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Enlarged Bound on the Measurability of Distances and Quantum -Poincarè Group
G. Amelino-Camelia
When quantum mechanical and general relativistic effects are taken into account in the analysis of distance measurements, one finds a measurability bound. I observe that some of th…
String-Inspired Gravity Coupled to Yang-Mills Fields
G. Amelino-Camelia, D. Bak, D. Seminara
String-inspired 1+1-dimensional gravity is coupled to Yang-Mills fields in the Cangemi-Jackiw gauge-theoretical formulation, based on the extended Poincaré group. A family of coupl…
Gravitational Dressing of Aharonov-Bohm Amplitudes
G. Amelino-Camelia, I. I. Kogan, R. J. Szabo
We investigate Aharonov-Bohm scattering in a theory in which charged bosonic matter fields are coupled to topologically massive electrodynamics and topologically massive gravity. W…
Simple GUTs
G. Amelino-Camelia
Together with some positive features, such as the constrained hypercharge assignments, grandunification models typically have some unwelcome aspects, mostly associated with the ric…
Disoriented Chiral Condensates in Hadron-Hadron Collisions
G. Amelino-Camelia, J. D. Bjorken, S. E. Larsson
We review recent progress in the description and understanding of disoriented chiral condensates. Certain important unsolved issues are underlined, and the preliminary results of o…
Calogero-Sutherland Particles as Quasisemions
G. Amelino-Camelia
The ultraviolet structure of the Calogero-Sutherland models is examined, and, in particular, semions result to have special properties. An analogy with ultraviolet structures known…
Non-trivial Infrared Structure in (2+1)-dimensional Quantum Electrodynamics
I. J. R. Aitchison, G. Amelino-Camelia, M. Klein-Kreisler +2
We show that the gauge-fermion interaction in multiflavour -dimensional quantum electrodynamics with a finite infrared cut-off is responsible for non-fermi liquid behaviour…
Conformal Dimensions from Topologically Massive Quantum Field Theory
G. Amelino-Camelia, I. I. Kogan, R. J. Szabo
We discuss the evaluation of observables in two-dimensional conformal field theory using the topological membrane description. We show that the spectrum of anomalous dimensions can…
Distance Measurement and Wave Dispersion in a Liouville-String Approach to Quantum Gravity
G. Amelino-Camelia, J. Ellis, N. E. Mavromatos +1
Within a Liouville approach to non-critical string theory, we discuss space-time foam effects on the propagation of low-energy particles. We find an induced frequency-dependent dis…
On the CJT Formalism in Multi-Field Theories
G. Amelino-Camelia
The issues that arise when using the Cornwall-Jackiw-Tomboulis formalism in multi-field theories are investigated. Particular attention is devoted to the interplay between temperat…
Limits on the Measurability of Space-time Distances in (the Semi-classical Approximation of) Quantum Gravity
G. Amelino-Camelia
By taking into account both quantum mechanical and general relativistic effects, I derive an equation that describes some limitations on the measurability of space-time distances.…
On Local Observations in Quantum Gravity
G. Amelino-Camelia
By taking into account both quantum mechanical and general relativistic effects, I derive an equation that describes limitations on the measurability of space-time distances as def…
On the Three-Anyon Harmonics
Giovanni Amelino-Camelia, Chaiho Rim
The 3-anyon problem is studied using a set of variables recently proposed in an anyon gauge analysis by Mashkevich, Myrheim, Olaussen, and Rietman (MMOR). Boundary conditions to be…