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Prospects for fast Rydberg gates on an atom chip
- Atom chips are a promising candidate for a scalable architecture for quantum information processing provided a universal set of gates can be implemented with high fidelity. The difficult part in achieving universality is the entangling two-qubit gate. We consider a Rydberg phase gate for two atoms trapped on a chip and employ optimal control theory to find the shortest gate that still yields a reasonable gate error. Our parameters correspond to a situation where the Rydberg blockade regime is not yet reached. We discuss the role of spontaneous emission and the effect of noise from the chip surface on the atoms in the Rydberg state.
| Author details: | Matthias M. Müller, Harald R. Haakh, Tommaso Calarco, Christiane P. Koch, Carsten HenkelORCiDGND |
|---|---|
| DOI: | https://doi.org/10.1007/s11128-011-0296-0 |
| ISSN: | 1570-0755 |
| Title of parent work (English): | Quantum information processing |
| Publisher: | Springer |
| Place of publishing: | New York |
| Publication type: | Article |
| Language: | English |
| Year of first publication: | 2011 |
| Publication year: | 2011 |
| Release date: | 2017/03/26 |
| Tag: | Cavity quantum electrodynamics; Optimal control; Phase gate; Rydberg atoms |
| Volume: | 10 |
| Issue: | 6 |
| Number of pages: | 22 |
| First page: | 771 |
| Last Page: | 792 |
| Funding institution: | Federal Ministry of Education and Research BMBF; Ministry of Science and Culture MWK of the Federal State of Baden-Wurttemberg); Deutsche Forschungsgemeinschaft [Ko 2301/2]; German-Israeli Foundation for Scientific Cooperation [982-192.14/2007]; European Union |
| Organizational units: | Mathematisch-Naturwissenschaftliche Fakultät / Institut für Physik und Astronomie |
| Peer review: | Referiert |
