34 citations · 218 across the 21 of their papers we have counts for
21 papers
Aspects of supersymmetry breaking driven inflation in orbifold models
G. A. Diamandis, K. Kaskavelis, A. B. Lahanas +1
We consider gravitationally induced corrections to inflaton potentials driven by supersymmetry breaking in a five-dimensional supergravity, compactified on a orbifold.…
Multi-field inflation from a higher derivative N = 1 Supergravity model
G. A. Diamandis, B. C. Georgalas, K. Kaskavelis +1
We study the cosmological evolution of a N = 1 supergravity model, dual to a higher derivative supergravity model coupled to scalar fields so that in the Einstein frame the model i…
Deforming the Starobinsky model in ghost-free higher derivative supergravities
G. A. Diamandis, B. C. Georgalas, K. Kaskavelis +2
We consider higher derivative supergravities that are dual to ghost-free supergravity theories in the Einstein frame. The duality is implemented by deforming the Kähler funct…
Towards a formulation of supergravity
G. A. Diamandis, A. B. Lahanas, K. Tamvakis
The supersymmetric completion of gravity is known to be equivalent to standard supergravity coupled to two chiral supermultiples with a Kähler potential of the no-scale typ…
Inflation in supergravity with non-minimal superpotentials
G. A. Diamandis, B. C. Georgalas, K. Kaskavelis +3
We investigate the cosmological inflation in a class of supergravity models that are generalizations of non-supersymmetric models. Although such models have been extensively…
Six-dimensional origin of gravity mediated brane to brane supersymmetry breaking
G. A. Diamandis, B. C. Georgalas, P. Kouroumalou +1
Four dimensional supergravities may be the right framework to describe particle physics at low energies. Its connection to the underlying string theory can be implemented through h…