Publications (34)
Bound states in the 3d Ising model and implications for QCD at finite temperature and density
M. Caselle, M. Hasenbusch, P. Provero +1
We study the spectrum of bound states of the three dimensional Ising model in the (h,beta) plane near the critical point. We show the existence of an unbinding line, defined as the…
2D Yang-Mills Theory as a Matrix String Theory
M. Billo', M. Caselle, A. D'Adda +1
Quantization of two-dimensional Yang-Mills theory on a torus in the gauge where the field strength is diagonal leads to twisted sectors that are completely analogous to the ones th…
Two-dimensional gauge theories of the symmetric group S_n in the large-n limit
A. D'Adda, P. Provero
We study the two-dimensional gauge theory of the symmetric group S_n describing the statistics of branched n-coverings of Riemann surfaces. We consider the theory defined on the di…
Matrix string states in pure 2d Yang Mills theories
M. Billo', M. Caselle, A. D'Adda +1
We quantize pure 2d Yang-Mills theory on a torus in the gauge where the field strength is diagonal. Because of the topological obstructions to a global smooth diagonalization, we f…
Interaction effects in the spectrum of the three-dimensional Ising model
P. Provero
The two-point correlation functions of statistical models show in general both poles and cuts in momentum space. The former correspond to the spectrum of massive excitations of the…
Bound states in the three dimensional phi^4 model
M. Caselle, M. Hasenbusch, P. Provero +1
We discuss the spectrum of the three dimensional phi^4 theory in the broken symmetry phase. In this phase the effective potential between the elementary quanta of the model is attr…
A computational approach to regulatory element discovery in eukaryotes
M. Caselle, F. Di Cunto, P. Provero
Gene regulation in Eukaryotes is mainly effected through transcription factors binding to rather short recognition motifs generally located upstream of the coding region. We presen…
Generalized two-dimensional Yang-Mills theory is a matrix string theory
M. Billo', M. Caselle, A. D'adda +1
We consider two-dimensional Yang-Mills theories on arbitrary Riemann surfaces. We introduce a generalized Yang-Mills action, which coincides with the ordinary one on flat surfaces…
The spectrum of screening masses near T_c: predictions from universality
R. Fiore, A. Papa, P. Provero
We discuss the spectrum of screening masses in a pure gauge theory near the deconfinement temperature from the point of view of the dimensionally reduced model describing the spont…
Quantum fluctuations of the color flux tube
P. Provero
The quantum fluctuations of the flux tube joining two static sources in the confining phase of a lattice gauge theory are described by an effective string theory. The predictions o…
Finite Size Effects in Fluid Interfaces
M. Caselle, F. Gliozzi, P. Provero +1
It is shown that finite size effects in the free energy of a rough interface of the 3D Ising and three--state Potts models are well described by the capillary wave model at {\em tw…
Correlating overrepresented upstream motifs to gene expression: a computational approach to regulatory element discovery in eukaryotes
M. Caselle, F. Di Cunto, P. Provero
Gene regulation in eukaryotes is mainly effected through transcription factors binding to rather short recognition motifs generally located upstream of the coding region. We presen…
When QCD strings can break
F. Gliozzi, P. Provero
The confining string in presence of dynamical quarks can behave in different ways, depending on the quark masses and on the number N_f N_c of charge species. For light masses and l…
Non-perturbative states in the three-dimensional phi^4 theory
M. Caselle, M. Hasenbusch, P. Provero
We study the spectrum of massive excitations of the three-dimensional phi^4 and Ising models, in the broken-symmetry phase. Using a variational method, we show that the spectrum co…
Matrix strings from generalized Yang-Mills theory on arbitrary Riemann surfaces
M. Billo', A D'Adda, P. Provero
We quantize pure 2d Yang-Mills theory on an arbitrary Riemann surface in the gauge where the field strength is diagonal. Twisted sectors originate, as in Matrix string theory, from…
Finite-size scaling and the deconfinement transition in gauge theories
R. Fiore, A. Papa, P. Provero
We introduce a new method for determining the critical indices of the deconfinement transition in gauge theories. The method is based on the finite size scaling behavior of the exp…
Large center vortices and confinement in 3D Z(2) gauge theory
F. Gliozzi, M. Panero, P. Provero
We study the role of large clusters of center vortices in producing confinement in 3D Z(2) gauge theory. First, we modify each configuration of a Monte Carlo-generated ensemble in…
