One-dimensional atom laser in microgravity*

Abstract

Using coupled Gross–Pitaevksii (GP) equations, we simulate the output of one-dimensional pulsed atom laser in space station. We get two atom laser pulses propagating in opposite directions with one pulsed RF coupling. Compared with atom laser under gravity, the laser pulse in microgravity shows much slower moving speed, which is suitable to be used for long-term investigations. We also simulate the output flux at different coupling strengths.

Space continuous atom laser in one dimension

“…[39] The details can be found in our previous work. [57] G = (Mg/hω 1y )(h/Mω 1y ) 1/2 is the gravitational potential of atom on the earth with acceleration g. The component (F = 2, m F = 1) of 87 Rb with mass M is trapped with frequency ω 1y . The harmonic oscillator unit is used, namely, the unit of time is 1/ω 1y and the unit of length is (h/Mω 1y ) 1/2 .…”