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arXiv · 0710.3996

Universal quantum computation with electronic qubits in decoherence-free subspace

X. L. Zhang·M. Feng·K. L. Gao
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Abstract

We investigate how to carry out universal quantum computation deterministically with free electrons in decoherence-free subspace by using polarizing beam splitters, charge detectors, and single-spin rotations. Quantum information in our case is encoded in spin degrees of freedom of the electron-pairs which construct a decoherence-free subspace. We design building blocks for two noncommutable single-logic-qubit gates and a logic controlled phase gate, based on which a universal and scalable quantum information processing robust to dephasing is available in a deterministic way.

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X. L. Zhang, M. Feng, K. L. Gao. 2007-10-22. Universal quantum computation with electronic qubits in decoherence-free subspace. https://arxiv.org/abs/0710.3996

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