caa a22 4500 445886323 CHVBK 20180317145601.0 cr unu---uuuuu 170323e20111201xx s 000 0 eng 10.1007/s11128-011-0308-0 doi (NATIONALLICENCE)springer-10.1007/s11128-011-0308-0 An atom-molecule platform for quantum computing [Elektronische Daten] [Elena Kuznetsova, S. Yelin, Robin Côté] We propose a combined atom-molecule system for quantum information processing in individual traps, such as provided by optical lattices. In this platform, different species of atoms—one atom carrying a qubit and the other enabling the interaction—are used to store and process quantum information via intermediate molecular states. We show how gates, initialization, and readout operations could be implemented using this approach. In particular, we describe in some detail the implementation of a two-qubit phase gate in which a pair of atoms is transferred into the ground rovibrational state of a polar molecule with a large dipole moment, thus allowing atoms transferred into molecules to interact via their dipole-dipole interaction. We also discuss how the reverse process could be used as a non-destructive readout tool of molecular qubit states. Finally, we generalize these ideas to use a decoherence-free subspace for qubit encoding to minimize the decoherence due to magnetic field fluctuations. In this case, qubits will be encoded into field-insensitive states of two identical atoms, while a third atom of a different species will be used to realize a phase gate. Springer Science+Business Media, LLC, 2011 Neutral atom quantum computing nationallicence Polar molecules nationallicence Optical lattices nationallicence Dipole-dipole interaction nationallicence Kuznetsova Elena Department of Physics, University of Connecticut, 06269, Storrs, CT, USA aut Yelin S. Department of Physics, University of Connecticut, 06269, Storrs, CT, USA aut Côté Robin Department of Physics, University of Connecticut, 06269, Storrs, CT, USA aut Quantum Information Processing Springer US; http://www.springer-ny.com 10/6(2011-12-01), 821-838 1570-0755 10:6<821 2011 10 11128 https://doi.org/10.1007/s11128-011-0308-0 text/html Onlinezugriff via DOI 1 research-article jats NATIONALLICENCE 856 40 https://doi.org/10.1007/s11128-011-0308-0 text/html Onlinezugriff via DOI NATIONALLICENCE 700 1- Kuznetsova Elena Department of Physics, University of Connecticut, 06269, Storrs, CT, USA aut NATIONALLICENCE 700 1- Yelin S. Department of Physics, University of Connecticut, 06269, Storrs, CT, USA aut NATIONALLICENCE 700 1- Côté Robin Department of Physics, University of Connecticut, 06269, Storrs, CT, USA aut NATIONALLICENCE 773 0- Quantum Information Processing Springer US; http://www.springer-ny.com 10/6(2011-12-01), 821-838 1570-0755 10:6<821 2011 10 11128 Metadata rights reserved Springer special CC-BY-NC licence nationallicence BK010053 XK010053 XK010000 NATIONALLICENCE NATIONALLICENCE NL-springer