Brualla Barberà, Llorenç (Date of defense: 2002-07-11)
Path integral Monte Carlo (PIMC) is a method suitable for quantum liquid simulations at finite temperature. We present in this thesis a study of PIMC dealing with the theory and algorithms related to ...
Guijarro Gamez, Grecia (Date of defense: 2020-12-21)
In this Thesis, we report a detailed study of the ground-state properties of a set of quantum few- and many-body systems by using Quantum Monte Carlo methods. First, we introduced the Variational Monte ...
Grau Torre-Marín, Victor (Date of defense: 2001-07-16)
de la tesi <br/>En aquest treball es presenta un estudi de l'3He a temperatura zero combinant les tècniques de Monte Carlo variacional (VMC) i la difusiva (DMC) amb nodes fixos (FN) i relaxació dels ...
Rota, Riccardo (Date of defense: 2011-12-20)
Several microscopic theories point out that Bose-Einstein condensation (BEC), i.e., a macroscopic occupation of the lowest energy single particle state in many-boson systems, may appear also in quantum ...
Cikojević, Viktor (Date of defense: 2021-04-20)
The properties of mixtures of Bose-Einstein condensates at T=0 have been investigated using quantum Monte Carlo (QMC) methods and Density Functional Theory (DFT) with the aim of understanding physics ...
Sánchez Baena, Juan (Date of defense: 2020-12-14)
The main goal of this thesis is the computation of ground state properties of quantum many-body systems under Spin Orbit coupling (SOC) interactions out of the ultradilute regime. We present two approaches ...
Macía Rey, Adrián (Date of defense: 2015-02-13)
A microscopic description of the many-body properties of anisotropic homogeneous gases of bosonic dipoles in two dimensions is presented and discussed. By changing the polarization angle with respect ...
Ferré Porta, Guillem (Date of defense: 2017-09-16)
The main objective of the thesis is to study static and/or dynamic properties of a set of quantum fluids by means of quantum Monte Carlo techniques, mainly using the path integral formalism to obtain ...
Osychenko, Oleg N. (Date of defense: 2012-12-20)
The Thesis is devoted to simulations of quantum phase transitions by means of Quantum Monte Carlo techniques. Quantum phase transition is a transition between phases at zero or low enough temperature, ...
Bombín Escudero, Raúl (Date of defense: 2019-12-13)
The object of study of this thesis are dipolar systems in the quantum degenerate regime. In general, dealing with many-body systems and evaluating their properties requires to deal with the the Schrödinger ...