Patent attributes
Values of quantum bits used for a quantum computer is stabilized and the number of quantum bits per element is set to be 100 or more while ensuring quantum state stability during calculation of the quantum bits, quantum state controllability, and capability of achieving large-scale integration of quantum bits. Quantum calculation is performed as generating a spin vortex 6 centered on each hole 4 formed at a copper oxide superconductor thin film 3 by applying a magnetic field to a quantum bit substrate 1 having the copper oxide superconductor thin film 3 at which a plurality of the holes 4 are doped and irradiating an electromagnetic wave 19 containing quantum calculation data to the quantum bit substrate 1 in a state that a clockwise loop current 5 or a counterclockwise loop current 5 is generated in accordance with a position of each hole 4 and each spin vortex 6.
