1.4k citations · 14.7k across the 377 of their papers we have counts for
19 papers · 1 filter
Constraining D-foam via the 21-cm Line
John Ellis, Nick E. Mavromatos, Dimitri V. Nanopoulos
We have suggested earlier that D-particles, which are stringy space-time defects predicted in brane-inspired models of the Universe, might constitute a component of dark matter, an…
A Novel Foamy Origin for Singlet Fermion Masses
John Ellis, Nick E. Mavromatos, Dimitri V. Nanopoulos
We show how masses for singlet fermions can be generated by interactions with a D-particle model of space-time foam inspired by brane theory. It has been shown previously by one of…
Comments on Graviton Propagation in Light of GW150914
John Ellis, Nick E. Mavromatos, Dimitri V. Nanopoulos
The observation of gravitational waves from the Laser Interferometer Gravitational-Wave Observatory (LIGO) event GW150914 may be used to constrain the possibility of Lorentz violat…
Liouville Cosmology at Zero and Finite Temperatures
J. Ellis, N. E. Mavromatos, M. Westmuckett +1
We discuss cosmology in the context of Liouville strings, characterized by a central-charge deficit Q^2, in which target time is identified with (the world-sheet zero mode of the)…
The String Coupling Accelerates the Expansion of the Universe
John Ellis, N. E. Mavromatos, D. V. Nanopoulos
Generic cosmological models in non-critical string theory have a time-dependent dilaton background at a late epoch. The cosmological deceleration parameter Q_0 is given by the squa…
Liouville Cosmology
John Ellis, N. E. Mavromatos, D. V. Nanopoulos
Liouville string theory is a natural framework for discussing the non-equilibrium evolution of the Universe. It enables non-critical strings to be treated in mathematically consist…