Quantum Gates Based on Electron Spins of Triple Quantum Dot
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概要
- 論文の詳細を見る
Quantum computation using electron spins in three-coupled dots of different sizes is proposed. By using photon-assisted tunnelling, Coulomb blockade and spin rotation of electrons, logic gates are realized by static and rotational magnetic fields and resonant optical pulses. The two-bit CNOT is numerically demonstrated by the time evolution of the density matrix. In addition, the Hamiltonian is described using pseudo-spin representation and the phase change during the gate operation is discussed.
- Published by the Japan Society of Applied Physics through the Institute of Pure and Applied Physicsの論文
- 2003-10-15
著者
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MUTO Shunichi
Department of Applied Physics, Hokkaido University
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Sasakura Hirotaka
Department Of Applied Physics Faculty Of Engineering Hokkaido University
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ADACHI Satoru
Department of Applied Physics, Hokkaido University
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Adachi Satoru
Department of Applied Physics, Hokkaido University, N13 W8 Kitaku, Sapporo 060-8628, Japan
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Muto Shunichi
Department of Applied Physics, Hokkaido University, N13 W8 Kitaku, Sapporo 060-8628, Japan
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Sasakura Hirotaka
Department of Applied Physics, Hokkaido University, N13 W8 Kitaku, Sapporo 060-8628, Japan
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Muto Shunichi
Department of Applied Physics, Hokkaido Univercity, Sapporo 060-8628, Japan
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Adachi Satoru
Department of Applied Physics, Hokkaido Univercity, Sapporo 060-8628, Japan
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