We have studied the quantum dynamic behavior of system of two-mode squeezed field interacting with Bose-Einstein condensate of V-type three-level atoms, and analyzed the possibility of preparation of two-mode atomic laser via interaction of two-mode field and Bose-Einstein condensate of V-type three-level atoms.
The propagation of the atom laser beam is discussed during the interacting with Bose-Einstein condensation (BEC), the propagation with the trap on and the free propagation with the trap off whose potential can be separated by x and y.
The resonance radiation trapping in alkaline-earth metal atomic lasers were investigated according to Holstein's theory. The threshold temperature, ground-state density and resonant level effective lifetime of the resonance radiation trapping were calculated for Ca, Sr, and Ba atomic vapor lasers with different tube radii.
Unlike the case of rotating wave approximation(RWA), we show that the non-classical properties, such as sub-Poisson distribution and quadrature squeezed effect, can appear in the output atom laser beam with time.
We describe the measurement of the line width of an atom laser beam extracted from a Bose-Einstein condensate.
Using a novel magnetic resonance imaging technique, we find that the energy width of the atom laser beam is Fourier-limited by the duration of the output-coupling process.
Both an atom laser beam and a pseudo-thermal atomic beam are extracted from a Bose-Einstein condensate and the atom flux is measured with a single atom counter.
It is these departing atoms, still enjoying the coherent properties of the BEC state, that constitute an atom laser beam.
In this paper we present a method to judge the stability of laser traps for trapping neutral atoms of gas. Using the method we prove theoretically that the bi-Gaussian light beam trap can be stable in trapping neutral (two-level) atoms of gas along the beam axis. We also discuss the stability of a throe-dimensional spatial trap which is formed by three bi-Gaussian light beam traps with the same structure but perpendicular cross.
The laser-enhanced ionization spectroscopy(LEIS) behavior of lithiumin flame was studied. By making use of the transition 22P1/2,3/2→32D3/2;5/2 of lithium atoms, the effect of laser position, flowrate of acethylene, voltage of cathode, acidity of sample solution and existence of sodium and potassium on the LEIS signal of lithium was examined.