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Archivio digitale delle tesi discusse presso l’Università di Pisa

Tesi etd-04192017-104429


Tipo di tesi
Tesi di laurea magistrale
Autore
COLELLA, ELVIA
Indirizzo email
elviacolella92@hotmail.it
URN
etd-04192017-104429
Titolo
Quantum Phases of Ultra-Cold Fermi Gases in Optical Cavities
Dipartimento
FISICA
Corso di studi
FISICA
Relatori
relatore Chiofalo, Maria Luisa
Parole chiave
  • cavity
  • Enrico Fermi
  • gases
  • ultracold
Data inizio appello
08/05/2017
Consultabilità
Completa
Riassunto
Main aim of the present thesis is to investigate the quantum phases arising from the interaction of an ultra-cold Fermi gas with the quantized electromagnetic field of a single-mode optical cavity. Both numerical and analytical methods are used. In particular, we suggest that the same microscopic mechanism, originated by exchange of photons inside the optical cavity, induces interactions between the spins of the fermionic atoms and, indirectly, a superfluid pairing. As a result, a phase diagram can be established, where different order parameters emerge, related to spin and density degrees of freedom, which evolve into each other after tuning the sign and strength of the interactions across the cavity resonance.
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