Los puntos clave no están disponibles para este artículo en este momento.
Atomic-beam sodium atoms were slowed to zero or negative velocities by counterpropagating laser radiation which was frequency chirped with precise electro-optic modulation techniques. The resulting "gas cloud" had a temperature below 50 mK and a density above 10^6 atoms/cm^3. We mention future possibilities in atom slowing, deflection, and storage.
Ertmer et al. (Mon,) studied this question.
Synapse has enriched 5 closely related papers on similar clinical questions. Consider them for comparative context: