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Signatures of quantumness: identification, quantification and dynamical preservation
(Universita degli studi di Salerno, 2016-04-14)
The quanti cation of quantumness is necessary to assess how much a physical system
departs from a classical behaviour and thus gauge the quantum enhancement in opera-
tional tasks such as information processing and ...
Quantum Information Theory in Condensed Matter Physics
(Universita degli studi di Salerno, 2017-05-22)
Inthe“standard”Gizburg-Landauapproach,aphasetransitionisintimately connected to a local order parameter, that spontaneously breaks some symmetries. In addition to the “traditional” symmetry-breaking ordered phases, a complex ...
Constraining models of extended theories of gravity with terrestrial and astrophysical experiments
(Universita degli studi di Salerno, 2015-04-30)
In this Thesis we report a general review of Extended Theories of Gravity and the fundamental
aspects of General Relativity. We show the technicality of development of field equation with
respect to Newtonian, Post-Newtonian ...
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. ...
Trasporto quantistico di spin in eterostrutture magnetiche
(Universita degli studi di Salerno, 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 ...
Electron-electron and electron-phonon interactions in strongly correlated systems
(Universita degli studi di Salerno, 2013-04-29)
In this work we investigate some aspects of the physics of strongly correlated systems
by taking into account both electron-electron and electron-phonon interactions as
basic mechanisms for reproducing electronic ...
Gaussian and non-Gaussian resources in Quantum Information
(Universita degli studi di Salerno, 2013-04-05)
This dissertation was carried out within the framework of the Quantum Information (QI). In particular, I have analyzed the main aspects: the protocol, the quantum states, the conditional measurements, and the decoherence.
The ...
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 ...
Exact solutions in general relativity and alternative theories of gravity: mathematical and physical properties
(Universita degli studi di Salerno, 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 ...
Microlensing Towards the SMC and CMB Probing the Dark Matter in Galaxies
(Universita degli studi di Salerno, 2013-04-12)
Firstly we present a new analysis of the results of the EROS-2, OGLE-II, and OGLE-III microlensing campaigns towards the Small Magellanic Clouds (SMC). Through a statistical analysis we address the issue of the nature of ...