Quantum logic gate and quantum logic operation method using...

Details Quantum logic gate and quantum logic operation method using... Quantum logic gate and quantum logic operation method using...

2005-12-13

2005-12-13

Wilson, Christian D. (Department: 2891)

Active solid-state devices (e.g., transistors, solid-state diode

Thin active physical layer which is

Heterojunction

C257S012000, C257S015000, C257S017000, C257S021000, C257S025000, C257S031000

Reexamination Certificate

active

06974967

ABSTRACT:
A quantum logic gate utilizes an inter-polarization (dipole—dipole) interaction between excitons having polarization in semiconductor quantum well structures, or a spin exchange interaction between spin polarized excitons in the semiconductor quantum well structures. Problems associated with conventional semiconductor quantum well structures are solved in that a phase relaxation time is very short because of using inter-subband electrons, and that there is no usable ultrashort optical pulse laser technology because a subband transition wavelength is in a far-infrared region and hence ultra fast control is impossible.

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Gang Chen et al., Optically Induced Entanglement of Excitons in a Single Quantum Dot, Science Reprint, vol. 289, pp. 1906-1909, Sep. 15, 2000.
N.H. Bonadeo et al., Coherent Optical Control of the Quantum State of a Single Quantum Dot, Science, vol. 282, pp. 1473-1476, Nov. 20, 1998.

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