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Qubit generation and photon cooling in a Ramsey interferometer

Oyarce Andrade, Felipe Ignacio (2020)

In this thesis, we propose a realizable experimental scheme to prepare a superposition of the vacuum and one-photon states using a typical cavity QED-setup. This is different from previous schemes, where the superposition ...
Weak value amplification in an optomechanical system with mach-zehnder interferometer

Carrasco Novoa, Sergio (2021)

In this work an optomechanical system inside a Mach-Zehnder interferometer is studied from the perspective of the weak value amplification effect. The optomechanical system consists of a Fabry-Perot cavity with a moving ...
Caracterización dosimétrica del irradiador preclínico X-RAD 320 e implementación en una herramienta de cálculo de dósis

Emiliani de la Torre, Luis Eduardo (2021)

El objetivo de esta tesis fue la caracterización dosimétrica del irradiador preclínico X-RAD 320 mediante simulaciones Monte Carlo (MC). Adicionalmente, se implementó una herramienta de cálculo de dosis basada en los ...
Non-linear statistical dynamics of the elastic plate out of equilibrium

Pavez Vásquez, Ignacio (2021)

En este trabajo se realizó un estudio de las ecuaciones de Föppl-von Karman con el objetivo de entender la transición entre turbulencia de onda débil y fuerte. Para esto, se utilizó un método no-perturbativo proveniente ...
Searched for long-lived dark photons decaying to hadronic lepton jets using the ATLAS detector

González Andana, Richards; González Andana, Richards (2021)

Within the context of analyses looking for new particles in the ATLAS experiment at the Large Hadron Collider (LHC), a full event selection is designed to isolate simulated vector boson fusion (VBF) events where the Higgs ...
Quantum scalar theories in the AdS/CFT correspondence

Bianchi Palacios, Ernesto (2021)

This thesis contains original research on the conjectured AdS/CFT correspondence. Known are the holographic correlators resulting from this correspondence under its classical approximation, confirming the conjecture at ...
Cosmic inflation in modified models of gravity and an analysis on gravitational waves

Gamonal San Martín, Mauricio (2021)

This work comprises three different lines of research related to the study of cosmological inflation and the propagation of gravitational waves. In the first issue, we developed -for the first time in a systematic way- the ...
Spontaneous formation in air of DPPC Supported Lipid Bilayers (SLBs) evaporated in a solvent free process on silicon substrates

Cisternas Fruns, Marcelo Andrés (2021)

Artificial membranes are models for biological systems and are important to gain deeper insight into biological membranes and for various applications. We introduce a dry two-step self-assembly method consisting of the ...
Geometrical approach for quantum control : the qubit case

Mendizábal Pico, Mauro Javier (2021)

En esta tesis presentamos un modelo de control cuántico para transiciones de estados puros y mixtos, aplicado a un qubit. El modelo está basado en la geometría del espacio de los estados cuánticos dada por la métrica de ...
Towards the measurement of the spatial correlation among multiple optically trapped magnetic particles

Martínez Prieto, Loreto Alejandra (2020)

Optical Tweezers are a powerful tool that, using a strongly focused laser beam, allow us to generate optical forces for the manipulation of micro and nano-metric objects. They have a wide variety of applications in the ...
Transporte eléctrico en arreglos de nanotubos de carbono de baja cristalinidad y su utilización en dispositivos para sensado de gases

Adrián Formas, Alvaro Rodrigo (2021)

Este trabajo de investigación presenta el estudio de mecanismos de transporte eléctrico en nanotubos de carbono de baja cristalinidad (LC-CNTs). Estos fueron sintetizados mediante depósito químico en fase vapor sin ...
Effective hamiltonians of the negatively charged nitrogen-vacancy center in diamond under external perturbations

Jiménez, Alejandro (2019)

In this thesis, we present a procedure that encompasses the effect of all higher states in the system of the NV Center to formulate a non-diagonal effective Hamiltonian of a particular sub Hilbert space. In this case, the ...
Properties of four-component Dirac operators describing graphene quantum dots

Vallejos Benavides, Cristóbal (2020)

The electronic properties of graphene quantum dots (GQDs) can be described by the two-dimensional Dirac equation with boundary conditions consistent with the tight-binding model on a honeycomb lattice. It is convenient to ...
On the spectral stability of the nonlinear Dirac equation of Soler type

Aldunate Bascuñán, Danko (2020)

We study the spectral stability of the solitary wave solutions to the nonlin- ear Dirac equation in (1+1) dimension. We focus on a Soler type nonlinear model, where the nonlinearity is given by (ψψ)^p. The method we use ...
Magneto-thermal evolution of neutron star cores in the “strong-coupling regime”

Moraga Vent, Nicolás Andrés (2020)

In this thesis we study a young neutron star, with internal temperatures T >10^9 K, where the particles in the core are strongly coupled by collisional forces and can convert into each other by beta decays, in the so called ...
Chemical sensor based on nitrogen-vacancy centers in diamond

Santibáñez Cisternas, Vicente Andrés (2020)

During the last decade, the nitrogen-vancancy (NV) center in diamond has emerged as a solid platform for nanoscale quantum sensing, within which is electrometry and magnetometry. Owing to the NV center high sensitivity and ...
Impact of dose and grading uncertainties on xerostomia prediction using machine learning classification

Hormazábal González, María Constanza (2020)

Due to the sharp dose gradients present in IMRT treatments, small uncertainties can generate significant differences between the planned and delivered dose distribution for head-and-neck cancer patients. This thesis ...
The role of interacting stellar winds feeding Sagittarius A*.

Calderón Espinoza, Diego Nicolás. (2019)

The central parsec of the Milky Way is among the most enigmatic regions in the entire Galaxy. The existence of the central super-massive black hole, Sgr A*, and its proximity allow us to use it as a laboratory for understanding ...
Quantum sensing using NV centers in diamond

González Brouwer, Raúl, Manuel (2018)

This thesis is focused on understanding the interaction of nitrogen vacancy (NV) defect in diamond with its environment as well as its applications in nanotechnology and biophysics. First, we study the hyperfine interaction ...
Gas adsorption properties of complex copper oxides

Rojas de la Fuente, Susana Dennis (2017)

Highly epitaxial films of CuFeO2 and CuFe0.75Ga0.25O2 were grown by pulsed laserdeposition (PLD) from stoichiometric targets over Al2O3 (001) substrate undercontrolled partial pressure of oxygen as carrier gas. Resulting ...

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3.10 Facultad de Física

3.10 Facultad de Física

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