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D-particles and the localization limit in quantum gravity
Giovanni Amelino-Camelia, Luisa Doplicher
Some recent studies of the properties of D-particles suggest that in string theory a rather conventional description of spacetime might be available up to scales that are significa…
Phenomenology of Doubly Special Relativity
Giovanni Amelino-Camelia, Jerzy Kowalski-Glikman, Gianluca Mandanici +1
Investigations of the possibility that some novel ``quantum" properties of spacetime might induce a modification dispersion relation focused at first on scenarios with Planck-scale…
Planck-scale structure of spacetime and some implications for astrophysics and cosmology
Giovanni Amelino-Camelia
I briefly review some scenarios for the role of the Planck length in quantum gravity. In particular, I examine the differences between the schemes in which quantum gravity is expec…
Quantum Gravity Phenomenology
Giovanni Amelino-Camelia
I give a brief non-technical review of "Quantum Gravity Phenomenology" and in particular I describe some studies which should soon allow to establish valuable data-based constraint…
The three perspectives on the quantum-gravity problem and their implications for the fate of Lorentz symmetry
Giovanni Amelino-Camelia
Each approach to the quantum-gravity problem originates from expertise in one or another area of theoretical physics. The particle-physics perspective encourages one to attempt to…
Fundamental physics in space: a Quantum-Gravity perspective
Giovanni Amelino-Camelia
I consider the possibility that space experiments be used to search for quantum properties of spacetime. On the basis of recent quantum-gravity results, I argue that insight on som…
Implications of Spacetime Quantization for the Bahcall-Waxman Neutrino Bound
Giovanni Amelino-Camelia, Michele Arzano, Y. Jack NG +2
There is growing interest in quantum-spacetime models in which small departures from Lorentz symmetry are governed by the Planck scale. In particular, several studies have consider…
Proposal of a second generation of quantum-gravity-motivated Lorentz-symmetry tests: sensitivity to effects suppressed quadratically by the Planck scale
Giovanni Amelino-Camelia
Over the last few years the study of possible Planck-scale departures from classical Lorentz symmetry has been one of the most active areas of quantum-gravity research. We now have…
Quantum symmetry, the cosmological constant and Planck scale phenomenology
Giovanni Amelino-Camelia, Lee Smolin, Artem Starodubtsev
We present a simple algebraic argument for the conclusion that the low energy limit of a quantum theory of gravity must be a theory invariant, not under the Poincare group, but und…
Quantum-gravity-motivated Lorentz-symmetry tests with laser interferometers
Giovanni Amelino-Camelia, Claus Lammerzahl
We consider the implications for laser interferometry of the quantum-gravity-motivated modifications in the laws of particle propagation, which are presently being considered in at…