SILVA, E. F.; http://lattes.cnpq.br/8370956332115252; SILVA, Everaldo Ferreira da
Resumo:
In this paper we theoretically approach the Optical Molasses, and using atoms of
Cesium, we demonstrate that it is possible to cool them. Atomic cooling is a content of
extremely important in physics because it encompasses the fundamentals that precede the techniques
trapping atoms, where it has important physical applications. We use
as a basis, the idea that the interaction of the atom with a beam of electromagnetic radiation
change the moment. This effect is given by an average force that alters the velocity
of the atom. The force is contrary to the direction of the beam. We use the beam configuration
counter-propagants to reduce the speed of atoms. The study of the dynamics we made
is about the velocity of atoms in the interaction of these beams via numerical calculation to solve
EDO of the relation F = md x. We made use of the C ++ programming language allied to
powerful GSL libraries to do a computer simulation. The understanding of
Numerical methods were implemented along with applications in the harmonic oscillators.
We use the expression of the force of the radiation pressure in the optical molasses, we calculate
speed and acceleration as a function of time. We study numerical programming
for ODE resolution using GSL and we check its operation for the case
harmonic oscillator where we can compare with the analytical results. We did
comparisons for various conditions and always observing in the dynamics the reduction of
velocity.
