dorsal/arxiv
View SchemaInter-valley interactions in Si quantum dots
| Authors | Doyeol Ahn |
|---|---|
| Categories | |
| ArXiv ID | quant-ph/0405037 |
| URL | https://arxiv.org/abs/quant-ph/0405037 |
| DOI | 10.1063/1.1994946 |
| Journal | J. Appl. Phys. 98, 033709 (2005) |
Abstract
In this paper, we studied the inter-valley interactions between the orbital functions associated with multi-valley of silicon (Si) quantum dots. Numerical calculations show that the inter-valley coupling between orbital functions increases rapidly with an applied electric field. We also considered the potential applications to the quantum bit operation utilizing controlled inter-valley interactions. Quantum bits are the multi-valley symmetric and anti-symmetric orbitals. Evolution of these orbitals would be controlled by an external electric field which turns on and off the inter-valley interactions. Estimates of the decoherence time are made for the longitudinal acoustic phonon process. Elementary single and two qubit gates are also proposed.
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"abstract": "In this paper, we studied the inter-valley interactions between the orbital\nfunctions associated with multi-valley of silicon (Si) quantum dots. Numerical\ncalculations show that the inter-valley coupling between orbital functions\nincreases rapidly with an applied electric field. We also considered the\npotential applications to the quantum bit operation utilizing controlled\ninter-valley interactions. Quantum bits are the multi-valley symmetric and\nanti-symmetric orbitals. Evolution of these orbitals would be controlled by an\nexternal electric field which turns on and off the inter-valley interactions.\nEstimates of the decoherence time are made for the longitudinal acoustic phonon\nprocess. Elementary single and two qubit gates are also proposed.",
"arxiv_id": "quant-ph/0405037",
"authors": [
"Doyeol Ahn"
],
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"quant-ph"
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"doi": "10.1063/1.1994946",
"journal_ref": "J. Appl. Phys. 98, 033709 (2005)",
"title": "Inter-valley interactions in Si quantum dots",
"url": "https://arxiv.org/abs/quant-ph/0405037"
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