  Majorana bound states (MBSs) are building blocks for topological quantum
computing. They can be generated via the combination of electronic topology and
superconductivity. To achieve logic operations via Majorana braiding,
positional control of the MBS must be established. To this end, exotic
co-existing phases or collective modes in an intrinsic topological
superconductor can provide a tuning knob to manipulate the MBS. Here we report
the observation of a striped surface charge order coexisting with
superconductivity and its controllable tuning of the MBS in the topological
superconductor 2M-WS2 using low-temperature scanning tunneling microscopy. By
applying an out-of-plane magnetic field, we observe that MBS is absent in
vortices in the region with strong stripe order. This is in contrast to
adjacent underlaying layers without charge order where vortex-bound MBSs are
observed. Via theoretical simulations, we show that the surface stripe order
does not destroy the bulk topology, but it can effectively modify the spatial
distribution of MBS, i.e., it pushes them downward away from the 2M-WS2
surface. Our findings demonstrate that the interplay of charge order and
topological superconductivity can be used to manipulate the positions of the
MBS, and to explore of new states of matter.
