Radio-frequency spectroscopy of ultracold fermions

Science

Volumn 300, Issue 5626, 2003, Pages 1723-1726

  Gupta, S ^a   Hadzibabic, Z ^a   Zwierlein, M W ^a   Stan, C A ^a   Dieckmann, K ^a   Schunck, C H ^a   Van Kempen, E G M ^b   Verhaar, B J ^b   Ketterle, W ^a  

^a MASSACHUSETTS INSTITUTE OF TECHNOLOGY   (United States)

^b EINDHOVEN UNIVERSITY OF TECHNOLOGY   (Netherlands)

Author keywords

[No Author keywords available]

Indexed keywords

ATOMIC CLOCKS; FERMI LIQUIDS; QUANTUM THEORY; SPECTROSCOPIC ANALYSIS; SUPERFLUID HELIUM;

RADIO-FREQUENCY SPECTROSCOPY;

FERMIONS;

RADIO; SPECTROSCOPY;

ARTICLE; ATOMIC CLOCK; ATOMIC PARTICLE; MAGNETIC FIELD; PRIORITY JOURNAL; QUANTUM MECHANICS; RADIOFREQUENCY; RADIOFREQUENCY SPECTROSCOPY;

EID: 0037841798     PISSN: 00368075     EISSN: None     Source Type: Journal    
DOI: 10.1126/science.1085335     Document Type: Article

References (41)

1. K. Gibble, S. Chu, Phys. Rev. Lett. 70, 1771 (1993).
2. C. Fertig, K. Gibble, Phys. Rev. Lett. 85, 1622 (2000).
3. Y. Sortais et al., Phys. Ser. T95, 50 (2001).
4. A. G. Martin, K. Helmerson, V. S. Bagnato, G. P. Lafyatis, D. E. Pritchard, Phys. Rev. Lett. 61, 2431 (1988).
5. I. Bloch, T. W. Hänsch, T. Esslinger, Phys. Rev. Lett. 82, 3008 (1999).
6. M. R. Matthews et al., Phys. Rev. Lett. 81, 243 (1998).
7. J. Stenger et al., Nature 396, 345 (1998).
8. M.-O. Mewes et al., Phys. Rev. Lett. 78, 582 (1997).
9. D. M. Harber, H. J. Lewandowski, J. M. McGuirk, E. A. Cornell, Phys. Rev. A. 66, 053616 (2002).
10. A. Görlitz et al., Phys. Rev. Lett. 90, 090401 (2003).
11. T. C. Killian et al., Phys. Rev. Lett. 81, 3807 (1998).
12. J. Stenger et al., Phys. Rev. Lett. 82, 4569 (1999).
13. B. DeMarco, D. S. Jin, Science 285, 1703 (1999).
14. A. G. Truscott, K. E. Strecker, W. I. McAlexander, G. B. Partridge, R. G. Hulet, Science 291, 2570 (2001).
15. F. Schreck et al., Phys. Rev. Lett. 87, 080403 (2001).
16. S. R. Granade, M. E. Gehm, K. M. O'Hara, J. E. Thomas, Phys. Rev. Lett. 88, 120405 (2002).
17. Z. Hadzibabic et al., Phys. Rev. Lett. 88, 160401 (2002).
18. G. Roati, F. Riboli, G. Modungo, M. Inguscio, Phys. Rev. Lett. 89, 150403 (2002).
19. M. Houbiers, H. T. C. Stoof, Phys. Rev. A. 59, 1556 (1999).
20. M. Holland, S. J. J. M. F. Kokkelmans, M. L. Chiofalo, R. Walser, Phys. Rev. Lett. 87, 120406 (2001).
21. K. Dieckmann et al., Phys. Rev. Lett. 89, 203201 (2002).
22. Z. Hadzibabic et al., preprint available at http://arXiv.org/abs/cond-mat/0306050 (2003).
23. S-wave and p-wave interactions refer to two-body interactions with relative angular momentum 0 and ℏ, respectively.
24. M. Houbiers, H. T. C. Stoof, W. I. McAlexander, R. G. Hulet, Phys. Rev. A. 57, R1497 (1998).
25. K. M. O'Hara et al., Phys. Rev. A. 66, 041401 (2002).
26. The transfer efficiency is limited by finite optical-trap depth and residual heating during the transfer.
27. K. Gibble, B. J. Verhaar, Phys. Rev. A. 52, 3370 (1995).
28. For our modest degeneracy, we can use a Gaussian approximation for the density distribution. The mean density is then lower than the peak density by a factor of 2√2.
29. Our estimate uses the direct mean field measurement of Bourdel et al. (39), scaled to our parameters.
30. C. Regal, D. S. Jin, preprint available at http://arXiv.org/abs/cond-mat/0302461 (2003).
31. Because of fermionic antisymmetry, there is no clock shift from interactions between atoms in states 12< and 13<. Mean-field shifts arise only during a decoherence time (see later in the text) but are negligible if the population of atoms in state 13< is small.
32. E. G. M. van Kempen et al., in preparation.
33. M. E. Gehm, S. L. Hemmer, S. R. Granade, K. M. O'Hara, J. E. Thomas, preprint available at http:// arXiv.org/abs/cond-mat/0212499 (2002).
34. 1, and all the shifts in this region were scaled up by a factor of 1.1 to 2.7 but still remained negligible.
35. J. V. Steele, preprint available at http://arXiv.org/abs/nucl-th/0010066 (2000).
36. H. Heiselberg, Phys. Rev. A. 63, 043606 (2001).
37. R. Combescot, preprint available at http://arXiv.org/abs/cond-mat/0302209 (2003).
38. K. M. O'Hara, S. L. Hemmer, M. E. Gehm, S. R. Granade, J. E. Thomas, Science 298, 2179 (2002).
39. T. Bourdel et al., preprint available at http://arXiv.org/abs/cond-mat/0303079 (2003).
40. 12 (39).
41. The work at MIT was supported by NSF, the Office of Naval Research, the Army Research Office, and NASA. The work at Eindhoven is part of the research program of the Stichting voor Fundamenteel Onderzoek der Materie, which is financially supported by the Nederlandse Organisatie voor Wetenschappelijk Onderzoek.