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Potential Sensitivity of Gamma-Ray Burster Observations to Wave Dispersion in Vacuo
G. Amelino-Camelia, John Ellis, N. E. Mavromatos +2
The recent confirmation that at least some gamma-ray bursters (GRBs) are indeed at cosmological distances raises the possibility that observations of these could provide interestin…
T duality for boundary-non-critical strings
G. Amelino-Camelia, N. E. Mavromatos
Recent work on the action of T duality on Dirichlet-branes is generalized to the case in which the open string satisfies boundary conditions that are neither Neumann nor Dirichlet.…
kappa-Deformed Covariant Phase Space and Quantum-Gravity Uncertainty Relations
Giovanni Amelino-Camelia, Jerzy Lukierski, Anatol Nowicki
We describe the deformed covariant phase space corresponding to the so-called kappa-deformation of D=4 relativistic symmetries, with quantum ``time'' coordinate and Heisenberg alge…
Non-trivial Infrared Structure in (2+1)-Dimensional Quantum Electrodynamics and Non-Fermi Liquid Behaviour
N. E. Mavromatos
I review recent work on the infrared structure of (2+1)-dimensional Abelian gauge theories and their application to condensed matter physics. In particular, within a large-N Schwin…
Thermal Effective Potential of the O(N) Linear sigma Model
G. Amelino-Camelia
The finite-temperature effective potential of the O(N) linear σmodel is studied, with emphasis on the implications for the investigation of hot hadron dynamics. The contributions f…
KPZ Formulas for Weyl-Invariant Induced Gravity and Topologically Massive Gravity
G. Amelino-Camelia
I discuss the applicability in Weyl-invariant induced gravity and topologically massive gravity of certain formulas originally derived by Knizhnik, Polyakov, and Zamolodchikov in t…
On the Space-Time Uncertainty Relations of Liouville Strings and D Branes
G. Amelino-Camelia, J. Ellis, N. E. Mavromatos +1
Within a Liouville approach to non-critical string theory, we argue for a non-trivial commutation relation between space and time observables, leading to a non-zero space-time unce…