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76 papers · 1 filter
Genus statistics on CMB polarization maps and cosmological parameters degeneracy
L. Popa, P. Stefanescu, R. Fabbri
We applay the genus statistics to simulated CMB polarization maps, constructed from the secondary-ionization cosmological models in experimental situations comparable to those of f…
Lazzeri's Jacobian of oriented compact riemannian manifolds
Elena Rubei
The subject of this paper is a Jacobian, introduced by F. Lazzeri, (unpublished), associated to every compact oriented riemannian manifold of dimension twice an odd number. We star…
The BFKL Equation at Next-to-Leading Order and Beyond
M. Ciafaloni, D. Colferai
On the basis of a renormalization group analysis of the kernel and of the solutions of the BFKL equation with subleading corrections, we propose and calculate a novel expansion of…
Infrared imaging of WENSS radio sources
D. Villani, S. di Serego Alighieri
We have performed deep imaging in the IR J- and K-bands for three sub-samples of radio sources extracted from the Westerbork Northern Sky Survey, a large low-frequency radio survey…
The quantum Heisenberg antiferromagnet on the square lattice
A. Cuccoli, V. Tognetti, P. Verrucchi +1
The pure-quantum self-consistent harmonic approximation, a semiclassical method based on the path-integral formulation of quantum statistical mechanics, is applied to the study of…
Effective Hamiltonian with holomorphic variables
A. Cuccoli, V. Tognetti, R. Giachetti +2
The pure-quantum self-consistent harmonic approximation (PQSCHA) permits to study a quantum system by means of an effective classical Hamiltonian - depending on quantum coupling an…