Departament de Física Fonamental: Recent submissions
Now showing items 21-40 of 64
Structure versus Magnetism in Magnetic Nanoparticles
From the fundamental point of view, NPs formed by MFe2O4 with (M= Co, Fe) are ideal system models to study the new magnetic phenomena associated with the so-called particle-like behaviour, which emerges from the size ...
Vortex Dynamics in Superconducting Thin Films under Microwave Fields
In this thesis we have studied the vortex dynamics in type-2 superconducting thin films made of La1.82Sr0.18CuO4, patterned Pb and MgB2, by means of the combination of microwave, dc and ac measurements. In particular, we ...
L’experiment d’Stern i Gerlach en el seu context teòric: la història d’una reorientació
L'experiment d'Stern-Gerlach (SG) és considerat un dels més importants de la història de la teoria quàntica, i sovint s'utilitza en llibres de text de Mecànica Quàntica per il·lustrar el concepte d'espín ...
The Molecular Toolbox: Dendrimer Decorated Biomaterials for Musculoskeletal Regeneration
Regenerative medicine takes multifaceted approaches towards healing complex injury and restoring normal tissue function by combining biomaterials with cells and drugs. Recently, naturally occurring polymers found in the ...
Probing gauge theories: Exact results and holographic computations
The holographic duality between gauge theories and string theories has opened a new door to access the strongly coupled regime of quantum field theories and offers, at the same time, a completely new way to ...
Force-spectroscopy of small ligands binding to nucleic acids
Single-molecule techniques allow to following biomolecular reactions with unprecedented resolution. Particularly, optical tweezers can be used to manipulate and apply forces to individual molecules tethered between plastic ...
Single molecule studies in a temperature-jump optical trap
In the field of biophysics, the study of the thermodynamic characteristics of biomolecules, such as DNA, RNA or proteins, allows us to understand more about the building blocks of life. The thermodynamic characterization ...
Novel quantum phenomena and excitation modes in type-I superconductors and magnetic vortices
The aim of this thesis was to study quantum phenomena and excitation modes in type-I superconductors and magnetic vortices. The intermediate state in type-I superconductors is characterized by the gradual penetration ...
Protein dynamics studied by coarse-grained and atomistic theoretical approaches
Protein structure, dynamics and function, are inseparable in order to understand the mechanisms of Life at the molecular level. From the structure comes dynamics, and from dynamics many, if not all, protein functions. ...
Computational study of DNA in non-canonical environment
During my PhD thesis used theoretical techniques, in particular Molecular Dynamics to study the structural properties of nucleie acids in non-canonical environment, especially in the gas phase and apolar conditions. The ...
Nanomagnetism and high frequency experiments. Basic science and technological applications
The interaction between magnetic nanoparticles and high frequencies, such as microwaves or terahertz waves, is one of the most active field of research, with interesting applications in the screening of electromagnetic ...
Estudi de Materials Magnètics amb Microones
La resposta dels materials i/o sistemes físics quan interactuen amb la radiació electromagnètica ens dóna informació sobre les propietats físiques d’aquesta classe de materials i/o sistemes, com per exemple la conductivitat ...
Cosmological perturbations including matter loops. A study in de Sitter
In this thesis we studied quantum effects in de Sitter space coming from the interaction of gravitons and matter. We derived the lowenergy effective action for metric perturbations which includes corrections from matter ...
Facing the environment: hydrodynamics and confinement modulate molecular motors dynamics
In this thesis we characterize the behavior of molecular motors when the properties of the cytoplasm they displace through are not homogeneous or isotropic. Anisotropies in the cytoplasm can be induced, for example, by net ...
Coarse-Grained Modeling of the Assembly and Mechanical Properties of Viruses
The main goal of this thesis is to study the physical mechanisms implicated in the self-assembly and mechanical properties of non-enveloped viral capsids using coarse-grained models. The thesis has been divided into three ...
Statistical Physics of Water in Hydrophobic Nano-Confinement and at Proteins Interfaces
Water is commonly associated with life. This substance affects the living beings in countless aspects and length scales, ranging from molecular biology to climatology. Water exhibits a long series of anomalous behaviors. ...
New Applications of the Gauge/Gravity Duality
The purpose of this thesis is to put forth and present a series of new applications of the gauge/string duality to areas of high energy physics and condensed matter physics. The contributions showcased in this thesis amount ...
Cosmological Perturbations in Einstein-Aether Theories
In this thesis we study the Einstein-Aether (E-A) theory from the point of view of its cosmological perturbations. We are interested in the constraints that may be obtained from this analysis and the special features that ...
Black Holes: New Perspectives from Higher Dimensions
However successful classical general relativity is, it faces non-normalizability problems at the quantum mechanical level. Nevertheless, it predicts the existence of black holes, which are thermal objects that are expected ...
Reconstruction, mobility, and synchronization in complex networks
During the last decades, it has become clear that systems formed by many interacting parts show emergent dynamical properties which are inherently related to the topology of the underlying pattern of connections among the ...
