons in Einstein-æther theory
Per Berglund, Jishnu Bhattacharyya, David Mattingly
Holography grew out of black hole thermodynamics, which relies on the causal structure and general covariance of general relativity. In Einstein-æther theory, a generally covariant…
D-brane instantons on non-Spin cycles
Per Berglund, Iñaki García-Etxebarria
We show that non-Spin cycles in type IIB Calabi-Yau orientifold compactifications with vanishing B field naturally support orientifold-invariant D-brane instantons. These instanton…
Mechanics of universal horizons
Per Berglund, Jishnu Bhattacharyya, David Mattingly
Modified gravity models such as Hořava-Lifshitz gravity or Einstein-æther theory violate local Lorentz invariance and therefore destroy the notion of a universal light cone. Despit…