Patent ID: 6770916
Filing Date: 2004-08-03
Classification: B82Y,H01L,H01S

Abstract:
A quantum circuit device comprising:a first asymmetrical coupled quantum dot including: a first main quantum dot; and a first operational quantum dot of a smaller size than that of the first main quantum dot, which are coupled to each other; a second asymmetrical coupled quantum dot including: a second main quantum dot arranged at a distance which does not substantially permit tunneling from the first main quantum dot; and a second operational quantum dot having a smaller size than that of the second main quantum dot and arranged at a distance which permits tunneling from the first operational quantum dot, which are coupled to each other; and a laser device for applying to the first and the second asymmetrical coupled quantum dots a laser beam of a wavelength which resonates an inter-level energy with respect to the first and the second asymmetrical coupled quantum dots.