14.2k citations
Counting papers with at most 25 authors, so collaboration author lists do not stand in for the people here.
- University of PisaIT5.2k papers
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- Centre National de la Recherche ScientifiqueFR3.9k papers
- Istituto Nazionale di Fisica Nucleare, Laboratori Nazionali di FrascatiIT3.7k papers
- Institut National de Physique Nucléaire et de Physique des ParticulesFR3.6k papers
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8 papers · 2 filters
Quantum Field Theory, Bosonization and Duality on the Half Line
Antonio Liguori, Mihail Mintchev
We develop a bosonization procedure on the half line. Different boundary conditions, formulated in terms of the vector and axial fermion currents, are implemented by using in gener…
High-energy quark-quark scattering and the eikonal approximation
Enrico Meggiolaro
The high-energy quark-quark scattering amplitude is calculated first in the case of scalar QCD, using Fradkin's approach to derive the scalar quark propagator in an external gluon…
Magnetic monopoles in U(1)_4 Lattice Gauge Theory with Wilson action
V. Cirigliano, G. Paffuti
We construct the Euclidean Green functions for the soliton (magnetic monopole) field in the U(1)_4 Lattice Gauge Theory with Wilson action. We show that in the strong coupling regi…
Classical Inhomogeneities in String Cosmology
A. Buonanno, K. A. Meissner, C. Ungarelli +1
We generalize previous work on inhomogeneous pre-big bang cosmology by including the effect of non-trivial moduli and antisymmetric-tensor/axion fields. The general quasi-homogeneo…
A class of non-singular gravi-dilaton backgrounds
A. Buonanno, M. Gasperini, C. Ungarelli
We present a class of static, spherically symmetric, non-singular solutions of the tree-level string effective action, truncated to first order in . In the string frame the sol…
Non-trivial Behaviour of the Scattering Amplitude of Contact-interacting Anyons
P. Giacconi, F. Maltoni, R. Soldati
It is shown that the scattering amplitude for contact-interacting anyons does exhibit a genuine non-perturbative sector. This means that the corresponding perturbative field theore…
Finite Size Scaling and Running Coupling Constant in CP(N-1) models
Emanuele Manfredini
In this work I present a numerical study of the Finite Size Scaling (FSS) of a correlation length in the framework of the model by means of the 1/N expansion. This stud…
Expanding and contracting universes in third quantized string cosmology
A. Buonanno, M. Gasperini, M. Maggiore +1
We discuss the possibility of quantum transitions from the string perturbative vacuum to cosmological configurations characterized by isotropic contraction and decreasing dilaton.…