Electrodinámica Cuántica en Cavidad Multimodo

Alcaine Cuervo, Jesús Matías
Zueco Láinez, David (dir.) ; Vitalla, Fernando Luis (dir.)

Universidad de Zaragoza, CIEN, 2022
Física de la Materia Condensada department, Física de la Materia Condensada area

Graduado en Física

Abstract: Along this dissertation we review and understand the basic single-atom cavity QED models, as well as analyse their basic phenomenology and the different regimes they exhibit depending on the coupling strength between light and matter. We also establish that cavity QED implementations are many-body systems that are difficult to handle both analytically and numerically, and understand the polaron transform as a useful tool to treat these models semi-analytically. Furthermore, we identify the biased spin-boson model and study its properties via a generalisation of the polaron ansatz, comparing it with respect to the original. Further, we also validate our results against exact diagonalisation and draw some conclusions.

Tipo de Trabajo Académico: Trabajo Fin de Grado