Nonstationary dark energy around a black hole

Galileon accretion

(2011) E. Babichev   PHYSICAL REVIEW D

A note on perfect scalar fields

(2010) Sanil Unnikrishnan et al.   PHYSICAL REVIEW D

Note on the equivalence of a barotropic perfect fluid with a k-essence scalar field

(2010) Frederico Arroja et al.   PHYSICAL REVIEW D

Stationary configurations imply shift symmetry: no Bondi accretion for quintessence/k-essence

(2009) Ratindranath Akhoury et al.   JOURNAL OF HIGH ENERGY PHYSICS

Ultrahard fluid and scalar field in the Kerr-Newman metric

(2008) E. Babichev et al.   PHYSICAL REVIEW D

k-Essence, superluminal propagation, causality and emergent geometry

(2008) Eugeny Babichev et al.   JOURNAL OF HIGH ENERGY PHYSICS