Strongly correlated quantum physics with cold atoms [Elektronische Ressource] / vorgelegt von Tassilo Keilmann

Strongly correlated quantumphysics with cold atomsTassilo Keilmann0.80.6#"%'"%&$!! !" #! "Mu¨nchen 2009t i m e!() +*Strongly correlated quantumphysics with cold atomsTassilo KeilmannDissertationan derLudwig-Maximilians-Universit¨atMunc¨ henvorgelegt vonTassilo Keilmannaus B¨oblingenMunc¨ hen, den 25. August 2009Tag der mundlic¨ hen Pruf¨ ung: 26. Oktober 2009Erstgutachter: Prof. J. I. CiracZweitgutachter: Prof. U. Schollw¨ockWeitere Pruf¨ ungskommissionsmitglieder: Prof. I. Bloch, Prof. D. HabsAbstractThis thesis is devoted to exploit strong correlations among ultracold atoms in orderto create novel, exotic quantum states. In the first two chapters, we devise dynamicalout-of-equilibrium preparation schemes which lead to intriguing final states.First of all, we propose to create the elusive supersolid state via a quantumquench protocol. Supersolids – quantum hybrids exhibiting both superflow and solid-ity – have been envisioned long ago, but have not been demonstrated in experimentso far. Our proposal to create a supersolid state is perfectly accessible with currenttechnology and may clear the way to the experimental observation of supersolidity.Anotherout-of-equilibrium preparationscheme is discussedin the second chapter,givingrisetonovelCooperpairsofbosons. Ordinarily, Cooperpairsarecomposedof fermions – not so in our setup!