메뉴 건너뛰기




Volumn 302, Issue 5653, 2003, Pages 2101-2103

Bose-Einstein Condensation of Molecules

Author keywords

[No Author keywords available]

Indexed keywords

COOLING; EVAPORATION; FERMIONS; LITHIUM; MAGNETIC FIELD EFFECTS; RESONANCE;

EID: 0346362491     PISSN: 00368075     EISSN: None     Source Type: Journal    
DOI: 10.1126/science.1093280     Document Type: Article
Times cited : (1107)

References (44)
  • 7
    • 0141483759 scopus 로고    scopus 로고
    • published online 21 August 2003 (10.1126/science.1088876)
    • J. Herbig et al., Science 301, 1510 (2003); published online 21 August 2003 (10.1126/science.1088876).
    • (2003) Science , vol.301 , pp. 1510
    • Herbig, J.1
  • 9
    • 0346430564 scopus 로고    scopus 로고
    • K. Xu, et al. preprint available at http://arxiv.org/abs/ cond-mat/0310027.
    • Xu, K.1
  • 13
    • 26744451451 scopus 로고    scopus 로고
    • in press
    • S. Jochim et al., Phys. Rev. Lett., in press (preprint available at http://arxiv.org/abs/cond-mat/0308095).
    • Phys. Rev. Lett.
    • Jochim, S.1
  • 14
    • 0032510561 scopus 로고    scopus 로고
    • S. Inouye et al., Nature 392, 151 (1998).
    • (1998) Nature , vol.392 , pp. 151
    • Inouye, S.1
  • 23
    • 0347691444 scopus 로고    scopus 로고
    • note
    • The position of the Feshbach resonance is known to within a few tens of Gauss. All numbers given for the scattering lengths and binding energies are subject to a corresponding systematic error.
  • 25
    • 0000408190 scopus 로고    scopus 로고
    • A. Mosk et al., Opt. Lett. 26, 1837 (2001).
    • (2001) Opt. Lett. , vol.26 , pp. 1837
    • Mosk, A.1
  • 26
    • 0345799441 scopus 로고    scopus 로고
    • note
    • We measure the atom number via fluorescence detection after recapture into a magneto-optical trap. In order to avoid molecule formation and loss when the Feshbach tuning field is ramped down before detection, we heat the sample by abruptly turning on the full laser power of the optical dipole trap. At low phase-space densities, the thermal gas is not affected by the downward Feshbach ramp (13).
  • 28
    • 0347691445 scopus 로고    scopus 로고
    • note
    • We know that only the weakly bound state is populated, because the release of binding energy in a three-body process would otherwise lead to immediate trap loss. Moreover, our dissociation-based detection is sensitive only to molecules in this state.
  • 29
    • 0347060732 scopus 로고    scopus 로고
    • C. Chin, R. Grimm, preprint available at http://arxiv. org/abs/cond-mat/0309078.
    • Chin, C.1    Grimm, R.2
  • 31
    • 0346430539 scopus 로고    scopus 로고
    • note
    • z at 764 G as compared to 1176 G gives another factor of 1.24.
  • 35
    • 0345799442 scopus 로고    scopus 로고
    • note
    • A noncondensed ensemble in the hydrodynamic regime, where the elastic collision rate exceeds all other time scales, would rapidly cool down by evaporation to temperatures far below the trap depth and thus form a BEC.
  • 38
    • 0042028010 scopus 로고    scopus 로고
    • A. Cho, Science 301, 750 (2003).
    • (2003) Science , vol.301 , pp. 750
    • Cho, A.1
  • 44
    • 0345799438 scopus 로고    scopus 로고
    • note
    • We thank P. Zoller for very useful discussions and for stimulating the measurement of the collective excitation frequency. We acknowledge support by the Austrian Science Fund (FWF) within Spezialforschungsbereich 15 (project part 15) and by the European Union through the Cold Molecules Training and Mobility of Researchers Network under contract no. HPRN-CT-2002-00290. C.C. is a Lise-Meitner fellow of the FWF.


* 이 정보는 Elsevier사의 SCOPUS DB에서 KISTI가 분석하여 추출한 것입니다.