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Driven geometric phase gates with trapped ions

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njp13_8_083001.pdf (1.290Mb)

peer-reviewed

Erstveröffentlichung
2013-08-01
Authors
Lemmer, A.
Bermudez, A.
Plenio, Martin B.
Wissenschaftlicher Artikel


Published in
New Journal of Physics ; 15 (2013), 8. - Art.-Nr. 083001. - eISSN 1367-2630
Link to original publication
https://dx.doi.org/10.1088/1367-2630/15/8/083001
Faculties
Fakultät für Naturwissenschaften
Institutions
Institut für Theoretische Physik
Document version
published version (publisher's PDF)
Abstract
Abstract We describe a hybrid laser–microwave scheme to implement two-qubit geometric phase gates in crystals of trapped ions. The proposed gates can attain errors below the fault-tolerance threshold in the presence of thermal, dephasing, laser-phase and microwave-intensity noise. Moreover, our proposal is technically less demanding than previous schemes, since it does not require a laser arrangement with interferometric stability. The laser beams are tuned close to a single vibrational sideband to entangle the qubits, while strong microwave drivings provide the geometric character to the gate, and thus protect the qubits from these different sources of noise. A thorough analytic and numerical study of the performance of these gates in realistic noisy regimes is presented.
Subject headings
[GND]: Bewegung
[LCSH]: Quantum computing | Dynamics | Motion | Memory
[Free subject headings]: quantum computation
[DDC subject group]: DDC 530 / Physics
License
CC BY 3.0
https://creativecommons.org/licenses/by/3.0/

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DOI & citation

Please use this identifier to cite or link to this item: http://dx.doi.org/10.18725/OPARU-43649

Lemmer, A.; Bermudez, A.; Plenio, Martin B. (2022): Driven geometric phase gates with trapped ions. Open Access Repositorium der Universität Ulm und Technischen Hochschule Ulm. http://dx.doi.org/10.18725/OPARU-43649
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