| Zugriffsnummer | 45172 |
| Dokumenttyp | Zeitschriftenartikel |
| Peer Review | mit Peer Review |
| Sprache | Englisch |
| Titel | Robust and resource-efficient microwave near-field entangling 9Be+ gate |
| Autor(in); Institution |
Zarantonello, Giorgio; Leibniz Universität, Institut für Quantenoptik, Hannover, GERMANY; QUEST Institute for Experimental Quantum Metrology, PTB-Braunschweig
Hahn, Henning; Leibniz Universität, Institut für Quantenoptik, Hannover, GERMANY; QUEST Institute for Experimental Quantum Metrology, PTB-Braunschweig
Morgner, Jonathan; Leibniz Universität, Institut für Quantenoptik, Hannover, GERMANY; QUEST Institute for Experimental Quantum Metrology, PTB-Braunschweig
Schulte, Marius; Institut für Theoretische Physik und Institut für Gravitationsphysik (Albert-Einstein-Institut), Leibniz Universität Hannover, Hannover, GERMANY
Bautista-Salvador, Amado; QUEST Institute for Experimental Quantum Metrology, PTB-Braunschweig
Werner, R. F.; Leibniz Universität Hannover, Institut für Theoretische Physik, Hannover, GERMANY
Hammerer, Klemens; Leibniz Universität Hannover, Institut für Theoretische Physik und Institut für Gravitationsphysik (Albert-Einstein-Institut), Hannover, GERMANY
Ospelkaus, Christian; QUEST Institute for Experimental Quantum Metrology, PTB-Braunschweig; Leibniz Universität, Institut für Quantenoptik, Hannover, GERMANY
|
| Quelle/Jahr | Physical Review Letters: 123 (2019), 26, 1 - 6 |
| Artikelnummer | 260503 |
| ISSN | 0031-9007 (PRINT) ; 1079-7114 (ONLINE) |
| DOI | |
| URL | |
| Verlag | College Park, Md.: American Physical Society (APS) |
| Freie Schlagworte | Atom an ion trapping and guiding ; Coherent control ; Entanglement detection ; Quantum control ; Quantum gates |
| Zusammenfassung | Microwave trapped-ion quantum logic gates avoid spontaneous emission as a fundamental source of decoherence. However, microwave two-qubit gates are still slower than laser-induced gates and hence more sensitive to fluctuations and noise of the motional mode frequency. We propose and implement amplitude-shaped gate drives to obtain resilience to such frequency changes without increasing the pulse energy per gate operation. We demonstrate the resilience by noise injection during a two-qubit entangling gate with 9Be+ ion qubits. In the absence of injected noise, amplitude modulation gives an operation infidelity in the 10-3 range. |
| Themenbereich der Metrologie | Zeit und Frequenz |
Zitierung
Zarantonello, G., Hahn, H., Morgner, J., Schulte, M., Bautista-Salvador, A., Werner, R. F., Hammerer, K., & Ospelkaus, C. (2019). Robust and resource-efficient microwave near-field entangling ⁹Be⁺ gate. Physical Review Letters, 123(26), 1–6. https://doi.org/10.1103/physrevlett.123.260503