6 papers
Mass-Varying Neutrinos from an Inverse Symmetron
Mainak Baidya, Ãyvind Christiansen, Vitor da Fonseca +2
Neutrinos enter cosmology in different ways and are constrained by distinct observational probes across different epochs: as a relativistic species at high redshift, as a massive b…
Charging Across the Phantom Divide with Modified Gravity
Rodrigo Calderon, Eric V. Linder
Cosmology where the effective dark energy crosses can be realized in Horndeski gravity with shift symmetric terms plus a linear potential. We highlight the special role of t…
Self-Reflection in a Moving Mirror
Michael R. R. Good, Eric V. Linder
We present an analytic flat-spacetime accelerating boundary analog of Hawking-type emission that possesses infinite asymptotic acceleration (and radial acceleration in the black ho…
Particle creation from entanglement entropy
Michael R. R. Good, Evgenii Ievlev, Eric V. Linder
We investigate how entanglement entropy can drive particle creation, deriving explicit relations between entropy and the radiated particle spectrum, the total number of particles,…
Through the Looking-Glass, and What AdS Found There: quantum particle production with a Whittaker spectrum
Michael R. R. Good, Eric V. Linder
Parity-inverted anti-de Sitter space -- ``flipped AdS'' -- is studied through the accelerating boundary correspondence of a moving mirror trajectory. The particle production exhibi…
Cosmic Acceleration from Nothing
Michael R. R. Good, Eric V. Linder
We demonstrate that if the universe started as a vacuum fluctuation rather than from a singular Big Bang state, the universe must have a late-time cosmic acceleration. This is requ…