Can I read Spectrum and Dynamics of the BCS-BEC crossover from a few-body perspective on EtoBox?

Spectrum and Dynamics of the BCS-BEC crossover from a few-body perspective by von Stecher, Javier; Greene, Chris H. is a scholarly article available to read on EtoBox.

What is Spectrum and Dynamics of the BCS-BEC crossover from a few-body perspective about?

The spectrum of two spin-up and two spin-down fermions in a trap is calculated using a correlated gaussian basis throughout the range of the BCS-BEC crossover. These accurate calculations provide a few-body solution to the crossover problem. This solution is used to study the time-evolution of the system as the scattering length is changed, mimicking experiments with Fermi gases near Fano-Feshbach resonances. The structure of avoiding crossings in the spectrum allow us to understand the dynamics of the system as a sequence of Landau-Zener transitions. Finally, we propose a ramping scheme to study atom-molecule coherence.

Author

von Stecher, Javier; Greene, Chris H.

Published

2007

Language

EN