264 citations · 1.2k across the 21 of their papers we have counts for
4 papers · 1 filter
Localization of nonlocal theories
Gianluca Calcagni, Michele Montobbio, Giuseppe Nardelli
We show that a certain class of nonlocal scalar models, with a kinetic operator inspired by string field theory, is equivalent to a system which is local in the coordinates but non…
Route to nonlocal cosmology
Gianluca Calcagni, Michele Montobbio, Giuseppe Nardelli
An analytic approach to phenomenological models inspired by cubic string field theory is introduced and applied to some examples. We study a class of actions for a minimally couple…
Patch cosmology and noncommutative braneworlds
Gianluca Calcagni
We review extra-dimensional and 4D cosmological scenarios through the effective Friedmann evolution on a brane. Some features involving noncommutative geometry and scalar/tachyon s…
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…