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Bose-Einstein condensation of rubidium-87 atoms in a magnetic trap

Dian-Jiun Han

Jan 1, 19980 citations

Production of Rubidium Bose-Einstein Condensate in an Optically Plugged Magnetic Quadrupole Trap

Dongfang, Zhang, Tianyou +7 more

Chinese Physics LettersJan 1, 20160 citations

Laser Cooling and Bose-Einstein Condensation. Experimental Techniques for Bose-Einstein Condensation of Rubidium Atoms.

Yoshio Torii

Experimental techniques to produce and observe a Bose-Einstein condensate of rubidium atoms are presented. The atoms are first optically cooled and trapped in an ultra-high vacuum (-10-11 torr) glass cell using a double magneto-optical trap, and then transferred to a “cloverleaf” magnetic trap. Rf-induced evaporation is performed to further cool the magnetically trapped atoms below the phase transition of Bose-Einstein condensation. The velocity distribution (inferred by absorption imaging) of the cooled atomic cloud clearly shows the expected bi-modal structure characteristic of a condensateExperimental techniques to produce and observe a Bose-Einstein condensate of rubidium atoms are presented. The atoms are first optically cooled and trapped in an ultra-high vacuum (-10-11 torr) glass cell using a double magneto-optical trap, and then transferred to a “cloverleaf” magnetic trap. Rf-induced evaporation is performed to further cool the magnetically trapped atoms below the phase transition of Bose-Einstein condensation. The velocity distribution (inferred by absorption imaging) of the cooled atomic cloud clearly shows the expected bi-modal structure characteristic of a condensate

The Review of Laser EngineeringJan 1, 20001 citation

Bose-Einstein condensation of rubidium atoms in a triaxial TOP trap

Jörg Helge Müller, D. Ciampini, O. Morsch +5 more

We report the results of experiments with Bose-Einstein condensates of rubidium atoms in a triaxial TOP trap, presenting measurements of the condensate fraction and the free expansion of a condensate released from the trap. The experimental apparatus and the methods used to calibrate the magnetic trapping fields are discussed in detail. Furthermore, we compare the performance of our apparatus with other TOP traps and discuss possible limiting factors for the size of condensates achievable in such traps.We report the results of experiments with Bose-Einstein condensates of rubidium atoms in a triaxial TOP trap, presenting measurements of the condensate fraction and the free expansion of a condensate released from the trap. The experimental apparatus and the methods used to calibrate the magnetic trapping fields are discussed in detail. Furthermore, we compare the performance of our apparatus with other TOP traps and discuss possible limiting factors for the size of condensates achievable in such traps.

arXiv:cond-mat/0005133Journal of Physics B Atomic Molecular and Optical PhysicsSep 15, 200025 citations

Bose-Einstein Condensation of Rubidium

Daniel Frese

Jan 1, 20050 citations

Bose-Einstein Condensation in a Quadrupole-Ioffe Configuration Trap

Tilman Esslinger, Immanuel Bloch, Theodor W. Hänsch

We demonstrate Bose-Einstein condensation of rubidium atoms in a simple low-power magnetic trap. This trap combines the quadrupole with the Ioffe configuration ~QUIC trap! and consists of just three coils. Magneto-optically trapped Rb atoms are first loaded into the linear trapping potential of a magnetic quadrupole, which is then converted into the parabolic geometry of an Ioffe trap. During this process two spherical quadrupole traps with perpendicular axes merge and the trapped atomic cloud moves close to the magnetic field producing coils, resulting in tight confinement of the atoms while the power dissipation of the trap remains low. The magnetically trapped atoms are cooled to below the phase transition of Bose-Einstein condensation by rf-induced evaporation. @S1050-2947~98!51210-3#We demonstrate Bose-Einstein condensation of rubidium atoms in a simple low-power magnetic trap. This trap combines the quadrupole with the Ioffe configuration ~QUIC trap! and consists of just three coils. Magneto-optically trapped Rb atoms are first loaded into the linear trapping potential of a magnetic quadrupole, which is then converted into the parabolic geometry of an Ioffe trap. During this process two spherical quadrupole traps with perpendicular axes merge and the trapped atomic cloud moves close to the magnetic field producing coils, resulting in tight confinement of the atoms while the power dissipation of the trap remains low. The magnetically trapped atoms are cooled to below the phase transition of Bose-Einstein condensation by rf-induced evaporation. @S1050-2947~98!51210-3#

European Quantum Electronics Conference (EQEC)Aug 24, 20052 citations

Magnetic trapping of rubidium atoms for Bose-Einstein condensation

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