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astro-ph2006★ 7 cited
Inflation with large gravitational waves
Alexander Vikman
It is well known that in manifestly Lorentz invariant theories with nontrivial kinetic terms, perturbations around some classical backgrounds can travel faster than light. These ex…
hep-th2006★ 87 cited
Escaping from the black hole?
E. Babichev, V. Mukhanov, A. Vikman
We show that if there exists a special kind of Born-Infeld type scalar field, then one can send information from inside a black hole. This information is encoded in perturbations o…