Author pages are created from data sourced from our academic publisher partnerships and public sources.

Publications Influence

Share This Author

Critical phenomena and renormalization-group theory

- A. Pelissetto, E. Vicari
- Physics
- 10 December 2000

Abstract We review results concerning the critical behavior of spin systems at equilibrium. We consider the Ising and the general O ( N )-symmetric universality classes, including the N →0 limit that… Expand

theta dependence of SU(N) gauge theories in the presence of a topological term

- E. Vicari, H. Panagopoulos
- Physics
- 11 March 2008

Abstract We review results concerning the θ dependence of 4D S U ( N ) gauge theories and QCD, where θ is the coefficient of the CP-violating topological term in the Lagrangian. In particular, we… Expand

Critical behavior of the three-dimensional XY universality class

- M. Campostrini, M. Hasenbusch, A. Pelissetto, P. Rossi, E. Vicari
- Physics
- 24 October 2000

We improve the theoretical estimates of the critical exponents for the
three-dimensional XY universality class. We find alpha=-0.0146(8),
gamma=1.3177(5), nu=0.67155(27), eta=0.0380(4),… Expand

25th-order high-temperature expansion results for three-dimensional Ising-like systems on the simple-cubic lattice.

- M. Campostrini, A. Pelissetto, P. Rossi, E. Vicari
- Mathematics, Physics
- Physical review. E, Statistical, nonlinear, and…
- 11 January 2002

25th-order high-temperature series are computed for a general nearest-neighbor three-dimensional Ising model with arbitrary potential on the simple cubic lattice. In particular, we consider three… Expand

Anisotropic perturbations in three-dimensional O(N)-symmetric vector models

- M. Hasenbusch, E. Vicari
- Physics
- 2 August 2011

We investigate the effects of anisotropic perturbations in three-dimensional O(N)-symmetric vector models. In order to assess their relevance for the critical behavior, we determine the… Expand

Irrelevant operators in the two-dimensional Ising model

- M. Caselle, M. Hasenbusch, A. Pelissetto, E. Vicari
- Mathematics, Physics
- 19 June 2001

By using conformal-field theory, we classify the possible irrelevant operators for the Ising model with nearest-neighbour interactions on the square and triangular lattices. We analyse the existing… Expand

Large-n critical behavior of O(n)×O(m) spin models

- A. Pelissetto, P. Rossi, E. Vicari
- Physics
- 3 April 2001

We consider the Landau-Ginzburg-Wilson Hamiltonian with O(n)x O(m) symmetry
and compute the critical exponents at all fixed points to O(n^{-2}) and to
O(\epsilon^3) in a \epsilon=4-d expansion. We… Expand

The critical exponents of the superfluid transition in He4

- M. Campostrini, M. Hasenbusch, A. Pelissetto, E. Vicari
- Physics
- 3 May 2006

We improve the theoretical estimates of the critical exponents for the three-dimensional XY universality class that apply to the superfluid transition in {sup 4}He along the {lambda} line of its… Expand

Relevance of the axial anomaly at the finite-temperature chiral transition in QCD

- A. Pelissetto, E. Vicari
- Physics
- 21 September 2013

We investigate the nature of the finite-temperature chiral transition in QCD
with two light flavors, in the case of an effective suppression of the the
U(1)_A symmetry breaking induced by the axial… Expand

Critical behavior of O(2)⊗O(N) symmetric models

- P. Calabrese, P. Parruccini, A. Pelissetto, E. Vicari
- Physics
- 28 May 2004

We investigate the controversial issue of the existence of universality
classes describing critical phenomena in three-dimensional statistical systems
characterized by a matrix order parameter with… Expand

...

1

2

3

4

5

...