Universal quantum computing with correlated spin-charge states

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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.75.115324

@article{Kyriakidis2007Unive-4802, title={Universal quantum computing with correlated spin-charge states}, year={2007}, doi={10.1103/PhysRevB.75.115324}, number={B75}, journal={Physical Review}, author={Kyriakidis, Jordan and Burkard, Guido}, note={Article Number: 115324} }

Burkard, Guido 2011-03-24T14:50:26Z Universal quantum computing with correlated spin-charge states Kyriakidis, Jordan application/pdf 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. 2007 Burkard, Guido terms-of-use 2011-03-24T14:50:26Z First publ. in: arXiv:cond-mat/0606627 [cond-mat.mess-hall], also publ. in Physical Review (2007), B75, 115324 Kyriakidis, Jordan eng

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