Anharmonic mixing in a magnetic trap

R. Gommers; B.J. Claessens; C.J. Hawthorn; H.C.W. Beijerinck; E.J.D. Vredenbregt

Anharmonic mixing in a magnetic trap

R. Gommers
, B.J. Claessens
, C.J. Hawthorn
, H.C.W. Beijerinck
, E.J.D. Vredenbregt

Coherence and Quantum Technology

Research output: Chapter in Book/Report/Conference proceeding › Conference contribution › Academic › peer-review

Abstract

We have experimentally observed re-equilibration of a magnetically trapped cloud of metastable neon atoms after it was put in a non-equilibrium state. Using numerical simulations we show that anharmonic mixing, equilibration due to the collisionless dynamics of atoms in a magnetic trap, is the dominant process in this equilibration. We determine the dependence of its time on trap parameters and atom temperature. Furthermore we observe in the simulations a resonant energy exchange between the radial and axial trap dimensions at a ratio of trap frequencies \omega_r / \omega_z = 3/2. This resonance is explained by a simple oscillator model.

Original language	English
Title of host publication	Los Alamos National Laboratory
Place of Publication	Physics
Pages	1-9, arXiv
Publication status	Published - 2005

Cite this

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title = "Anharmonic mixing in a magnetic trap",

abstract = "We have experimentally observed re-equilibration of a magnetically trapped cloud of metastable neon atoms after it was put in a non-equilibrium state. Using numerical simulations we show that anharmonic mixing, equilibration due to the collisionless dynamics of atoms in a magnetic trap, is the dominant process in this equilibration. We determine the dependence of its time on trap parameters and atom temperature. Furthermore we observe in the simulations a resonant energy exchange between the radial and axial trap dimensions at a ratio of trap frequencies \textbackslash{}omega\_r / \textbackslash{}omega\_z = 3/2. This resonance is explained by a simple oscillator model.",

author = "R. Gommers and B.J. Claessens and C.J. Hawthorn and H.C.W. Beijerinck and E.J.D. Vredenbregt",

year = "2005",

language = "English",

pages = "1--9, arXiv",

booktitle = "Los Alamos National Laboratory",

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TY - GEN

T1 - Anharmonic mixing in a magnetic trap

AU - Gommers, R.

AU - Claessens, B.J.

AU - Hawthorn, C.J.

AU - Beijerinck, H.C.W.

AU - Vredenbregt, E.J.D.

PY - 2005

Y1 - 2005

N2 - We have experimentally observed re-equilibration of a magnetically trapped cloud of metastable neon atoms after it was put in a non-equilibrium state. Using numerical simulations we show that anharmonic mixing, equilibration due to the collisionless dynamics of atoms in a magnetic trap, is the dominant process in this equilibration. We determine the dependence of its time on trap parameters and atom temperature. Furthermore we observe in the simulations a resonant energy exchange between the radial and axial trap dimensions at a ratio of trap frequencies \omega_r / \omega_z = 3/2. This resonance is explained by a simple oscillator model.

AB - We have experimentally observed re-equilibration of a magnetically trapped cloud of metastable neon atoms after it was put in a non-equilibrium state. Using numerical simulations we show that anharmonic mixing, equilibration due to the collisionless dynamics of atoms in a magnetic trap, is the dominant process in this equilibration. We determine the dependence of its time on trap parameters and atom temperature. Furthermore we observe in the simulations a resonant energy exchange between the radial and axial trap dimensions at a ratio of trap frequencies \omega_r / \omega_z = 3/2. This resonance is explained by a simple oscillator model.

M3 - Conference contribution

SP - 1-9, arXiv

BT - Los Alamos National Laboratory

CY - Physics

ER -

Anharmonic mixing in a magnetic trap

Abstract

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