Multiply loaded magneto-optical trap

Myatt, C. J.; Newbury, Nathan R.; Ghrist, R. W.; Loutzenhiser, S.; Wieman, Carl

doi:10.1364/ol.21.000290

Cited by 112 publications

(71 citation statements)

References 10 publications

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“…During the launch ∼ √ 1000 photons are spontaneously emitted into the transverse plane, while in continuous schemes there is transverse cooling during extraction. As a result there is then no need for magnetic guiding [13], to achieve an elevated transfer efficiency.…”

Section: Comparison and Conclusionmentioning

confidence: 99%

An atom faucet

Wohlleben

Chevy

Madison

et al. 2001

The European Physical Journal D

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Abstract. We have constructed and modeled a simple and efficient source of slow atoms. From a background vapour loaded magneto-optical trap, a thin laser beam extracts a continuous jet of cold rubidium atoms. In this setup, the extraction column that is typical to leaking MOT systems is created without any optical parts placed inside the vacuum chamber. For detailed analysis, we present a simple 3D numerical simulation of the atomic motion in the presence of multiple saturating laser fields combined with an inhomogeneous magnetic field. At a pressure of P Rb87 = 1 × 10 −8 mbar, the moderate laser power of 10 mW per beam generates a jet of flux Φ = 1.3 × 10 8 atoms/s with a mean velocity of 14 m/s and a divergence of < 20 mrad.

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Section: Comparison and Conclusionmentioning

confidence: 99%

An atom faucet

Wohlleben

Chevy

Madison

et al. 2001

The European Physical Journal D

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“…This was obtained through evaporative cooling with a double magneto-optic trap (MOT) system as described in Ref. [15]. The first MOT repeatedly collected atoms from a background vapor and those atoms were transferred to another MOT in a low-pressure chamber.…”

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confidence: 99%

Magnetic Field Dependence of Ultracold Inelastic Collisions near a Feshbach Resonance

et al. 2000

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Inelastic collision rates for ultracold 85 Rb atoms in the F=2, m f =-2 state have been measured as a function of magnetic field. At 250 Gauss (G), the two-and three-body loss rates were measured to be K 2 =1.87±0.95±0.19 x 10 −14 cm 3 /s and K 3 =4.24 +0.70 −0.29 ±0.85 x 10 −25 cm 6 /s respectively. As the magnetic field is decreased from 250 G towards a Feshbach resonance at 155 G, the inelastic rates decrease to a minimum and then increase dramatically, peaking at the Feshbach resonance. Both two-and three-body losses are important, and individual contributions have been compared with theory.

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“…The record densities for the MOT are > 10 1 ί atoms/cm3 and the total number of atoms held. in a MOT can exceed 10 9 atoms [8].…”

Section: Manipulating the Atomic Position: Trap Basics And The Motmentioning

confidence: 99%

Quantum Control of Motional States of Neutral Atoms: Exploiting the External Degrees of Freedom

et al. 1998

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As research in quantum optics has advanced, so too has our ability to precisely tailor the quantum state of a system. Indeed, techniques for quantum state preparation have become sufficiently advanced that an entire subfield has appeared which has been given the name "quantum control".. Parallel to these advances have been other striking developments in quantum optics, in particular, laser cooling and trapping of nentral atoms. In this paper we describe some of the recent advancements in laser cooling, particularly in our laboratories, and point out that laser cooling and trapping is also realizing an important form of quantum control. In laser cooling, instead of exercising control over the internal quantum state of an atom or molecule or a laser field, we are instead controlling a complementary set of degrees of freedom: those of the external coordinates of the atom.

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Multiply loaded magneto-optical trap

Cited by 112 publications

References 10 publications

An atom faucet

An atom faucet

Magnetic Field Dependence of Ultracold Inelastic Collisions near a Feshbach Resonance

Quantum Control of Motional States of Neutral Atoms: Exploiting the External Degrees of Freedom

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