2023/03/18 by Fei Wang, Wang, Fei, Feng-Dong Jia +25
Physics and Astronomy · Engineering · #Cold Atom Physics and Bose-Einstein Condensates #Laser-induced spectroscopy and plasma #Atomic and Molecular Physics
paper · pdf · doi:10.48550/arxiv.2303.10364
Based on the Rb+-Rb hybrid trap, we investigate the effect of ion-atom elastic collisions on the number and temperature of the remaining atoms. We measured the remaining atomic number and temperature as a function of the wavelength and intensity of the ionization laser, and whether the ion trap was turned on. Fittings with a single exponential decay function plus an offset to the number and radius of the remaining atoms are found to be in good agreement. We found a difference in the exponential factor of different wavelengths of ionization laser with the ion trap on or off. We suppose that the presence of electrons affects ion-atom collisions through disorder-induced heating. Our research contributes to a better understanding of how ultracold neutral plasma evolves, particularly the subsequent kinetics of atomic processes, which also serves as a useful reference for high-energy-density plasma.