76 citations
3 papers
hep-th2004
Braneworld cosmology almost without branes
Gianluca Calcagni
We review some general aspects of braneworld cosmologies in which an inflationary period driven by a scalar field confined on the brane is described by a nonstandard effective Frie…
astro-ph2004★ 76 cited
Observational constraints on patch inflation in noncommutative spacetime
Gianluca Calcagni, Shinji Tsujikawa
We study constraints on a number of patch inflationary models in noncommutative spacetime using a compilation of recent high-precision observational data. In particular, the four-d…
hep-ph2004★ 16 cited
Consistency relations and degeneracies in (non)commutative patch inflation
Gianluca Calcagni
The consistency equations of patch inflation are considered in a next-to-leading-order slow-roll (SR) expansion. Some general aspects of braneworld degeneracy are pointed out, both…