dorsal/arxiv
View SchemaFast Rydberg gates without dipole blockade via quantum control
| Authors | M. Cozzini, T. Calarco, A. Recati, P. Zoller |
|---|---|
| Categories | |
| ArXiv ID | quant-ph/0511118 |
| URL | https://arxiv.org/abs/quant-ph/0511118 |
| DOI | 10.1016/j.optcom.2006.01.060 |
Abstract
We propose a scheme for controlling interactions between Rydberg-excited neutral atoms in order to perform a fast high-fidelity quantum gate. Unlike dipole-blockade mechanisms already found in the literature, we drive resonantly the atoms with a state-dependent excitation to Rydberg levels, and we exploit the resulting dipole-dipole interaction to induce a controlled atomic motion in the trap, in a similar way as discussed in recent ion-trap quantum computing proposals. This leads atoms to gain the required gate phase, which turns out to be a combination of a dynamic and a geometrical contribution. The fidelity of this scheme is studied including small anharmonicity and temperature effects, with promising results for reasonably achievable experimental parameters.
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"abstract": "We propose a scheme for controlling interactions between Rydberg-excited\nneutral atoms in order to perform a fast high-fidelity quantum gate. Unlike\ndipole-blockade mechanisms already found in the literature, we drive resonantly\nthe atoms with a state-dependent excitation to Rydberg levels, and we exploit\nthe resulting dipole-dipole interaction to induce a controlled atomic motion in\nthe trap, in a similar way as discussed in recent ion-trap quantum computing\nproposals. This leads atoms to gain the required gate phase, which turns out to\nbe a combination of a dynamic and a geometrical contribution. The fidelity of\nthis scheme is studied including small anharmonicity and temperature effects,\nwith promising results for reasonably achievable experimental parameters.",
"arxiv_id": "quant-ph/0511118",
"authors": [
"M. Cozzini",
"T. Calarco",
"A. Recati",
"P. Zoller"
],
"categories": [
"quant-ph"
],
"doi": "10.1016/j.optcom.2006.01.060",
"title": "Fast Rydberg gates without dipole blockade via quantum control",
"url": "https://arxiv.org/abs/quant-ph/0511118"
},
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