Motion of a Solitonic Vortex in the BEC-BCS Crossover

We observe a long-lived solitary wave in a superfluid Fermi gas of [superscript 6]Li atoms after phase imprinting. Tomographic imaging reveals the excitation to be a solitonic vortex, oriented transverse to the long axis of the cigar-shaped atom cloud. The precessional motion of the vortex is direct...

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Main Authors: Ji, Wenjie (Contributor), Mukherjee, Biswaroop (Contributor), Cheuk, Lawrence W. (Contributor), Yefsah, Tarik (Contributor), Guardado Sanchez, Elmer (Contributor), Zwierlein, Martin Wolfram (Contributor), Ku, Mark J. H. (Author)
Other Authors: Massachusetts Institute of Technology. Department of Physics (Contributor), MIT-Harvard Center for Ultracold Atoms (Contributor), Ku, Mark Jen-Hao (Contributor)
Format: Article
Language:English
Published: American Physical Society, 2014-08-11T16:40:01Z.
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Online Access:Get fulltext
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042 |a dc 
100 1 0 |a Ji, Wenjie  |e author 
100 1 0 |a Massachusetts Institute of Technology. Department of Physics  |e contributor 
100 1 0 |a MIT-Harvard Center for Ultracold Atoms  |e contributor 
100 1 0 |a Ku, Mark Jen-Hao  |e contributor 
100 1 0 |a Ji, Wenjie  |e contributor 
100 1 0 |a Mukherjee, Biswaroop  |e contributor 
100 1 0 |a Guardado Sanchez, Elmer  |e contributor 
100 1 0 |a Cheuk, Lawrence W.  |e contributor 
100 1 0 |a Yefsah, Tarik  |e contributor 
100 1 0 |a Zwierlein, Martin Wolfram  |e contributor 
700 1 0 |a Mukherjee, Biswaroop  |e author 
700 1 0 |a Cheuk, Lawrence W.  |e author 
700 1 0 |a Yefsah, Tarik  |e author 
700 1 0 |a Guardado Sanchez, Elmer  |e author 
700 1 0 |a Zwierlein, Martin Wolfram  |e author 
700 1 0 |a Ku, Mark J. H.  |e author 
245 0 0 |a Motion of a Solitonic Vortex in the BEC-BCS Crossover 
260 |b American Physical Society,   |c 2014-08-11T16:40:01Z. 
856 |z Get fulltext  |u http://hdl.handle.net/1721.1/88665 
520 |a We observe a long-lived solitary wave in a superfluid Fermi gas of [superscript 6]Li atoms after phase imprinting. Tomographic imaging reveals the excitation to be a solitonic vortex, oriented transverse to the long axis of the cigar-shaped atom cloud. The precessional motion of the vortex is directly observed, and its period is measured as a function of the chemical potential in the BEC-BCS crossover. The long period and the correspondingly large ratio of the inertial to the bare mass of the vortex are in good agreement with estimates based on superfluid hydrodynamics that we derive here using the known equation of state in the BEC-BCS crossover. 
520 |a National Science Foundation (U.S.) 
520 |a United States. Army Research Office. Multidisciplinary University Research Initiative on Atomtronics 
520 |a United States. Air Force Office of Scientific Research. Presidential Early Career Award for Scientists and Engineers 
520 |a United States. Office of Naval Research 
520 |a United States. Defense Advanced Research Projects Agency. Optical Lattice Emulator Program 
520 |a David & Lucile Packard Foundation 
546 |a en 
655 7 |a Article 
773 |t Physical Review Letters