  Braiding operations are challenging to create topological quantum computers.
It is unclear whether braiding operations can be executed with any materials.
Although various calculations based on Majorana fermions show braiding
possibilities, a braiding operation with a Majorana fermion has not yet been
experimentally proven. Herein, braiding operations are demonstrated using a
molecular topological superconductor (MTSC) that utilizes the topological
properties intrinsic in molecules. The braiding operations were implemented by
controlling two MTSC modules made by pelletizing crystals of
4,5,9,10-tetrakis(dodecyloxy)pyrene, which is proposed as the first MTSC
material through n-MOSFETs. It shows the elements of topological quantum
computers that can be demonstrated without an external magnetic field at room
temperature.
