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Electric transport properties of S/F hybrids: weak and inhomogenous ferromagnet
(2012-03-30)
Superconductivity (S) and ferromagnetism (F) are competing phases whose coexistence
is unlikely to occur. Exceptions require a non−uniform profile both for the pairing and the
magnetization, as in the case of the FFLO state ...
Flavor mixing in quantum field theory and quantum information
(2011-05-10)
After reviewing the formalism for describing flavor mixing, both in Quantum Mechanics
and Quantum Field Theory, some consequences along three different directions are studied.
First, it is proposed that flavor mixing can ...
Exact solutions in general relativity and alternative theories of gravity: mathematical and physical properties
(2011-06-06)
In this thesis, we discuss several subjects connected with the framework
of GR, in order to characterize astrophysical compact objects. The main
purpose is to provide simple models describing gravitational fields generated ...
Investigation of the groundwater-river interaction, using Radon-222 as a natural tracer, in a karst Mediterranean environment like in the case study of the Bussento river basin
(2010-04-27)
The naturally-occurring radionuclides have proven to be powerful tools for assessing the time dependency of GSI processes. The radionuclide 222Rn (referred to as radon) has the advantage of being a radioactive noble gas, ...
Magneto-transport properties of thin superconducting strips in the framework of Time Dependent Ginzburg Landau model
(2012-05-30)
This dissertation is addressed to summarize my experimental/phenomenological research
activities conducted at the laboratories of Physics Department, University of Salerno. The
experimental work consisted in the fabrication ...
Nb nanoporous ultrathin films: matching effects and interconnected wires
(2012-03-03)
When the applied magnetic field is higher than the lower critical field but below
the upper critical field, a type-II superconductor allows magnetic flux to penetrate it
in the form of vortices, a tiny normal area surrounded ...
Dissipation, mixing and two level system in quantum field theory
(2012-04-30)
In this dissertation we discuss several aspects of a two level system (qubit) in the context of quantum mechanics and quantum field theory. The presence of geometrical phases in the evolution of a qubit state is shown. We ...
Trasporto quantistico di spin in eterostrutture magnetiche
(2012-06-04)
In questa tesi abbiamo studiato il trasporto di spin polarizzato e la torsione
dello spin usando l’apporoccio della matrice di scattering secondo la teoria
di Buttiker, nel caso di barriere magnetiche finite sotto l'effetto ...
Magnetic orbital and transport properties in LaMnO3 based based heterostructures
(2011-05-13)
This thesis work deals with the magnetic, orbital and transport properties of (LaMnO3)2N(SrMnO3)N digital superlattices and of LaxMnO3-d thin films, both deposited by molecular beam epitaxy (MBE) technique on SrTiO3 ...
Detailed study of local and regional seismicity recorded by the underground UNDERSEIS array at Gran Sasso (Central Italy)
(2011-05-13)
In this work I analyzed seismic data recorded by two arrays installed in the area of Mt. Gran Sasso
(Central Italy), one located at 1.4 km depth (UNDERSEIS), and the other at surface (Fontari). The
aim is to compare the ...