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Publications Influence

THE COVARIANT PHASE SPACE OF ASYMPTOTICALLY FLAT GRAVITATIONAL FIELDS

- A. Ashtekar, L. Bombelli, Oscar A. Reula
- Mathematics
- 1991

Publisher Summary This chapter discusses the covariant phase space of asymptotically flat gravitational fields and covariant constructions for field theories. In the case of general relativity,… Expand

149 12

DISCRETENESS WITHOUT SYMMETRY BREAKING: A THEOREM

- L. Bombelli, J. Henson, R. Sorkin
- Physics
- 1 May 2006

This paper concerns random sprinklings of points into Minkowski spacetime (Poisson processes). It proves that there exists no equivariant measurable map from sprinklings to spacetime directions (even… Expand

91 9- PDF

Testing general relativity with present and future astrophysical observations

- E. Berti, E. Barausse, +50 authors M. Zilhão
- Physics
- 28 January 2015

One century after its formulation, Einstein's general relativity (GR) has made remarkable predictions and turned out to be compatible with all experimental tests. Most of these tests probe the theory… Expand

588 8- PDF

Statistical Lorentzian geometry and the closeness of Lorentzian manifolds

- L. Bombelli
- Mathematics, Physics
- 15 February 2000

I introduce a family of closeness functions between causal Lorentzian geometries of finite volume and arbitrary underlying topology. When points are randomly scattered in a Lorentzian manifold, with… Expand

39 5- PDF

A New Measurement of Kaonic Hydrogen X-rays

- M. Bazzi, G. Beer, +34 authors J. Zmeskal
- Physics
- 16 May 2011

The KN system at threshold is a sensitive testing ground for low energy QCD, especially for the explicit chiral symmetry breaking. Therefore, we have measured the K-series x rays of kaonic hydrogen… Expand

226 3- PDF

Introduction of bosonic fields into causal set theory

- R. Sverdlov, L. Bombelli
- Mathematics
- 24 March 2011

We describe a framework for constructing Lagrangians for fields propagating on the background of a locally finite partially ordered set where the partial order corresponds to causal relations, a… Expand

5 3- PDF

Silicon Drift Detectors and CUBE Preamplifiers for High-Resolution X-ray Spectroscopy

- R. Quaglia, L. Bombelli, +6 authors C. Piemonte
- Physics
- IEEE Transactions on Nuclear Science
- 29 January 2015

In this work we present the results of the experimental characterization of Silicon Drift Detectors (SDDs) readout by CUBE preamplifiers for X-ray spectroscopy measurements. One specific goal of the… Expand

24 2

The origin of Lorentzian geometry

- L. Bombelli, D. Meyer
- Physics
- 6 November 1989

Abstract We investigate how a Lorentzian manifold can be reconstructed from a more fundamental structure, in the context of a proposal for a quantum theory of gravity. We first show that some… Expand

53 2

On energy in 5-dimensional gravity and the mass of the Kaluza-Klein monopole

- L. Bombelli, R. K. Koul, G. Kunstatter, J. Lee, R. Sorkin
- Physics
- 1987

Abstract We discuss the concept of energy in higher-dimensional gravity, with special attention given to the problem of the choice of a background. Three different approaches to the calculation of… Expand

28 2

Statistical geometry of random weave states

- L. Bombelli
- Physics, Mathematics
- 19 January 2001

I describe the first steps in the construction of semiclassical states for non-perturbative canonical quantum gravity using ideas from classical, Riemannian statistical geometry and results from… Expand

35 2- PDF