85 citations · 1.5k across the 81 of their papers we have counts for
7 papers · 1 filter
Limitations of Radar Coordinates
Donato Bini, Luca Lusanna, Bahram Mashhoon
The construction of a radar coordinate system about the world line of an observer is discussed. Radar coordinates for a hyperbolic observer as well as a uniformly rotating observer…
The Physical Role of Gravitational and Gauge Degrees of Freedom in General Relativity - II: Dirac versus Bergmann observables and the Objectivity of Space-Time
Luca Lusanna, Massimo Pauri
(abridged)The achievements of the present work include: a) A clarification of the multiple definition given by Bergmann of the concept of {\it (Bergmann) observable. This clarifica…
The Chrono'Geometrical Structure of Special and General Relativity: Towards a Background-Independent Description of the Gravitational Field and Elementary Particles
Luca Lusanna
Since the main open problem of contemporary physics is to find a unified description of the four interactions, we present a possible scenario which, till now only at the classical…
The Physical Role of Gravitational and Gauge Degrees of Freedom in General Relativity - I: Dynamical Synchronization and Generalized Inertial Effects
L. Lusanna, M. Pauri
This is the first of a couple of papers in which, by exploiting the capabilities of the Hamiltonian approach to general relativity, we get a number of technical achievements that a…
Multipolar Expansions for Closed and Open Systems of Relativistic Particles
D. Alba, L. Lusanna, M. Pauri
Dixon's multipoles for a system of N relativistic positive-energy scalar particles are evaluated in the rest-frame instant form of dynamics. The Wigner hyper-planes (intrinsic rest…
On the Anticipatory Aspects of the Four Interactions: what the Known Classical and Semi-Classical Solutions Teach us
Luca Lusanna
The four (electro-magnetic, weak, strong and gravitational) interactions are described by singular Lagrangians and by Dirac-Bergmann theory of Hamiltonian constraints. As a consequ…