| Autor: |
Minogin, V. G., Subbotin, M. V., Melent’ev, P. N. |
| Předmět: |
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| Zdroj: |
Journal of Experimental & Theoretical Physics; Jul98, Vol. 87 Issue 1, p12, 8p |
| Abstrakt: |
We study the dynamics of atoms confined to a quadrupole magnetic trap with an orbiting potential. For typical values of the experimental parameters of the trap, the rotating magnetic field is shown to produce high-frequency modulation of atomic momenta with an amplitude comparable to the widths of the momentum distributions for the lowest oscillation states of atoms in the time-averaged potential. We find the quantum-statistical momentum and position distributions of atoms and show that at temperatures much higher than the effective vibrational temperature of the atoms in the trap the quantum-statistical momentum and position distributions are Gaussian. We also establish that at temperatures comparable to the effective vibrational temperature of the atoms the quantum-statistical momentum distribution has an annular structure in the trap's symmetry plane, which is due to the deep modulation of the atomic momenta caused by the rotating magnetic field. [ABSTRACT FROM AUTHOR] |
| Databáze: |
Complementary Index |
| Externí odkaz: |
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