Universal quantum computing with correlated spin-charge states
Universal quantum computing with correlated spin-charge states
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2007
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Kyriakidis, Jordan
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Physical Review ; 2007, B75. - 115324
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We propose a universal quantum computing scheme in which the orthogonal qubit states |0i and |1> are identical in their single-particle spin and charge properties. Each qubit is contained in a single quantum dot and gate operations are induced all-electrically by changes in the confinement potential. Within the computational space, these qubits are robust against environmental influences that couple to the system through single-particle channels. Due to the identical spin and charge properties of the |0>, |1> states, the lowest-order relaxation and decoherence rates 1/T1 and 1/T2, within the Born-Markov approximation, both vanish for a large class of environmental couplings. We give explicit pulse sequences for a universal set of gates (phase, phi/8, Hadamard, cnot) and discuss state preparation, manipulation, and detection.
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KYRIAKIDIS, Jordan, Guido BURKARD, 2007. Universal quantum computing with correlated spin-charge states. In: Physical Review(B75), 115324. Available under: doi: 10.1103/PhysRevB.75.115324BibTex
@article{Kyriakidis2007Unive-4802, year={2007}, doi={10.1103/PhysRevB.75.115324}, title={Universal quantum computing with correlated spin-charge states}, number={B75}, journal={Physical Review}, author={Kyriakidis, Jordan and Burkard, Guido}, note={Article Number: 115324} }
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