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Microcausality in Curved Space-Time
Sergei Dubovsky, Alberto Nicolis, Enrico Trincherini +1
It is well known that in Lorentz invariant quantum field theories in flat space the commutator of space-like separated local operators vanishes (microcausality). We provide two dif…
Bumpy black holes from spontaneous Lorentz violation
Sergei Dubovsky, Peter Tinyakov, Matias Zaldarriaga
We consider black holes in Lorentz violating theories of massive gravity. We argue that in these theories black hole solutions are no longer universal and exhibit a large number of…
A Measure of de Sitter Entropy and Eternal Inflation
Nima Arkani-Hamed, Sergei Dubovsky, Alberto Nicolis +2
We show that in any model of non-eternal inflation satisfying the null energy condition, the area of the de Sitter horizon increases by at least one Planck unit in each inflationar…
Quantum Horizons of the Standard Model Landscape
Nima Arkani-Hamed, Sergei Dubovsky, Alberto Nicolis +1
The long-distance effective field theory of our Universe--the Standard Model coupled to gravity--has a unique 4D vacuum, but we show that it also has a landscape of lower-dimension…