activity
20042010
most citedLorentz-violating massive gauge and gravitational fields

52 citations · 139 across the 8 of their papers we have counts for

collaborators
Showing 2010Show all

2 papers · 1 filter

hep-th2010★ 1 cited

Dynamical Four-Form Fields

Ufuk Aydemir, Luca Grisa, Lorenzo Sorbo

We present an example of a gauge-invariant Lagrangian that contains four derivatives and describes one massive, non-ghostlike, degree of freedom.

astro-ph.CO2010

Tachyonic Quintessence and a Preferred Direction in the Sky

Luca Grisa, Lorenzo Sorbo

We show that quintessence, when it is described by a tachyonic field, can amplify a tiny primordial gradient generating a preferred direction in the sky. In its simplest realizatio…