Browsing Fisica by Title
Now showing items 10-29 of 33
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Flavor mixing in quantum field theory and quantum information
(Universita degli studi di Salerno, 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 ... -
Graphene and carbon nanotubes in transistors, diodes and field emission devices
(Universita degli studi di Salerno, 2017-03-22)Since their discovery, graphene and carbon nanotubes have been playing an important role in nanoscience and nanotechnology thanks to their extraordinary physical and chemical properties. With silicon-based electronics ... -
The ground deformations: tools, methods and application to some Italian volcanic regions
(Universita degli studi di Salerno, 2012-06-13)The objective of this thesis is the study of slow deformation of the soil as a result of intrusion of magma inside the magmatic chambers of some volcanoes located in Southern Italy. In particular, the Mt. Vesuvius and ... -
Improvements in the acoustical modelling of traffic noise prediction: theoretical and experimental results
(Universita degli studi di Salerno, 2011-04-21)Traffic acoustical noise is one of the most important component of the urban environmental pollution in densely populated areas all over the world. A very recent ACI-Censis study [1] on Italian urban areas shows that car ... -
Influence of grains on the electromagnetic ac response of superconducting materials
(Universita degli studi di Salerno, 2016-04-20)Type II superconducting materials are technologically interesting since they are characterized by the existence of a superconducting phase even after the penetration of the magnetic field inside them. In fact, while type ... -
Interface effects in superconducting heterostructures
(Universita degli studi di Salerno, 2016-04-14)This work debates a theoretical investigation of the interfacial effects about heterostructures with normal metals and superconductors. At the beginning we will introduce the basic physical phenomena our calculations deal ... -
Interplay of spin-orbital correlations and structural distortions in Ru- and Cr- based perovskite systems
(Universita degli studi di Salerno, 2012-07-02)The transition metal oxides are emerging as the natural playground where the intriguing effects induced by electron correlations can be addressed. Since the s electron of the transition metals are transferred to the ... -
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
(Universita degli studi di Salerno, 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, ... -
Josephson junctions, quantum interference devices and applications in the field of dark matter search
(Universita degli studi di Salerno, 2016-04-13)In questa Tesi di Dottorato, io e il mio supervisor, il Prof. Roberto De Luca, abbiamo analizzato alcuni particolari dispositivi superconduttori, le giunzioni Josephson e gli SQUIDs (Superconducting Quantum Interference ... -
Magnetic orbital and transport properties in LaMnO3 based based heterostructures
(Universita degli studi di Salerno, 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 ... -
Magneto-transport properties of thin superconducting strips in the framework of Time Dependent Ginzburg Landau model
(Universita degli studi di Salerno, 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 ... -
Metodologie didattiche per l'insegnamento-apprendimento della Fisica: studi di caso nella Scuola Secondaria di II grado
(Universita degli studi di Salerno, 2017-05-15)The present work focuses on case studies conducted from 2014 to 2016 in Secondary Schools in Campania where new teaching methodologies for teaching - Physical Learning have been experimented. Of these methodologies, ... -
La mostra "Divertiesperimenti" come ponte tra l'apprendimento informale e il formale nell'insegnamento della fisica nella scuola secondaria
(Universita degli studi di Salerno, 2017-05-23)The actual surveys highlight that teaching scientific disciplines it gives often-inadequate results, in Italy particularly, and it emerges that, in general, the educational aspects of the teaching of the Physics are not ... -
Nb nanoporous ultrathin films: matching effects and interconnected wires
(Universita degli studi di Salerno, 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 ... -
The neutrino interaction analysis chain in OPERA
(Universita degli studi di Salerno, 2011-04-20)The aim of the OPERA experiment is to provide a “smoking-gun” proof of neutrino oscillations, through the detection of the appearance signal of ντ’s in an initially pure νμ beam. The beam is produced at CERN, 732 Km far ... -
Non-markovian quantum dynamics
(Universita degli studi di Salerno, 2016-04-28)Quantum systems can necessarily be viewed as open systems. As in classical physics, any realistic description of a system must take into account the cou- pling to an environment that strongly in uences the system itself. ... -
On neutrino mixing in Quantum Field Theory
(Universita degli studi di Salerno, 2017-05-23)Neutrino physics is one of the most important areas in research on the fundamental interactions, both theoretically and experimentally. A central issue in the study of these particles is related to the properties of mixing ... -
Particle mixing, two level systems and gauge theory
(Universita degli studi di Salerno, 2012-04-26)In this thesis I will discuss the theory of two level systems and the theory of the oscillating particles in quantum eld theory. In the rst chapter I will consider the time evolution of a two level system, a qubit, ... -
Phase transitions in strongly correlated electronic systems
(Universita degli studi di Salerno, 2014-06-19)We studied the some type of phase transitions in Strongly Correlated Electronic Systems. In particular we rigorously established some exact properties of a multi-orbital Hubbard model, here formulated to describe a nematic ... -
Progettazione e sperimentazione di un percorso didattico sperimentale in superconduttività.
(Universita degli studi di Salerno, 2014-07-31)Vengono presentate e discusse le fasi di progettazione, realizzazione e valutazione di efficacia di un percorso didattico di insegnamento/apprendimento incentrato sui materiali superconduttori partendo dalle loro proprietà ...
