New vacua for Yang-Mills theory on a 3-torus
In this thesis we discuss recent new insights in the structure of the moduli space of flat connections of Yang-Mills
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Nonlinear excitations: Solitons
The main purpose of this chapter is to present a brief introduction to nonlinear excitations, and to underline the soliton
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Particle Splitting: A New Method for SPH Star Formation Simulations
We have invented a new algorithm to use with self-gravitating SPH Star Formation codes. The new method is designed to
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Precision measurements of IVB parameters and bounds on new physics
The main purpose of this thesis is to discuss the impact of electroweak precision measurements on the present knowledge of
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Principles of Superconductivity
The purpose of this chapter is to discuss the main principles of superconductivity as a phenomenon, valid for every superconductor
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Proximity and Josephson effects in superconducting hybrid structures
Chapter 1: Superconductivity in thin SN bilayers. Chapter 2: Proximity effect in SF systems. Chapter 3: Josephson effect in SFS
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Semigroup Methods In Supersymmetric Theories Of Elementary Particles
The thesis is devoted to abstract, geometric and symmetric aspects of modern elementary particle theories. A new direction in constructing
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Stop and Sbottom Phenomenology in the MSSM
The first chapter serves as an introduction to the MSSM. I briefly review the model and explain why stops and
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Studies in Gravitational Wave Data Analysis
This thesis is devoted to the investigations of gravitational wave (GW) data analysis from a continuous source e.g. a pulsar,
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Studies in Topics Going beyond the Standard Electroweak Model
Supersymmetric Standard Model has been built to solve the hierarchy problem which is encountered whenever Standard Model is incorporated into
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Studies on a New Cosmological Model Based on Complex Metric
In this thesis, the implications of a new cosmological model are studied, which has features similar to that of decaying
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Symmetry Breaking in Extra Dimensions
In this thesis we analyze the problem of symmetry breaking in models with extra dimensions compactified on orbifolds. In the
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Tachyon Condensation: Calculations in String Field Theory
In this Ph.D. thesis, we study tachyon condensation in string field theories. In chapter 2, we review Witten's bosonic string
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The Cosmological Mass Function
This thesis aims to review the cosmological mass function problem, both from the theoretical and the observational point of view,
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Topics in quantum statistical mechanics and operator algebras
The language of operator algebras is of great help for the formulation of questions and answers in quantum statistical mechanics.
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Vertical transport in superlattices
All the principal results of this work concern the vertical transport in generic three dimensional superlattices. In the 1st chapter
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An overview of Cosmology
While purely philosophical in the early times, and still very speculative at the beginning of the twentieth century, Cosmology has
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Cosmological Simulations of Galaxy Formation Including Hydrodynamics (hyper-abridged)
The formation of galaxies in hierarchical cosmogonies is studied using high resolution N-body plus SPH hydrodynamics simulations. The collapse of
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Crust cooling curves of accretion-heated neutron stars
We discuss the recent efforts to use a sub-class of neutron-star X-ray transients (the quasi-persistent transients) to probe the properties
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Density Matrix Renormalisation Group Variants for Spin Systems
This thesis gives an extension for the Density Matrix Renormalisation Group (DMRG) to two dimensions and described a newly developed
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Dynamical symmetry breaking in the gauged Nambu-Jona-Lasinio model
The mechanism of dynamical chiral symmetry breaking is studied in the Abelian version of the gauged Nambu-Jona-Lasinio model in four
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Generalized sine-Gordon and massive Thirring models
We consider the Lagrangian description of the soliton sector of the so-called affine $\hat{sl}(3)$ Toda model coupled to matter (Dirac)
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Nonperturbative Formulations of Superstring Theory
After a short introduction to Matrix theory, we explain how can one generalize matrix models to describe toroidal compactifications of
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On Effective Field Theories at Finite Temperature
Chapter one is devoted to a study of fermions and bosons in two spatial dimensions in external electromagnetic fields. The
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