caa a22 4500 445886374 CHVBK 20180317145601.0 cr unu---uuuuu 170323e20111201xx s 000 0 eng 10.1007/s11128-011-0296-0 doi (NATIONALLICENCE)springer-10.1007/s11128-011-0296-0 Prospects for fast Rydberg gates on an atom chip [Elektronische Daten] [Matthias Müller, Harald Haakh, Tommaso Calarco, Christiane Koch, Carsten Henkel] 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. Springer Science+Business Media, LLC, 2011 Optimal control nationallicence Phase gate nationallicence Rydberg atoms nationallicence Cavity quantum electrodynamics nationallicence Müller Matthias Institut für Quanteninformationsverarbeitung, Universität Ulm, 89081, Ulm, Germany aut Haakh Harald Institut für Physik und Astronomie, Universität Potsdam, Karl-Liebknecht-Str. 24/25, 14476, Potsdam, Germany aut Calarco Tommaso Institut für Quanteninformationsverarbeitung, Universität Ulm, 89081, Ulm, Germany aut Koch Christiane Institut für Physik, Universität Kassel, Heinrich-Plett-Str. 40, 34132, Kassel, Germany aut Henkel Carsten Institut für Physik und Astronomie, Universität Potsdam, Karl-Liebknecht-Str. 24/25, 14476, Potsdam, Germany aut Quantum Information Processing Springer US; http://www.springer-ny.com 10/6(2011-12-01), 771-792 1570-0755 10:6<771 2011 10 11128 https://doi.org/10.1007/s11128-011-0296-0 text/html Onlinezugriff via DOI 1 research-article jats NATIONALLICENCE 856 40 https://doi.org/10.1007/s11128-011-0296-0 text/html Onlinezugriff via DOI NATIONALLICENCE 700 1- Müller Matthias Institut für Quanteninformationsverarbeitung, Universität Ulm, 89081, Ulm, Germany aut NATIONALLICENCE 700 1- Haakh Harald Institut für Physik und Astronomie, Universität Potsdam, Karl-Liebknecht-Str. 24/25, 14476, Potsdam, Germany aut NATIONALLICENCE 700 1- Calarco Tommaso Institut für Quanteninformationsverarbeitung, Universität Ulm, 89081, Ulm, Germany aut NATIONALLICENCE 700 1- Koch Christiane Institut für Physik, Universität Kassel, Heinrich-Plett-Str. 40, 34132, Kassel, Germany aut NATIONALLICENCE 700 1- Henkel Carsten Institut für Physik und Astronomie, Universität Potsdam, Karl-Liebknecht-Str. 24/25, 14476, Potsdam, Germany aut NATIONALLICENCE 773 0- Quantum Information Processing Springer US; http://www.springer-ny.com 10/6(2011-12-01), 771-792 1570-0755 10:6<771 2011 10 11128 Metadata rights reserved Springer special CC-BY-NC licence nationallicence BK010053 XK010053 XK010000 NATIONALLICENCE NATIONALLICENCE NL-springer