Dynamics of atoms in a time-orbiting-potential trap: consequences of the classical description
Year: 2010
Authors: Zambon B., Franzosi R.
Autors Affiliation: INFM UdR di Pisa, Dipartimento di Fisica E. Fermi Universitą di Pisa, Largo B. Pontecorvo 3, I-56127 Pisa, Italy; C.N.I.S.M. UdR di Firenze and Dipartimento di Fisica, Universitą degli Studi di Firenze, Via Sansone 1, I-50019 Sesto Fiorentino, Italy
Abstract: The classical model that describes the motion of an atom in a magnetic trap is solved in order to investigate the relationship between the failure of the usual adiabatic approximation assumption and the physical parameters of the trap. This allows us to evaluate the effect that reversing of the bias field rotation produces on the vertical position of the atomic orbit, a displacement that is closely related to the adiabatic character of the trap motion. The present investigation has been motivated by a similar experimental test previously carried out in the actual magnetic time-orbiting-potential trap. We find that the non-adiabatic effects provided by the classical model are extremely small. Thus, we conclude that the theoretical explanation of the experimental measures requires a quantum description of the dynamics in magnetic traps.
Journal/Review: JOURNAL OF PHYSICS B-ATOMIC MOLECULAR AND OPTICAL PHYSICS
Volume: 43 (8) Pages from: 085302 to: 085302
KeyWords: Adiabatic approximations; Bias field; Classical model; Experimental test; Magnetic trap; Non-adiabatic effect; Physical parameters; Potential trap; Quantum description; Theoretical explanation; Vertical positions, Plasma confinement, AtomsDOI: 10.1088/0953-4075/43/8/085302ImpactFactor: 1.902Connecting to view paper tab on IsiWeb: Click here
