A1 Vertaisarvioitu alkuperäisartikkeli tieteellisessä lehdessä
Atomic collision dynamics in optical lattices
Tekijät: Piilo J, Suominen KA, Berg-Sorensen K
Kustantaja: AMERICAN PHYSICAL SOC
Julkaisuvuosi: 2002
Journal: Physical Review A
Tietokannassa oleva lehden nimi: PHYSICAL REVIEW A
Lehden akronyymi: PHYS REV A
Artikkelin numero: ARTN 033411
Vuosikerta: 65
Numero: 3
Sivujen määrä: 16
ISSN: 1050-2947
DOI: https://doi.org/10.1103/PhysRevA.65.033411
Tiivistelmä
We simulate collisions between two atoms, which move in an optical lattice under the dipole-dipole interaction. The model describes simultaneously the two basic dynamical processes, namely the Sisyphus cooling of single atoms, and the light-induced inelastic collisions between them. We consider the J=1/2-->J=3/2 laser cooling transition for Cs and Na. We find that the hotter atoms in a thermal sample are selectively lost or heated by the collisions, which modifies the steady-state distribution of atomic velocities, reminiscent of the evaporative cooling process.
We simulate collisions between two atoms, which move in an optical lattice under the dipole-dipole interaction. The model describes simultaneously the two basic dynamical processes, namely the Sisyphus cooling of single atoms, and the light-induced inelastic collisions between them. We consider the J=1/2-->J=3/2 laser cooling transition for Cs and Na. We find that the hotter atoms in a thermal sample are selectively lost or heated by the collisions, which modifies the steady-state distribution of atomic velocities, reminiscent of the evaporative cooling process.
Turun yliopiston Tutkimustietojärjestelmän portaali