Pith. sign in

REVIEW

Inelastic Collisions of a Fermi Gas in the BEC-BCS Crossover

Not yet reviewed by Pith; the record is open.

Re-run · record.json Download PDF Read on arXiv ↗

This paper has not been read by Pith yet. Machine review is queued; the pith claim, tier, and objections will appear here once it completes.

SPECIMEN: schema-true, not a live event

T0 review · schema-true

One-sentence machine reading of the paper's core claim.

pith:XXXXXXXX · record.json · timestamp

arxiv 0903.1804 v1 pith:EOZDP67P submitted 2009-03-10 cond-mat.other

X. Du , Y. Zhang , J. E. Thomas This is my paper
classification cond-mat.other
keywords decaytwo-bodyresonancecollisionsinelasticthree-bodybec-bcsbelow
verification ladder T0 review T1 audit T2 compute T3 formal
0 comments
abstract

We report the measurement of inelastic three-body and two-body collisional decay rates for a two-component Fermi gas of $^6$Li, which are highly suppressed by the Pauli exclusion principle. Our measurements are made in the BEC-BCS crossover regime, near the two-body collisional (Feshbach) resonance. At high temperature (energy) the data shows a dominant three-body decay process, which is studied as a function of bias magnetic field. At low energy, the data shows a coexistence of two-body and three-body decay processes near and below the Feshbach resonance. Below resonance, the observed two-body inelastic decay can arise from molecule-atom and molecule-molecule collisions. We suggest that at and above resonance, an effective two-body decay rate arises from collisions between atoms and correlated (Cooper) pairs that can exist at sufficiently low temperature.

Discussion (0). Sign in to comment.

Pith tools