dorsal/arxiv
View SchemaEngineering Entanglement: The Fast-Approach Phase Gate
| Authors | Dan Vager, Bilha Segev, Y. B. Band |
|---|---|
| Categories | |
| ArXiv ID | quant-ph/0505199 |
| URL | https://arxiv.org/abs/quant-ph/0505199 |
| DOI | 10.1103/PhysRevA.72.022325 |
| Journal | Phys. Rev. A72, 022325 (2005) |
Abstract
Optimal-control techniques and a fast-approach scheme are used to implement a collisional control phase gate in a model of cold atoms in an optical lattice, significantly reducing the gate time as compared to adiabatic evolution while maintaining high fidelity. New objective functionals are given for which optimal paths are obtained for evolution that yields a control-phase gate up to single-atom Rabi shifts. Furthermore, the fast-approach procedure is used to design a path to significantly increase the fidelity of non-adiabatic transport in a recent experiment. Also, the entanglement power of phase gates is quantified.
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"abstract": "Optimal-control techniques and a fast-approach scheme are used to implement a\ncollisional control phase gate in a model of cold atoms in an optical lattice,\nsignificantly reducing the gate time as compared to adiabatic evolution while\nmaintaining high fidelity. New objective functionals are given for which\noptimal paths are obtained for evolution that yields a control-phase gate up to\nsingle-atom Rabi shifts. Furthermore, the fast-approach procedure is used to\ndesign a path to significantly increase the fidelity of non-adiabatic transport\nin a recent experiment. Also, the entanglement power of phase gates is\nquantified.",
"arxiv_id": "quant-ph/0505199",
"authors": [
"Dan Vager",
"Bilha Segev",
"Y. B. Band"
],
"categories": [
"quant-ph",
"cond-mat.mes-hall",
"physics.atom-ph"
],
"doi": "10.1103/PhysRevA.72.022325",
"journal_ref": "Phys. Rev. A72, 022325 (2005)",
"title": "Engineering Entanglement: The Fast-Approach Phase Gate",
"url": "https://arxiv.org/abs/quant-ph/0505199"
},
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