Observation of the Pairing Gap in a Strongly Interacting Fermi Gas-Reference-Cited by-同舟云学术

Observation of the Pairing Gap in a Strongly Interacting Fermi Gas

Published:2004-08-20 Issue:5687 Volume:305 Page:1128-1130
ISSN:0036-8075
Container-title:Science
language:en
Short-container-title:Science

Author:

Chin C.¹²,Bartenstein M.¹²,Altmeyer A.¹²,Riedl S.¹²,Jochim S.¹²,Denschlag J. Hecker¹²,Grimm R.¹²

Affiliation:

1. Institut für Experimentalphysik, Universität Innsbruck, Technikerstraße 25, 6020 Innsbruck, Austria.

2. Institut für Quantenoptik und Quanteninformation, Österreichische Akademie der Wissenschaften, 6020 Innsbruck, Austria.

Abstract

We studied fermionic pairing in an ultracold two-component gas of 6 Li 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.

Publisher

American Association for the Advancement of Science (AAAS)

Subject

Multidisciplinary

Reference37 articles.

1. Introduction to Superconductivity 1996

2. Possible Pairing without Superconductivity at Low Carrier Concentrations in Bulk and Thin-Film Superconducting Semiconductors

3. A. J. Leggett, in Modern Trends in the Theory of Condensed Matter, A. Pekalski, R. Przystawa, Eds. (Springer-Verlag, Berlin, 1980), pp. 13–27.

4. Bose condensation in an attractive fermion gas: From weak to strong coupling superconductivity

5. Q. Chen J. Stajic S. Tan K. Levin in preparation (available at http://arxiv.org/abs/cond-mat/0404274).

Cited by 714 articles. 订阅此论文施引文献订阅此论文施引文献，注册后可以免费订阅5篇论文的施引文献，订阅后可以查看论文全部施引文献

1. Peaks and widths of radio-frequency spectra: An analysis of the phase diagram of ultra-cold Fermi gases;Results in Physics;2024-02

2. Generalized effective spin-chain formalism for strongly interacting spinor gases in optical lattices;Physical Review A;2023-12-21

3. Coherent states of photonic dimers;Physical Review A;2023-11-07

4. Spectroscopic evidence for engineered hadronic bound state formation in repulsive fermionic SU(N) Hubbard systems;Physical Review Research;2023-10-09

5. Phase transition in bilayer quantum Hall system with opposite magnetic field;Chinese Physics B;2023-09-01