dorsal/arxiv
View SchemaScheme for direct measurement of a general two-qubit Hamiltonian
| Authors | Simon J. Devitt, Jared H. Cole, Lloyd C. L. Hollenberg |
|---|---|
| Categories | |
| ArXiv ID | quant-ph/0511168 |
| URL | https://arxiv.org/abs/quant-ph/0511168 |
| DOI | 10.1103/PhysRevA.73.052317 |
| Journal | Phys. Rev. A. 73, 052317 (2006) |
Abstract
The construction of two-qubit gates appropriate for universal quantum computation is of enormous importance to quantum information processing. Building such gates is dependent on accurate knowledge of the interaction dynamics between two qubit systems. This letter will present a systematic method for reconstructing the full two-qubit interaction Hamiltonian through experimental measures of concurrence. This not only gives a convenient method for constructing two qubit quantum gates, but can also be used to experimentally determine various Hamiltonian parameters in physical systems. We show explicitly how this method can be employed to determine the first and second order spin-orbit corrections to the exchange coupling in quantum dots.
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"abstract": "The construction of two-qubit gates appropriate for universal quantum\ncomputation is of enormous importance to quantum information processing.\nBuilding such gates is dependent on accurate knowledge of the interaction\ndynamics between two qubit systems. This letter will present a systematic\nmethod for reconstructing the full two-qubit interaction Hamiltonian through\nexperimental measures of concurrence. This not only gives a convenient method\nfor constructing two qubit quantum gates, but can also be used to\nexperimentally determine various Hamiltonian parameters in physical systems. We\nshow explicitly how this method can be employed to determine the first and\nsecond order spin-orbit corrections to the exchange coupling in quantum dots.",
"arxiv_id": "quant-ph/0511168",
"authors": [
"Simon J. Devitt",
"Jared H. Cole",
"Lloyd C. L. Hollenberg"
],
"categories": [
"quant-ph"
],
"doi": "10.1103/PhysRevA.73.052317",
"journal_ref": "Phys. Rev. A. 73, 052317 (2006)",
"title": "Scheme for direct measurement of a general two-qubit Hamiltonian",
"url": "https://arxiv.org/abs/quant-ph/0511168"
},
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