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arXiv · 0708.2517

Implementing controlled-NOT gate based on free spin qubits with semiconductor quantum-dot array

Yin-Zhong Wu·Wei-Min Zhang
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Abstract

Based on electron spins in semiconductor quantum dots as qubits, a new quantum controlled-NOT(CNOT) gate is constructed in solid nanostructure without resorting to spin-spin interactions. Single electron tunneling technology and coherent quantum-dot cellular automata architecture are used to generate an ancillary charge entangled state. Using the ancillary charge entangled state as an intermediate state, we obtain a spin entangled state and design a CNOT gate by using only single spin rotations.

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Yin-Zhong Wu, Wei-Min Zhang. 2007-08-19. Implementing controlled-NOT gate based on free spin qubits with semiconductor quantum-dot array. https://doi.org/10.1209/epl%2Fi2005-10117-0

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