Istituto Nazionale di Fisica Nucleare, Sezione di Pisa

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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.

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Showing 1996 · hep-latShow all

22 papers · 2 filters

hep-lat1996★ 87 cited

Light Quenched Hadron Spectrum and Decay Constants on different Lattices

C. R. Allton, V. Gimenez, L. Giusti +1

In this paper we study O(2000) (quenched) lattice configurations from the APE collaboration, for different lattice volumes and for 6.0 \le beta \le 6.4 using both the Wilson and th…

hep-lat1996★ 10 cited

Comparing Different Improvement Programs for the N-Vector Model

Sergio Caracciolo, Andrea Pelissetto

We discuss the connection between various types of improved actions in the context of the two-dimensional sigma-model. We also discuss spectrum-improved actions showing that these…

hep-lat1996★ 7 cited

Topological charge on the lattice: a field theoretical view of the geometrical approach

Leonardo Rastelli, Paolo Rossi, Ettore Vicari

We construct sequences of ``field theoretical'' (analytical) lattice topological charge density operators which formally approach geometrical definitions in 2-d $C P^{N - 1}$ models a…

hep-lat1996★ 37 cited

The three-loop beta function in SU(N) lattice gauge theories

B. Alles, A. Feo, H. Panagopoulos

We calculate the third coefficient of the lattice $β$ function in pure Yang-Mills theory. We make use of a computer code for solving perturbation theory analytically on the lattice…

hep-lat1996★ 2 cited

Light Quenched Hadron Spectrum and Decay Constants on different Lattices

C. R. Allton, V. Gimenez, L. Giusti +1

We present a study of $O (2000)$ (quenched) lattice configurations from the APE collaboration, for $6.0 \leq β \leq 6.4$ using both the Wilson and the SW-Clover fermion action. We…

hep-lat1996★ 1 cited

The 3-loop Beta Function of QCD

B. Alles, C. Christou, A. Feo +2

Using the background field technique, we calculate the 3-loop beta function of lattice $S U (N)$ gauge theories. In the pure gluonic case, we present our results, comparing to those…

hep-lat1996★ 98 cited

Hybrid Monte Carlo and topological modes of full QCD

B. Allés, G. Boyd, M. D'Elia +2

We investigate the performance of the hybrid Monte Carlo algorithm, the standard algorithm used for lattice QCD simulations involving fermions, in updating non-trivial global topol…

hep-lat1996★ 1 cited

Condensation of vortices in the X-Y model in 3d: a disorder parameter

G. Di Cecio, A. Di Giacomo, G. Paffuti +1

A disorder parameter is constructed which signals the condensation of vortices. The construction is tested by numerical simulations on lattice.

hep-lat1996★ 14 cited

Field strength correlators in QCD at zero and non-zero temperature

Adriano Di Giacomo, Enrico Meggiolaro, Haralambos Panagopoulos

We study, by numerical simulations on a lattice, the behaviour of the gauge--invariant field strength correlators in QCD both at zero temperature, down to a distance of 0.1 fm, and…

hep-lat1996★ 5 cited

The two-phase issue in the O(n) non-linear $σ$ -model: A Monte Carlo study

B. Alles, A. Buonanno, G. Cella

We have performed a high statistics Monte Carlo simulation to investigate whether the two-dimensional O(n) non-linear sigma models are asymptotically free or they show a Kosterlitz…

hep-lat1996★ 3 cited

Functional integration on Regge geometries

Pietro Menotti, Pier Paolo Peirano

We adopt the standard definition of diffeomorphism for Regge gravity in D=2 and give an exact expression of the Liouville action in the discretized case. We also give the exact for…

hep-lat1996★ 5 cited

Critical behavior of the correlation function of three-dimensional O(N) models in the symmetric phase

Massimo Campostrini, Paolo Rossi, Andrea Pelissetto +1

We present new strong-coupling series for O(N) spin models in three dimensions, on the cubic and diamond lattices. We analyze these series to investigate the two-point Green's func…

hep-lat1996★ 1 cited

Topological susceptibility through the deconfining phase transition

B. Alles, M. D'Elia, A. Di Giacomo

We present a measurement of the topological susceptibility in SU(3) Yang-Mills theory through the deconfinement phase transition. An improved operator is used for the topological c…

hep-lat1996★ 12 cited

Classical improvement of lattice actions and quantum effects: a unified view

Paolo Rossi, Ettore Vicari

The possibility of removing the one-loop perturbative effects of lattice artifacts by a proper choice of the lattice action is explored, and found to depend crucially on the proper…

hep-lat1996★ 28 cited

Algebraic algorithm for the computation of one-loop Feynman diagrams in lattice QCD with Wilson fermions

