QUANTUM GASES Two- and three-body contacts in the unitary Bose gas

被引:87
作者
Fletcher, Richard J. [1 ]
Lopes, Raphael [1 ]
Man, Jay [1 ]
Navon, Nir [1 ]
Smith, Robert P. [1 ]
Zwierlein, Martin W. [2 ,3 ]
Hadzibabic, Zoran [1 ]
机构
[1] Univ Cambridge, Cavendish Lab, J J Thomson Ave, Cambridge CB3 0HE, England
[2] MIT, MIT Harvard Ctr Ultracold Atoms, Dept Phys, Cambridge, MA 02139 USA
[3] MIT, Elect Res Lab, Cambridge, MA 02139 USA
基金
英国工程与自然科学研究理事会; 欧洲研究理事会; 美国国家科学基金会;
关键词
SYSTEM;
D O I
10.1126/science.aai8195
中图分类号
O [数理科学和化学]; P [天文学、地球科学]; Q [生物科学]; N [自然科学总论];
学科分类号
07 ; 0710 ; 09 ;
摘要
In many-body systems governed by pairwise contact interactions, a wide range of observables is linked by a single parameter, the two-body contact, which quantifies two-particle correlations. This profound insight has transformed our understanding of strongly interacting Fermi gases. Using Ramsey interferometry, we studied coherent evolution of the resonantly interacting Bose gas, and we show here that it cannot be explained by only pairwise correlations. Our experiments reveal the crucial role of three-body correlations arising from Efimov physics and provide a direct measurement of the associated three- body contact.
引用
收藏
页码:377 / +
页数:4
相关论文
共 38 条
  • [1] Efimov correlations in strongly interacting Bose gases
    Barth, Marcus
    Hofmann, Johannes
    [J]. PHYSICAL REVIEW A, 2015, 92 (06):
  • [2] Coherence and clock shifts in ultracold fermi gases with resonant interactions
    Baym, Gordon
    Pethick, C. J.
    Yu, Zhenhua
    Zwierlein, Martin W.
    [J]. PHYSICAL REVIEW LETTERS, 2007, 99 (19)
  • [3] Universal relation for the inelastic two-body loss rate
    Braaten, Eric
    Hammer, H-W
    [J]. JOURNAL OF PHYSICS B-ATOMIC MOLECULAR AND OPTICAL PHYSICS, 2013, 46 (21)
  • [4] Universal Relations for Identical Bosons from Three-Body Physics
    Braaten, Eric
    Kang, Daekyoung
    Platter, Lucas
    [J]. PHYSICAL REVIEW LETTERS, 2011, 106 (15)
  • [5] Short-Time Operator Product Expansion for rf Spectroscopy of a Strongly Interacting Fermi Gas
    Braaten, Eric
    Kang, Daekyoung
    Platter, Lucas
    [J]. PHYSICAL REVIEW LETTERS, 2010, 104 (22)
  • [6] Efficient production of large 39K Bose-Einstein condensates
    Campbell, Robert L. D.
    Smith, Robert P.
    Tammuz, Naaman
    Beattie, Scott
    Moulder, Stuart
    Hadzibabic, Zoran
    [J]. PHYSICAL REVIEW A, 2010, 82 (06):
  • [7] Four-Body Efimov Effect for Three Fermions and a Lighter Particle
    Castin, Yvan
    Mora, Christophe
    Pricoupenko, Ludovic
    [J]. PHYSICAL REVIEW LETTERS, 2010, 105 (22)
  • [8] Ultrafast many-body interferometry of impurities coupled to a Fermi sea
    Cetina, Marko
    Jag, Michael
    Lous, Rianne S.
    Fritsche, Isabella
    Walraven, Jook T. M.
    Grimm, Rudolf
    Levinsen, Jesper
    Parish, Meera M.
    Schmidt, Richard
    Knap, Michael
    Demler, Eugene
    [J]. SCIENCE, 2016, 354 (6308) : 96 - 99
  • [9] Strongly correlated Bose gases
    Chevy, F.
    Salomon, C.
    [J]. JOURNAL OF PHYSICS B-ATOMIC MOLECULAR AND OPTICAL PHYSICS, 2016, 49 (19)
  • [10] Feshbach resonances in ultracold gases
    Chin, Cheng
    Grimm, Rudolf
    Julienne, Paul
    Tiesinga, Eite
    [J]. REVIEWS OF MODERN PHYSICS, 2010, 82 (02) : 1225 - 1286