Bose-Einstein condensates and degenerate Fermi gases

We report on an improved scheme to generate Bose-Einstein condensates (BECs) and degenerate Fermi gases of strontium. This scheme allows us to create quantum gases with higher atom number, a shorter time of the experimental cycle, or deeper quantum degeneracy than before. We create a BEC of ${}^{84}$ Sr exceeding ${10}^{7}$ atoms, which is a 30-fold improvement over previously reported experiments. We increase the atom number of ${}^{86}$ Sr BECs to $2.5\ifmmode\times\else\texttimes\fi{}{10}^{4}$ (a fivefold improvement) and refine the generation of attractively interacting ${}^{88}$ Sr BECs. We present a scheme to generate ${}^{84}$ Sr BECs with a cycle time of 2 s. We create deeply degenerate ${}^{87}$ Sr Fermi gases with $T/{T}_{F}$ as low as 0.10(1), where the number of populated nuclear spin states can be set to any value between one and ten. Furthermore, we report on a total of five different double-degenerate Bose-Bose and Bose-Fermi mixtures. These studies prepare an excellent starting point for applications of strontium quantum gases anticipated in the near future.We report on an improved scheme to generate Bose-Einstein condensates (BECs) and degenerate Fermi gases of strontium. This scheme allows us to create quantum gases with higher atom number, a shorter time of the experimental cycle, or deeper quantum degeneracy than before. We create a BEC of ${}^{84}$Sr exceeding ${10}^{7}$ atoms, which is a 30-fold improvement over previously reported experiments. We increase the atom number of ${}^{86}$Sr BECs to $2.5\ifmmode\times\else\texttimes\fi{}{10}^{4}$ (a fivefold improvement) and refine the generation of attractively interacting ${}^{88}$Sr BECs. We present a scheme to generate ${}^{84}$Sr BECs with a cycle time of 2 s. We create deeply degenerate ${}^{87}$Sr Fermi gases with $T/{T}_{F}$ as low as 0.10(1), where the number of populated nuclear spin states can be set to any value between one and ten. Furthermore, we report on a total of five different double-degenerate Bose-Bose and Bose-Fermi mixtures. These studies prepare an excellent starting point for applications of strontium quantum gases anticipated in the near future.

arXiv:1212.2539Physical Review AJan 14, 2013102 citations

Degenerate Fermi and Bose Gases

Gordon Walter Semenoff

Graduate texts in physicsJan 1, 20230 citations

Degenerate Quantum Gases and Bose-Einstein Condensation

Luca Salasnich

After a brief historical introduction to Bose-Einstein condensation and Fermi degeneracy, we discuss theoretical results we have recentely obtained for trapped degenerate quantum gases by means of a thermal field theory approach. In particular, by using Gross-Pitaevskii and Bogoliubov-Popov equations, we consider thermodynamical properties of two Bosonic systems: a gas of Lithium atoms and a gas of Hydrogen atoms. Finally, we investigate finite-temperature density profiles of a dilute Fermi gas of Potassium atoms confined in a harmonic potential.After a brief historical introduction to Bose-Einstein condensation and Fermi degeneracy, we discuss theoretical results we have recentely obtained for trapped degenerate quantum gases by means of a thermal field theory approach. In particular, by using Gross-Pitaevskii and Bogoliubov-Popov equations, we consider thermodynamical properties of two Bosonic systems: a gas of Lithium atoms and a gas of Hydrogen atoms. Finally, we investigate finite-temperature density profiles of a dilute Fermi gas of Potassium atoms confined in a harmonic potential.

arXiv:cond-mat/0012223Dec 13, 20000 citations

Mixtures of degenerate Fermi and Bose gases

Lev Khaykovich, J. Cubizolles, Thomas Bourdel +5 more

International Conference on Atomic Physics (ICAP)Apr 1, 20031 citation

Fermi and Bose Gases

Wiley eBooksMay 6, 20140 citations

{}^{84}

Sr exceeding

{10}^{7}

atoms, which is a 30-fold improvement over previously reported experiments. We increase the atom number of

{}^{86}

Sr BECs to $2.5\ifmmode\times\else\texttimes\fi{}{10}^{4}$ (a fivefold improvement) and refine the generation of attractively interacting

{}^{88}

Sr BECs. We present a scheme to generate

{}^{84}

Sr BECs with a cycle time of 2 s. We create deeply degenerate

{}^{87}

Sr Fermi gases with

T/{T}_{F}

as low as 0.10(1), where the number of populated nuclear spin states can be set to any value between one and ten. Furthermore, we report on a total of five different double-degenerate Bose-Bose and Bose-Fermi mixtures. These studies prepare an excellent starting point for applications of strontium quantum gases anticipated in the near future.