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We report the realisation of Bose-Einstein condensation (BEC) of metastable helium atoms using an in-vacuum coil magnetic trap and a crossed beam optical dipole trap. A novel quadrupole-Ioffe configuration (QUIC) magnetic trap made from…

Quantum Gases · Physics 2021-05-26 A. H. Abbas , X. Meng , R. S. Patil , J. A. Ross , A. G. Truscott , S. S. Hodgman

We have realized Bose-Einstein condensation (BEC) of 87Rb in the F=2, m_F=2 hyperfine substate in a hybrid trap, consisting of a quadrupole magnetic field and a single optical dipole beam. The symmetry axis of the quadrupole magnetic trap…

Quantum Gases · Physics 2015-02-23 Hari Prasad Mishra , Adonis Silva Flores , Wim Vassen , Steven Knoop

We report on a simple novel trapping scheme for the generation of Bose-Einstein condensates of $^{87}$Rb atoms. This scheme employs a near-infrared single beam optical dipole trap combined with a weak magnetic quadrupole field as used for…

Quantum Gases · Physics 2014-06-26 M. Zaiser , J. Hartwig , D. Schlippert , U. Velte , N. Winter , V. Lebedev , W. Ertmer , E. M. Rasel

We report an apparatus and method capable of producing Bose-Einstein condensates (BECs) of ~1x10^6 87Rb atoms, and ultimately designed for sympathetic cooling of 133Cs and the creation of ultracold RbCs molecules. The method combines…

Atomic Physics · Physics 2015-05-27 D. L. Jenkin , D. J. McCarron , M. P. Köppinger , H. -W. Cho , S. A. Hopkins , S. L. Cornish

We report on the realization of a sodium Bose--Einstein condensate (BEC) in a combined red-detuned optical dipole trap, formed by two beams crossing in a horizontal plane and a third, tightly focused dimple trap propagating vertically. We…

Atomic Physics · Physics 2015-05-27 David Jacob , Emmanuel Mimoun , Luigi De Sarlo , Martin Weitz , J. Dalibard , F. Gerbier

We report on the Bose-Einstein condensation of metastable Helium-4 atoms using a hybrid approach, consisting of a magnetic quadrupole and a crossed optical dipole trap. In our setup we cross the phase transition with 2x10^6 atoms, and we…

Quantum Gases · Physics 2015-06-23 Q. Bouton , R. Chang , A. L. Hoendervanger , F. Nogrette , A. Aspect , C. I. Westbrook , D. Clément

We report the all-optical production of a Rb87 Bose-Einstein condensate (BEC) in a simple 1.06 micron dipole trap experiment. We load a single beam dipole trap directly from a magneto-optic trap (MOT) using an optimized loading sequence.…

Quantum Physics · Physics 2011-05-11 K. J. Arnold , M. D. Barrett

We report on the production of a rubidium Bose-Einstein condensate in a simplified vacuum apparatus. Magneto-optical traps with large numbers and ultra-high vacuum for moderately long conservative trap lifetimes of 16 seconds are…

Quantum Gases · Physics 2013-03-05 Dezhi Xiong , Fudong Wang , Xiaoke Li , Ting-Fai Lam , Dajun Wang

We report the realization of a BEC of metastable helium-4 atoms (4He*) in an all optical potential. Up to 10^5 spin polarized 4He* atoms are condensed in an optical dipole trap formed from a single, focused, vertically propagating far…

Quantum Gases · Physics 2010-05-31 G. B. Partridge , J. -C. Jaskula , M. Bonneau , D. Boiron , C. I. Westbrook

We report a novel approach for preparing a Bose-Einstein condensate (BEC) of $^{87}$Rb atoms using electro-pneumatically driven transfer of atoms into a Quadrupole-Ioffe magnetic trap (QUIC Trap). More than 5$\times$$10^{8}$ atoms from a…

Atomic Physics · Physics 2015-06-22 Sunil Kumar , Sumit Sarkar , Gunjan Verma , Chetan Vishwakarma , Md. Noaman , Umakant Rapol

We describe an apparatus for quickly and simply producing $\Rb87$ Bose-Einstein condensates. It is based on a magnetic quadrupole trap and a red detuned optical dipole trap. We collect atoms in a magneto-optical trap (MOT) and then capture…

Quantum Gases · Physics 2015-05-13 Y. -J. Lin , A. R. Perry , R. L. Compton , I. B. Spielman , J. V. Porto

We present an optimized strategy for the production of tightly confined Bose-Einstein condensates (BEC) of 87Rb in a crossed dipole trap with direct loading from a magneto-optical trap. The dipole trap is created with light of a…

Quantum Gases · Physics 2011-11-03 Thomas Lauber , Johannes Kueber , Oliver Wille , Gerhard Birkl

We present a compact experimental apparatus for Bose-Einstein condensation of $^{87}$Rb in the $|F = 2, m_F = +2\rangle$ state. A pre-cooled atomic beam of $^{87}$Rb is obtained by using an unbalanced magneto-optical trap, allowing…

We demonsatrate an all optical technique to evaporatively produce sodium Bose-Einstein condensates (BEC). We use a crossed-dipole trap formed from light near 1060 nm, and a simple ramp of the intensity to force evaporation. In addition, we…

Atomic Physics · Physics 2009-11-11 R. Dumke , M. Johanning , E. Gomez , J. D. Weinstein , K. M. Jones , P. D. Lett

We describe an apparatus that efficiently produces $^{23}$Na Bose-Einstein condensates (BECs) in a hybrid trap that combines a quadrupole magnetic field with a far-detuned optical dipole trap. Using a Bayesian optimization framework, we…

We present a novel route to Bose-Einstein condensation devised for two-electron atoms, which do not admit practicable cooling techniques based upon narrow intercombination lines. A dipole trap for $^{40}$Ca atoms in the singlet ground state…

Quantum Gases · Physics 2012-11-13 Purbasha Halder , Chih-Yun Yang , Andreas Hemmerich

We present a novel concept for a compact and robust crossed-beam optical dipole trap (cODT) based on a single lens, designed for the efficient generation of Bose-Einstein condensates (BECs) under dynamic conditions. The system employs two…

Quantum Physics · Physics 2026-04-20 Jan Simon Haase , Alexander Fieguth , Igor Bröckel , Janina Hamann , Jens Kruse , Carsten Klempt

We have experimentally produced rubidium Bose-Einstein condensate in an optically-plugged magnetic quadrupole (OPQ) trap. A far blue-detuned focused laser beam with a wavelength of 532 nm is plugged in the center of the magnetic quadrupole…

Quantum Gases · Physics 2017-08-08 Dong-Fang Zhang , Tian-You Gao , Ling-Ran Kong , Kai Li , Kai-Jun Jiang

We produce Bose-Einstein condensates of 6Li2 molecules in a low power (22 W) crossed optical dipole trap. Fermionic 6Li atoms are collected in a magneto-optical trap from a Zeeman slowed atomic beam, then loaded into the optical dipole trap…

Other Condensed Matter · Physics 2009-11-13 J. Fuchs , G. J. Duffy , G. Veeravalli , P. Dyke , M. Bartenstein , C. J. Vale , P. Hannaford , W. J. Rowlands

Quantum gases of rare-earth elements are of interest due to the large magnetic moment of many of those elements, leading to strong dipole-dipole interactions, as well as an often nonvanishing orbital angular momentum in the electronic…

Atomic Physics · Physics 2017-04-19 Jens Ulitzsch , Daniel Babik , Roberto Roell , Martin Weitz
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