University of Pisa

output

19922026

most citedObservation of Gravitational Waves from a Binary Black Hole Merger

14.2k citations

researchers with a paper here

Counting papers with at most 25 authors, so collaboration author lists do not stand in for the people here.

collaborating institutions

Showing 1992Show all

12 papers · 1 filter

hep-th1992★ 19 cited

Closed time like curve and the energy condition in 2+1 dimensional gravity

P. Menotti, D. Seminara

We consider gravity in 2+1 dimensions in presence of extended stationary sources with rotational symmetry. We prove by direct use of Einstein's equations that if i) the energy mome…

hep-lat1992★ 22 cited

Possible Failure of Asymptotic Freedom in Two-Dimensional $R P^{2}$ and $R P^{3}$ $σ$ -Models

S. Caracciolo, R. G. Edwards, A. Pelissetto +1

We have simulated the two-dimensional $R P^{2}$ and $R P^{3}$ $σ$ -models, at correlation lengths up to about 220 (resp.\ 30), using a Wolff-type embedding algorithm. We see no evidence o…

hep-lat1992★ 3 cited

Three-Loop Results on the Lattice

B. Alles, M. Campostrini, A. Feo +1

We present some new three-loop results in lattice gauge theories, for the Free Energy and for the Topological Susceptibility. These results are an outcome of a scheme which we are…

hep-lat1992★ 23 cited

Random Walks with Long-Range Self-Repulsion on Proper Time

S. Caracciolo, G. Parisi, A. Pelissetto

We introduce a model of self-repelling random walks where the short-range interaction between two elements of the chain decreases as a power of the difference in proper time. Analy…

hep-lat1992★ 1 cited

Topological susceptibility and string tension in CP(N-1) models

Massimo Campostrini, Paolo Rossi, Ettore Vicari

We investigate the features of $CP^{N - 1}$ models concerning confinement and topology. In order to study the approach to the large- $N$ asymptotic regime, we determine the topo…

hep-lat1992

$1/ N$ Expansion of Two-Dimensional Models in the Scaling Region

Massimo Campostrini, Paolo Rossi

The main technical and conceptual features of the lattice $1/ N$ expansion in the scaling region are discussed in the context of a two-parameter two-dimensional spin model interpola…

hep-lat1992

Scaling and asymptotic scaling in two-dimensional $C P^{N - 1}$ models

Massimo Campostrini, Paolo Rossi, Ettore Vicari

Two-dimensional $C P^{N - 1}$ models are investigated by Monte Carlo methods on the lattice, for values of $N$ ranging from 2 to 21. Scaling and rotation invariance are studied by com…

hep-th1992★ 6 cited

The radial gauge propagators in quantum gravity

P. Menotti, G. Modanese, D. Seminara

We give a general procedure for extracting the propagators in gauge theories in presence of a sharp gauge fixing and we apply it to derive the propagators in quantum gravity in the…

hep-lat1992★ 38 cited

Topological susceptibility and string tension in the lattice CP(N) models

M. Campostrini, P. Rossi, E. Vicari

In the lattice CP(N) models we studied the problems related to the measure of the topological susceptibility and the string tension . We perfomed numerical simulations at N=4 and N…

hep-ph1992★ 173 cited

Radiative Correction Effects of a Very Heavy Top

Riccardo Barbieri, Matteo Beccaria, Paolo Ciafaloni +2

If the top is very heavy, m_t >> M_Z, the dominant radiative correction effects in all electroweak precision tests can be exactly characterized in terms of two quantities, the rho-…

hep-lat1992★ 73 cited

Wolff-Type Embedding Algorithms for General Nonlinear $σ$ -Models

Sergio Caracciolo, Robert G. Edwards, Andrea Pelissetto +1

We study a class of Monte Carlo algorithms for the nonlinear $σ$ -model, based on a Wolff-type embedding of Ising spins into the target manifold $M$ . We argue heuristically that, at…

hep-lat1992★ 6 cited

Dynamic Critical Behaviour of Wolff's Algorithm for $R P^{N}$ $σ$ -Models

S. Caracciolo, R. G. Edwards, A. Pelissetto +1

We study the performance of a Wolff-type embedding algorithm for $R P^{N}$ $σ$ -models. We find that the algorithm in which we update the embedded Ising model à la Swendsen-Wang has cr…