Giuseppe Burgio, Sergio Caracciolo, Andrea Pelissetto

We describe an algebraic algorithm which allows to express every one-loop lattice integral with gluon or Wilson-fermion propagators in terms of a small number of basic constants wh…

hep-lat1996★ 2 cited

Efficiency of different matrix inversion methods applied to Wilson fermions

G. Cella, A. Hoferichter, V. K. Mitrjushkin +2

We compare different conjugate gradient -- like matrix inversion methods (CG, BiCGstab1 and BiCGstab2) employing for this purpose the compact lattice quantum electrodynamics (QED)…

hep-lat1996★ 34 cited

Lattice gauge-fixing for generic covariant gauges

L. Giusti

We propose a method which allows the generalization of the Landau lattice gauge-fixing procedure to generic covariant gauges. We report preliminary numerical results showing how th…

hep-lat1996★ 166 cited

Topological susceptibility at zero and finite $T$ in SU(3) Yang-Mills theory

B. Allés, M. D'Elia, A. Di Giacomo

We determine the topological susceptibility $χ$ at T=0 in pure SU(3) gauge theory and its behaviour at finite $T$ across the deconfining transition. We use an improved topological…

hep-lat1996★ 134 cited

Gauge--invariant field correlators in QCD at finite temperature

Adriano Di Giacomo, Enrico Meggiolaro, Haralambos Panagopoulos

We study by numerical simulations on a lattice the behaviour of the gauge--invariant two--point correlation functions of the gauge field strengths across the deconfinement phase tr…

hep-lat1996★ 53 cited

A strong-coupling analysis of two-dimensional O(N) sigma models with N<=2 on square, triangular and honeycomb lattices

Massimo Campostrini, Andrea Pelissetto, Paolo Rossi +1

The critical behavior of two-dimensional $O (N)$ $σ$ models with $N \leq 2$ on the square, triangular, and honeycomb lattices is investigated by an analysis of the strong-coupl…

hep-lat1996★ 45 cited

Asymptotic scaling in the two-dimensional $S U (3)$ $σ$ -model at correlation length $4 \times 1 0^{5}$

Gustavo Mana, Andrea Pelissetto, Alan D. Sokal

We carry out a high-precision simulation of the two-dimensional $S U (3)$ principal chiral model at correlation lengths $ξ$ up to $\approx 4 \times 1 0^{5}$ , using a multi-grid Monte…

hep-lat1996★ 16 cited

A strong-coupling analysis of two-dimensional O(N) sigma models with $N \geq 3$ on square, triangular and honeycomb lattices

Massimo Campostrini, Andrea Pelissetto, Paolo Rossi +1

Recently-generated long strong-coupling series for the two-point Green's functions of asymptotically free $O (N)$ lattice $σ$ models are analyzed, focusing on the evaluation o…

Light Quenched Hadron Spectrum and Decay Constants on different Lattices

Comparing Different Improvement Programs for the N-Vector Model

Topological charge on the lattice: a field theoretical view of the geometrical approach

The three-loop beta function in SU(N) lattice gauge theories

Light Quenched Hadron Spectrum and Decay Constants on different Lattices

The 3-loop Beta Function of QCD

Hybrid Monte Carlo and topological modes of full QCD

Condensation of vortices in the X-Y model in 3d: a disorder parameter

Field strength correlators in QCD at zero and non-zero temperature

The two-phase issue in the O(n) non-linear σ-model: A Monte Carlo study

Functional integration on Regge geometries

Critical behavior of the correlation function of three-dimensional O(N) models in the symmetric phase

Topological susceptibility through the deconfining phase transition

Classical improvement of lattice actions and quantum effects: a unified view

Algebraic algorithm for the computation of one-loop Feynman diagrams in lattice QCD with Wilson fermions

Efficiency of different matrix inversion methods applied to Wilson fermions

Lattice gauge-fixing for generic covariant gauges

Topological susceptibility at zero and finite T in SU(3) Yang-Mills theory

Gauge--invariant field correlators in QCD at finite temperature

A strong-coupling analysis of two-dimensional O(N) sigma models with N<=2 on square, triangular and honeycomb lattices

Asymptotic scaling in the two-dimensional SU(3) σ-model at correlation length 4×105

A strong-coupling analysis of two-dimensional O(N) sigma models with N≥3 on square, triangular and honeycomb lattices

The two-phase issue in the O(n) non-linear $σ$ -model: A Monte Carlo study

Topological susceptibility at zero and finite $T$ in SU(3) Yang-Mills theory

Asymptotic scaling in the two-dimensional $S U (3)$ $σ$ -model at correlation length $4 \times 1 0^{5}$

A strong-coupling analysis of two-dimensional O(N) sigma models with $N \geq 3$ on square, triangular and honeycomb lattices