dorsal/arxiv
View SchemaTargeting qubit states using open-loop control
| Authors | C. D'Helon, V. Protopopescu, R. Perez |
|---|---|
| Categories | |
| ArXiv ID | quant-ph/0301006 |
| URL | https://arxiv.org/abs/quant-ph/0301006 |
| DOI | 10.1088/0305-4470/36/25/315 |
| Journal | J. Phys. A 36(25) 7129, 2003 |
Abstract
We present an open-loop (bang-bang) scheme which drives an open two-level quantum system to any target state, while maintaining quantum coherence throughout the process. The control is illustrated by a realistic simulation for both adiabatic and thermal decoherence. In the thermal decoherence regime, the control achieved by the proposed scheme is qualitatively similar, at the ensemble level, to the control realized by the quantum feedback scheme of Wang, Wiseman, and Milburn [Phys. Rev. A 64, #063810 (2001)] for the spontaneous emission of a two-level atom. The performance of the open-loop scheme compares favorably against the quantum feedback scheme with respect to robustness, target fidelity and transition times.
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"abstract": "We present an open-loop (bang-bang) scheme which drives an open two-level\nquantum system to any target state, while maintaining quantum coherence\nthroughout the process. The control is illustrated by a realistic simulation\nfor both adiabatic and thermal decoherence. In the thermal decoherence regime,\nthe control achieved by the proposed scheme is qualitatively similar, at the\nensemble level, to the control realized by the quantum feedback scheme of Wang,\nWiseman, and Milburn [Phys. Rev. A 64, #063810 (2001)] for the spontaneous\nemission of a two-level atom. The performance of the open-loop scheme compares\nfavorably against the quantum feedback scheme with respect to robustness,\ntarget fidelity and transition times.",
"arxiv_id": "quant-ph/0301006",
"authors": [
"C. D\u0027Helon",
"V. Protopopescu",
"R. Perez"
],
"categories": [
"quant-ph"
],
"doi": "10.1088/0305-4470/36/25/315",
"journal_ref": "J. Phys. A 36(25) 7129, 2003",
"title": "Targeting qubit states using open-loop control",
"url": "https://arxiv.org/abs/quant-ph/0301006"
},
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