Universal quantum computing with correlated spin-charge states
| dc.creator | Kyriakidis, Jordan | |
| dc.creator | Burkard, Guido | |
| dc.date | 2006-06-24 | |
| dc.date | 2007-03-21 | |
| dc.date.accessioned | 2026-07-07T07:54:00Z | |
| dc.date.available | 2026-07-07T07:54:00Z | |
| dc.description | We propose a universal quantum computing scheme in which the orthogonal qubit states $|0>$ 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 $1/T_1$ and $1/T_2$, 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, $π/8$, Hadamard, \textsc{cnot}) and discuss state preparation, manipulation, and detection. | |
| dc.description | 6 pages, 3 eps figures, revtex4 | |
| dc.identifier | https://arxiv.org/abs/cond-mat/0606627 | |
| dc.identifier | http://arxiv.org/abs/cond-mat/0606627 | |
| dc.identifier | Phys. Rev. B v75, 115324 (2007) | |
| dc.identifier | doi:10.1103/PhysRevB.75.115324 | |
| dc.identifier.uri | http://salesiana.dossiersoluciones.com/handle/123456789/126439 | |
| dc.subject | Mesoscale and Nanoscale Physics | |
| dc.subject | Strongly Correlated Electrons | |
| dc.subject | Quantum Physics | |
| dc.title | Universal quantum computing with correlated spin-charge states | |
| dc.type | text |