Quantum memory

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United States of America Patent

PATENT NO 8897057
SERIAL NO

13561843

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Abstract

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A quantum memory component including a quantum dot molecule having first and second quantum dots provided in respective first and second layers separated by a barrier layer; an exciton comprising an electron and hole bound state in said quantum dot molecule, the spin state of said exciton forming a qubit; first and second electrical contacts respectively provided below the first quantum dot and above the second quantum dot; a voltage source to apply an electric field across said quantum dot molecule; a controller to modulate the electric field across the quantum dot molecule, including an information acquiring circuit to acquire information concerning the relationship between fine structure splitting of the exciton and the applied electric field and a timing circuit to allow switching of the exciton from an indirect configuration to a direct configuration at predetermined times derived from the fine structure splitting.

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Patent Owner(s)

Patent OwnerAddress
KABUSHIKI KAISHA TOSHIBA72-34 HORIKAWA-CHO SAIWAI-KU KAWASAKI-SHI KANAGAWA 2120013 ?2120013

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Inventor(s)

Inventor Name Address # of filed Patents Total Citations
Bennett, Anthony John Cambridge, GB 17 137
Shields, Andrew James Cambridge, GB 100 1230
Skold, Niklas Adam Bilbo Cambridge, GB 1 13

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