Latorre, José IgnacioCopetudo Espinosa, Adrián2019-09-272019-09-272019-06https://hdl.handle.net/2445/141106Treballs Finals de Grau de Física, Facultat de Física, Universitat de Barcelona, Curs: 2019, Tutor: José Ignacio LatorreThe phase diagram of the quantum Axial Next-Nearest Neighbour Ising model is studied with and without transverse field, in order to locate the maximally frustrated point. AVariational Quantum Eigensolver has been implemented for 4, 8 and 12 qubits, to compute the ground state energy of this Hamiltonian. Besides, the Solovay-Kitaev theorem is introduced in order to analyze how the error of the energy scales with the number of gates of the circuit5 p.application/pdfengcc-by-nc-nd (c) Copetudo, 2019http://creativecommons.org/licenses/by-nc-nd/3.0/es/Teoria quànticaDiagrames de faseModel d'IsingTreballs de fi de grauQuantum theoryPhase diagramsIsing modelBachelor's thesesinfo:eu-repo/semantics/bachelorThesisinfo:eu-repo/semantics/openAccess