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 ...
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 ...
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 ...
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, ...