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New scheme of spin qubits driven by ac electric field
A new scheme of spin qubit with a quantum dot under a slanting Zeeman field is proposed. The qubit is defined as a hybrid orbital and spin state, and referred as quasi-spin qubit. The quasi-spin rotation is performed by letting an electron in a quantum dot to oscillate in a stray field generated by micromagnets. Numerical calculation of the stray field shows that the resultant slanting Zeeman field can be large enough for realizing a sub 100 ns π-rotation for a realistic design of a lateral quantum dot.
New scheme of spin qubits driven by ac electric field
A new scheme of spin qubit with a quantum dot under a slanting Zeeman field is proposed. The qubit is defined as a hybrid orbital and spin state, and referred as quasi-spin qubit. The quasi-spin rotation is performed by letting an electron in a quantum dot to oscillate in a stray field generated by micromagnets. Numerical calculation of the stray field shows that the resultant slanting Zeeman field can be large enough for realizing a sub 100 ns π-rotation for a realistic design of a lateral quantum dot.
New scheme of spin qubits driven by ac electric field
Tarucha, Seigo (author) / Tokura, Yasuhiro (author) / Pioro-Ladriere, Michel (author) / Obata, Toshiaki (author) / Kubo, Toshihiro (author) / van der Wiel, Wilfred (author)
2006-10-01
382207 byte
Conference paper
Electronic Resource
English
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