Direct loading of atoms from a macroscopic quadrupole magnetic trap into a microchip trap |
(color online) Experimental setup. (a) The atoms are captured in a standard six-beam MOT which is 28 mm below the atom chip surface, and then magnetically transported close to the atom chip by the MOT and transfer coils. (b) The main part of wire pattern on the atom chip concludes a Z-shaped wire (black line) and a concentric isometric three-ring wire (grey line). Only the Z-shaped wire is used in the present experiment. |