Observation of the Pairing Gap in a Strongly Interacting Fermi Gas | Zendy

Cheng Chin | Zendy; M. Bartenstein | Zendy; A. Altmeyer | Zendy; Stefan Riedl | Zendy; Selim Jochim | Zendy; Johannes Hecker Denschlag | Zendy; Rudolf Grimm | Zendy

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Observation of the Pairing Gap in a Strongly Interacting Fermi Gas

Author(s) -

Cheng Chin,

M. Bartenstein,

A. Altmeyer,

Stefan Riedl,

Selim Jochim,

Johannes Hecker Denschlag,

Rudolf Grimm

Publication year - 2004

Publication title -

science

Language(s) - English

Resource type - Journals

SCImago Journal Rank - 12.556

H-Index - 1186

eISSN - 1095-9203

pISSN - 0036-8075

DOI - 10.1126/science.1100818

Subject(s) - pairing , fermi gamma ray space telescope , fermi gas , condensed matter physics , physics , quantum mechanics , superconductivity , electron

We studied fermionic pairing in an ultracold two-component gas of 6Li atoms by observing an energy gap in the radio-frequency excitation spectra. With control of the two-body interactions through a Feshbach resonance, we demonstrated the dependence of the pairing gap on coupling strength, temperature, and Fermi energy. The appearance of an energy gap with moderate evaporative cooling suggests that our full evaporation brought the strongly interacting system deep into a superfluid state.

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