A Bose-Einstein condensate immersed in a Fermi sea: Observation of ultra-cold mixture of Bose and Fermi gases

L. Khaykovich; F. Schreck; J. Cubizolles; T. Bourdel; K. L. Corwin; G. Ferrari; C. Salomon

doi:10.1016/S0921-4526(02)01873-2

A Bose-Einstein condensate immersed in a Fermi sea: Observation of ultra-cold mixture of Bose and Fermi gases

L. Khaykovich, F. Schreck, J. Cubizolles, T. Bourdel, K. L. Corwin, G. Ferrari, C. Salomon

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Research output: Contribution to journal › Conference article › peer-review

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Abstract

We report the formation of mixtures of bosonic and fermionic quantum systems in dilute atomic gases. Two isotopes of lithium are cooled by standard laser cooling techniques and transferred into a magnetic trap. Evaporative cooling is performed selectively on the bosonic isotope (⁷Li), while its fermionic counterpart (⁶Li) is cooled sympathetically until simultaneous quantum degeneracy is reached. The ⁷Li Bose-Einstein condensate contains a very small fraction of thermal atoms and is in thermal equilibrium with ⁶Li Fermi sea at a temperature of 15 of the Fermi temperature.

Original language	English
Pages (from-to)	13-16
Number of pages	4
Journal	Physica B: Condensed Matter
Volume	329-333
DOIs	https://doi.org/10.1016/S0921-4526(02)01873-2
State	Published - May 2003
Externally published	Yes
Event	Proceedings of the 23rd international conference on low temper - Hiroshima, Japan Duration: 20 Aug 2002 → 27 Aug 2002

Bibliographical note

Funding Information:
We are grateful to Y. Castin, J. Dalibard, C. Cohen-Tannoudji and G. Shlyapnikov for useful discussions. F.S. and K.L.C. was supported by the DAAD and by MENRT, G.F. by the EU network CT 2000-00165 CAUAC. This work was supported by CNRS, Collège de France and Region Ile de France. Laboratoire Kastler Brossel is Unité de recherche de l'Ecole Normale Supérieure et de l'Université Pierre et Marie Curie, associée au CNRS.

Funding

We are grateful to Y. Castin, J. Dalibard, C. Cohen-Tannoudji and G. Shlyapnikov for useful discussions. F.S. and K.L.C. was supported by the DAAD and by MENRT, G.F. by the EU network CT 2000-00165 CAUAC. This work was supported by CNRS, Collège de France and Region Ile de France. Laboratoire Kastler Brossel is Unité de recherche de l'Ecole Normale Supérieure et de l'Université Pierre et Marie Curie, associée au CNRS.

Funders	Funder number
Collège de France
MENRT
Region Ile de France
Deutscher Akademischer Austauschdienst
Centre National de la Recherche Scientifique

Keywords

Bose-Einstein condensation
Fermi degenerate gas

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10.1016/S0921-4526(02)01873-2

Cite this

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abstract = "We report the formation of mixtures of bosonic and fermionic quantum systems in dilute atomic gases. Two isotopes of lithium are cooled by standard laser cooling techniques and transferred into a magnetic trap. Evaporative cooling is performed selectively on the bosonic isotope (7Li), while its fermionic counterpart (6Li) is cooled sympathetically until simultaneous quantum degeneracy is reached. The 7Li Bose-Einstein condensate contains a very small fraction of thermal atoms and is in thermal equilibrium with 6Li Fermi sea at a temperature of 15 of the Fermi temperature.",

keywords = "Bose-Einstein condensation, Fermi degenerate gas",

author = "L. Khaykovich and F. Schreck and J. Cubizolles and T. Bourdel and Corwin, {K. L.} and G. Ferrari and C. Salomon",

note = "Funding Information: We are grateful to Y. Castin, J. Dalibard, C. Cohen-Tannoudji and G. Shlyapnikov for useful discussions. F.S. and K.L.C. was supported by the DAAD and by MENRT, G.F. by the EU network CT 2000-00165 CAUAC. This work was supported by CNRS, Coll{\`e}ge de France and Region Ile de France. Laboratoire Kastler Brossel is Unit{\'e} de recherche de l'Ecole Normale Sup{\'e}rieure et de l'Universit{\'e} Pierre et Marie Curie, associ{\'e}e au CNRS.; Proceedings of the 23rd international conference on low temper ; Conference date: 20-08-2002 Through 27-08-2002",

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AU - Khaykovich, L.

AU - Schreck, F.

AU - Cubizolles, J.

AU - Bourdel, T.

AU - Corwin, K. L.

AU - Ferrari, G.

AU - Salomon, C.

N1 - Funding Information: We are grateful to Y. Castin, J. Dalibard, C. Cohen-Tannoudji and G. Shlyapnikov for useful discussions. F.S. and K.L.C. was supported by the DAAD and by MENRT, G.F. by the EU network CT 2000-00165 CAUAC. This work was supported by CNRS, Collège de France and Region Ile de France. Laboratoire Kastler Brossel is Unité de recherche de l'Ecole Normale Supérieure et de l'Université Pierre et Marie Curie, associée au CNRS.

PY - 2003/5

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N2 - We report the formation of mixtures of bosonic and fermionic quantum systems in dilute atomic gases. Two isotopes of lithium are cooled by standard laser cooling techniques and transferred into a magnetic trap. Evaporative cooling is performed selectively on the bosonic isotope (7Li), while its fermionic counterpart (6Li) is cooled sympathetically until simultaneous quantum degeneracy is reached. The 7Li Bose-Einstein condensate contains a very small fraction of thermal atoms and is in thermal equilibrium with 6Li Fermi sea at a temperature of 15 of the Fermi temperature.

AB - We report the formation of mixtures of bosonic and fermionic quantum systems in dilute atomic gases. Two isotopes of lithium are cooled by standard laser cooling techniques and transferred into a magnetic trap. Evaporative cooling is performed selectively on the bosonic isotope (7Li), while its fermionic counterpart (6Li) is cooled sympathetically until simultaneous quantum degeneracy is reached. The 7Li Bose-Einstein condensate contains a very small fraction of thermal atoms and is in thermal equilibrium with 6Li Fermi sea at a temperature of 15 of the Fermi temperature.

KW - Bose-Einstein condensation

KW - Fermi degenerate gas

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ER -

A Bose-Einstein condensate immersed in a Fermi sea: Observation of ultra-cold mixture of Bose and Fermi gases

Abstract

Bibliographical note

Funding

Keywords

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