17 citations · 64 across the 12 of their papers we have counts for
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hep-th2014★ 6 cited
Cosmological Perturbations in Antigravity
Marius Oltean, Robert Brandenberger
We compute the evolution of cosmological perturbations in a recently proposed Weyl-symmetric theory of two scalar fields with oppositely-signed conformal couplings to Einstein grav…
hep-th2013★ 17 cited
Gravitational Waves from Preheating in M-flation
Amjad Ashoorioon, Brandon Fung, Robert B. Mann +2
Matrix inflation, or M-flation, is a string theory motivated inflationary model with three scalar field matrices and gauge fields in the adjoint representation of the $\mathbf{U}(N…
hep-th2011★ 6 cited
Lifshitz Solitons
Robert Mann, Luisa Pegoraro, Marius Oltean
We numerically obtain a class of soliton solutions for Einstein gravity in dimensions coupled to massive abelian gauge fields and with a negative cosmological constant with…