▎ 摘　　要

NOVELTY - The majorana quantum bit (1) has a first topological insulator layer having a first edge. A first layer is provided between the first edge and a first s-wave superconductor layer and capable of penetration of Cooper pairs from the first s-wave superconductor layer to the first edge by proximity effect. The first layer is physically adsorbed to the first topological insulator layer. A second layer is physically attracted to a second topological insulator layer. The first and second layers include a niobium pentoxide layer, a niobium(III) oxide layer, a niobium dioxide layer, a niobium nitride layer, a titanium nitride layer, a hexagonal boron nitride layer, a graphene layer, graphite, a gold layer, a platinum layer, or any combination. USE - Majorana quantum bit for use in quantum computer (claimed). ADVANTAGE - Majorana particles are stably generated. The disturbance of the respective electronic states of the lower topological insulator layer and the upper topological insulator layer is suppressed. DESCRIPTION OF DRAWING(S) - The drawing shows a cross-sectional view of the quantum bit. 1Majorana quantum bit 10Topological insulator layer 20S-wave superconductor layer 30Cap layer