Two-dimensional gauge theories of the symmetric group S(n) and branched n-coverings of Riemann surfaces in the large-n limit
A. D'Adda, P. Provero
Branched n-coverings of Riemann surfaces are described by a 2d lattice gauge theory of the symmetric group S(n) defined on a cell discretization of the surface. We study the theory…
Critical correlators of three-dimensional gauge theories at finite temperature: exact results from universality
R. Fiore, F. Gliozzi, P. Provero
According to the Svetitsky-Yaffe conjecture, a three-dimensional gauge theory undergoing a continuous deconfinement transition is in the same universality class as a two-dimensiona…
Non-perturbative states in the 3D phi^4 theory
M. Caselle, M. Hasenbusch, P. Provero
We show that the spectrum of the three dimensional phi^4 theory in the broken symmetry phase contains non-perturbative states. We determine the spectrum using a new variational tec…
String effects in Polyakov loop correlators
M. Caselle, M. Panero, P. Provero
We compare the predictions of the effective string description of confinement in finite temperature gauge theories to high precision Monte Carlo data for the three-dimensional Z_2…
The confining string and its breaking in QCD
F. Gliozzi, P. Provero
We point out that the world sheet swept by the confining string in presence of dynamical quarks can belong to two different phases, depending on the number of charge species and th…
Gene networks from DNA microarray data: centrality and lethality
P. Provero
We construct a gene network based on expression data from DNA microarray experiments, by establishing a link between two genes whenever the Pearson's correlation coefficient betwee…
Bound states and glueballs in three-dimensional Ising systems
M. Caselle, M. Hasenbusch, P. Provero +1
We study the spectrum of massive excitations in three-dimensional models belonging to the Ising universality class. By solving the Bethe-Salpeter equation for 3D theory in t…
The Svetitsky-Yaffe conjecture for the plaquette operator
F. Gliozzi, P. Provero
According to the Svetitsky-Yaffe conjecture, a (d+1)-dimensional pure gauge theory undergoing a continuous deconfinement transition is in the same universality class as a d-dimensi…
Critical behavior of 3D SU(2) gauge theory at finite temperature: exact results from universality
R. Fiore, F. Gliozzi, P. Provero
We show that universality arguments, namely the Svetitsky-Yaffe conjecture, allow one to obtain exact results on the critical behavior of 3D SU(2) gauge theory at the finite temper…
String effects in Polyakov loop correlators
M. Caselle, M. Hasenbusch, M. Panero +1
We compare the predictions of the effective string description of confinement in finite temperature gauge theories to high precision Monte Carlo data for the three-dimensional Z(2)…
Center vortices, magnetic condensate and confinement in a simple gauge system
F. Gliozzi, M. Panero, P. Provero
The confining mechanisms of 't Hooft and Mandelstam have a simple microscopic realization in 3D Z2 gauge theory: the center vortex and the magnetic monopole condensation are associ…
Branched Coverings and Interacting Matrix Strings in Two Dimensions
M. Billo', A. D'Adda, P. Provero
We construct the lattice gauge theory of the group G_N, the semidirect product of the permutation group S_N with U(1)^N, on an arbitrary Riemann surface. This theory describes the…
String Effects in the Wilson Loop: a high precision numerical test
M. Caselle, R. Fiore, F. Gliozzi +2
We test numerically the effective string description of the infrared limit of lattice gauge theories in the confining regime. We consider the 3d Z(2) lattice gauge theory, and we d…
Critical Boundary Conditions for the Effective String
M. Caselle, R. Fiore, F. Gliozzi +2
Gauge systems in the confining phase induce constraints at the boundaries of the effective string, which rule out the ordinary bosonic string even with short distance modifications…
Percolating cluster of center vortices and confinement
F. Gliozzi, M. Panero, P. Provero
We study the role of percolating clusters of center vortices in configurations of an Ising gauge theory in 3D. It is known that low energy features of gauge theories can be describ…
Spectrum of the gauge Ising model in three dimensions
M. Caselle, M. Hasenbusch, P. Provero
We present a high precision Monte Carlo study of the spectrum of the Ising gauge theory in three dimensions in the confining phase. Using state of the art Monte Carlo techniques we…
Finding regulatory sites from statistical analysis of nucleotide frequencies in the upstream region of eukaryotic genes
M. Caselle, F. Di Cunto, M. Pellegrino +1
We discuss two new approaches to extract relevant biological information on the Transcription Factors (and in particular to identify their binding sequences) from the statistical d…