QUANTUM LOGIC ELEMENT USING EXCITOR - National Institute of Advanced Industrial Science and Technology

Title:

QUANTUM LOGIC ELEMENT USING EXCITOR

Document Type and Number:

Japanese Patent JP3837485

Kind Code:

B2

Abstract:

PROBLEM TO BE SOLVED: To solve the problem that a phase relaxation time is very short in conventional proposals by Barenco, etc., because of the use of inter-subband electrons and the problem that technology of a very-short light pulse laser is not available since subband transition wavelength is in the far infrared range and very-fast control is impossible.
SOLUTION: As for a quantum logic element which uses the electron state of a semiconductor quantum structure, inter-polarization interaction between excitons having polarization in a semiconductor quantum well structure is used. Further, spin exchange interaction between spin-deflected excitons in the semiconductor quantum well structure is used.

Inventors:

Kazuhiro Komori

Application Number:

JP2001298076A

Publication Date:

October 25, 2006

Filing Date:

September 27, 2001

Export Citation:

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Assignee:

National Institute of Advanced Industrial Science and Technology

International Classes:

G02F1/017; G02F3/00; H01L29/06; H01L29/66; (IPC1-7): G02F3/00; G02F1/017; H01L29/06; H01L29/66

Domestic Patent References:

JP778961A
JP2001144283A
JP200068495A

Other References:

Matsueda H, Takeno S,Nonlinear coherent excitonic solid gates for quantum computation,IEICE TRANSACTIONS ON FUNDAMENTALS OF ELECTRONICS COMMUNICATIONS AND COMPUTER SCIENCES,1997年 9月,E80A(9),1610-1615
Imamoglu A, Awschalom DD, Burkard G, DiVincenzo DP, Loss D, Sherwin M, Small A,Quantum information processing using quantum dot spins and cavity QED,PHYSICAL REVIEW LETTERS,1999年11月15日,83(20),4204-4207

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