Superconducting chip micro magnetic trap loading method

The invention provides a loading method of a superconducting chip micro magnetic trap. The loading method comprises the following steps: loading atomic groups from rubidium steam by using a magneto-optical trap MOT; compressing the atomic cloud by using a compression magneto-optical trap (CMOT); the temperature of the atomic cloud is reduced through the polarization gradient cooling PGC; pumping the atomic cloud to a magnetic trap trapping state; immediately opening the quadrupole magnetic trap MT to load atomic groups; adiabatically compressing the quadrupole magnetic trap MT, and adiabatically transiting the atomic group from the quadrupole magnetic trap MT to the QUIC trap; after the atomic group enters the QUIC well, radio frequency evaporation cooling is carried out to obtain an atomic group of BEC; an atomic group of BEC is transferred from the QUIC well to the superconducting chip micro magnetic well for loading; by changing the direction of the chip bias field, the influence of the chip bias field on