An adiabatic trap with combined magnetic field

Baiborodov, Yu.T.; Ioffe, M. S.; Петров, В. М.; Sobolev, R.I.

doi:10.1007/bf01121888

Cited by 5 publications

(1 citation statement)

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“…The team first generated a BEC of approximately one hundred thousand rubidium atoms within a cylindrically shaped magnetic trap produced on a microchip [4]. To excite the collective-mode oscillation, the researchers quickly reduced the trap magnetic bias field along one direction, while increasing the trapping strength in the other two directions.…”

Section: Figurementioning

confidence: 99%

3D Collimation of Matter Waves

Tamma

2021

Physics

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3D Collimation of Matter WavesAn innovative matter-wave lens exploiting atomic interactions is able to slow the expansion of a Bose-Einstein condensate in three dimensions, thus reaching unprecedented ultralow temperatures. By Vincenzo TammaA t ultralow temperatures, dilute atomic gases manifest their full quantum nature as matter waves in the form of Bose-Einstein condensates (BECs). Through the interference of matter waves in an interferometer, researchers

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Section: Figurementioning

confidence: 99%

3D Collimation of Matter Waves

Tamma

2021

Physics

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Microinstabilities in Axisymmetric Mirror Machines

Horton¹,

Callen

Rosenbluth

1971

The Physics of Fluids

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The stability theory of electrostatic modes is formulated for a general axisymmetric magnetic mirror trap. For a low-β plasma with a small average gyroradius, the integral wave equation is derived for general variations in the perturbation and the equilibrium. The single-particle orbits used in the theory are calculated correct to the second order in the gyroradius expansion parameter. In special wave-frequency ranges additional expansions give previously studied forms of the mode equation. Criteria for the occurrence of flutelike modes and localized modes are given and the stability conditions discussed.

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Modification of the macroscopic stability of a tandem mirror by partial line-tying

Molvik

Breun

Golovato

et al. 1984

The Physics of Fluids

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Increased stability is observed during experiments with gun injection in the Phaedrus tandem mirror. This is manifested by three effects. First, a magnetic mirror cell with bad average curvature, adjacent to a plasma gun, confines plasma with betas up to 20%. Second, the central cell, also with bad curvature, is stable at betas up to 20%, exceeding the minimum-B interchange stability limit by a factor of 20. Third, the quadrupole magnetic field required for interchange stability is reduced. These effects are shown to agree with a theory of line-tying stabilization, supplemented by minimum-B stabilization.

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An adiabatic trap with combined magnetic field

Cited by 5 publications

References 1 publication

3D Collimation of Matter Waves

3D Collimation of Matter Waves

Microinstabilities in Axisymmetric Mirror Machines

Modification of the macroscopic stability of a tandem mirror by partial line-tying

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