  We show that the stray field generated by isolated magnetic skyrmions can be
used to trap ultracold atoms. Specially, ring-shaped and double-well trapping
potentials for ultracold atoms can be created by combining the field from two
isolated skyrmions. The geometry size, potential barrier, trapping frequency
and Majorana loss rate of these magnetic traps can be tuned by the external
magnetic field or device configuration. The results here could be useful to
develop atomtronics devices by manipulating the magnetic skyrmions with modern
spintronics techniques.
