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We achieve a highly degenerate and strongly interacting Fermi gas in a mixture of the two lowest hyperfine states of $^6$Li by direct evaporative cooling in a high power crossed optical dipole trap. The trap is loaded from a large atom…

Quantum Gases · Physics 2015-05-20 Shujing Deng , Pengpeng Diao , Qianli Yu , Haibin Wu

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 report on the first experimental setup based on a 2D-/3D-MOT scheme to create both Bose-Einstein condensates and degenerate Fermi gases of several ytterbium isotopes. Our setup does not require a Zeeman slower and offers the flexibility…

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

We demonstrate a new magneto-optical trap (MOT) configuration using a simple pair of crossed wires rotated at 45 deg and an appropriate bias field to generate a MOT of >10^8 atoms. The same pair of wires, with slightly adjusted control…

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 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 report on the design, implementation, and performance of a compact two-dimensional magneto-optical trap (2D MOT) for cesium. In a small-volume vacuum chamber, the setup uses cesium dispensers in close proximity to the trapping region of…

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 demonstrate a simple scheme to reach Bose-Einstein condensation (BEC) of metastable triplet helium atoms using a single beam optical dipole trap with moderate power of less than 3 W. Our scheme is based on RF-induced evaporative cooling…

Quantum Gases · Physics 2016-11-10 Adonis Silva Flores , Hari Prasad Mishra , Wim Vassen , Steven Knoop

We present an apparatus designed for studies of atom-surface interactions using quantum degenerate gases of $^{85}$Rb and $^{87}$Rb in the vicinity of a room temperature dielectric surface. The surface to be investigated is a super-polished…

Atomic Physics · Physics 2015-05-30 S. Haendel , A. L. Marchant , T. P. Wiles , S. A. Hopkins , S. L. Cornish

Although quantum degenerate gases of neutral atoms have shown remarkable progress in the study of many body quantum physics, condensed matter physics, precision measurements, and quantum information processing, experimental progress is…

Quantum Gases · Physics 2018-06-28 D. S. Naik , G. Kuyumjyan , D. Pandey , P. Bouyer , A. Bertoldi

Bose-Einstein condensates (BECs) have been proposed for many applications in atom interferometry, as their coherence over long evolution times promises unprecedented sensitivity. To date, BECs can be efficiently created in devices using…

The recent achievement of Bose-Einstein condensation of chromium atoms [1] has opened longed-for experimental access to a degenerate quantum gas with long-range and anisotropic interaction. Due to the large magnetic moment of chromium atoms…

Other Condensed Matter · Physics 2007-05-23 Axel Griesmaier , Jürgen Stuhler , Tilman Pfau

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 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 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 present and characterize an experimental system in which we achieve the integration of an ultrahigh finesse optical cavity with a Bose-Einstein condensate (BEC). The conceptually novel design of the apparatus for the production of BECs…

Other Condensed Matter · Physics 2016-08-16 Anton Öttl , Stephan Ritter , Michael Köhl , Tilman Esslinger

We report on an efficient production scheme for a large quantum degenerate sample of fermionic lithium. The approach is based on our previous work on narrow-line $ 2S_{1/2}\rightarrow 3P_{3/2} $ laser cooling resulting in a high phase-space…

Quantum Gases · Physics 2016-06-01 Ch. Gross , H. C. J. Gan , K. Dieckmann

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
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