  Solitons have garnered significant attention across various fields, yet a
contentious debate persists regarding the precise structure of solitons on
indium chains. Currently, multiple forms of solitons in one-dimensional atomic
chains have been reported. STM provides an effective means to study the precise
atomic structure of solitons, particularly their dynamics and interactions.
However, limited research has been conducted on soliton interactions and
soliton-chain interactions, despite their profound impact on relative soliton
motions and the overall physical properties of the system. In this work, we
characterized the structures of the soliton dimer and trimer, observed the
displacements induced by the soliton entity and statisticized the dynamic
behaviors of soliton dimers over time evolution or temperature. To reveal the
soliton mechanism, we further utilized STM to investigate the CDWs between two
solitons when two monomers were encountered. Additionally, we achieved the
manipulation of the monomer on the indium chain by the STM tip. Our work serves
as an important approach to elucidate interactions in correlated electronic
systems and advance the development of potential topological soliton computers.
