Fluctuations in the formation time of ultracold dimers from fermionic atoms
arXiv:cond-mat/0412105 · doi:10.1103/PhysRevA.72.053616
Abstract
We investigate the temporal fluctuations characteristic of the formation of molecular dimers from ultracold fermionic atoms via Raman photoassociation. The quantum fluctuations inherent to the initial atomic state result in large fluctuations in the passage time from atoms to molecules. Assuming degeneracy of kinetic energies of atoms in the strong coupling limit we find that a heuristic classical stochastic model yields qualitative agreement with the full quantum treatment in the initial stages of the dynamics. We also show that in contrast to the association of atoms into dimers, the reverse process of dissociation from a condensate of bosonic dimers exhibits little passage time fluctuations. Finally we explore effects due to the non-degeneracy of atomic kinetic energies.
arXiv comment7 pages, 6 figures
References in corpus (10)
- Observation of Bose-Einstein Condensation of Molecules
- Superchemistry: dynamics of coupled atomic and molecular Bose-Einstein condensates
- Nonequilibrium dynamics and thermodynamics of a degenerate Fermi gas across a Feshbach resonance
- Adiabatic association of ultracold molecules via magnetic field tunable interactions
- An effective theory of Feshbach resonances and many-body properties of Fermi gases
- Atom-molecule coexistence and collective dynamics near a Feshbach resonance of cold fermions
- Crossover temperature of Bose-Einstein condensation in an atomic Fermi gas
- Collective molecule formation in a degenerate Fermi gas via a Feshbach resonance
- Number statistics of molecules formed from ultra-cold atoms
- Boson-Fermion coherence in a spherically symmetric harmonic trap
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