caa a22 4500 445867477 CHVBK 20180317145502.0 cr unu---uuuuu 170323e20111101xx s 000 0 eng 10.1140/epjd/e2011-20095-2 doi (NATIONALLICENCE)springer-10.1140/epjd/e2011-20095-2 State-dependent lattices for quantum computing with alkaline-earth-metal atoms [Elektronische Daten] [A. Daley, J. Ye, P. Zoller] Recent experimental progress with Alkaline-Earth atoms has opened the door to quantum computing schemes in which qubits are encoded in long-lived nuclear spin states, and the metastable electronic states of these species are used for manipulation and readout of the qubits. Here we discuss a variant of these schemes, in which gate operations are performed in nuclear-spin-dependent optical lattices, formed by near-resonant coupling to the metastable excited state. This provides an alternative to a previous scheme [Phys. Rev. Lett. 101, 170504 (2008)], which involved independent lattices for different electronic states. As in the previous case, we show how existing ideas for quantum computing with Alkali atoms such as entanglement via controlled collisions can be freed from important technical restrictions. We also provide additional details on the use of collisional losses from metastable states to perform gate operations via a lossy blockade mechanism. EDP Sciences, SIF, Springer-Verlag Berlin Heidelberg, 2011 Daley A. Institute for Quantum Optics and Quantum Information of the Austrian Academy of Sciences, 6020, Innsbruck, Austria aut Ye J. JILA, National Institute of Standards and Technology and University of Colorado and Department of Physics, University of Colorado, 80309-0440, Boulder, CO, USA aut Zoller P. Institute for Quantum Optics and Quantum Information of the Austrian Academy of Sciences, 6020, Innsbruck, Austria aut The European Physical Journal D Springer-Verlag 65/1-2(2011-11-01), 207-217 1434-6060 65:1-2<207 2011 65 10053 https://doi.org/10.1140/epjd/e2011-20095-2 text/html Onlinezugriff via DOI 1 research-article jats NATIONALLICENCE 856 40 https://doi.org/10.1140/epjd/e2011-20095-2 text/html Onlinezugriff via DOI NATIONALLICENCE 700 1- Daley A. Institute for Quantum Optics and Quantum Information of the Austrian Academy of Sciences, 6020, Innsbruck, Austria aut NATIONALLICENCE 700 1- Ye J. JILA, National Institute of Standards and Technology and University of Colorado and Department of Physics, University of Colorado, 80309-0440, Boulder, CO, USA aut NATIONALLICENCE 700 1- Zoller P. Institute for Quantum Optics and Quantum Information of the Austrian Academy of Sciences, 6020, Innsbruck, Austria aut NATIONALLICENCE 773 0- The European Physical Journal D Springer-Verlag 65/1-2(2011-11-01), 207-217 1434-6060 65:1-2<207 2011 65 10053 Metadata rights reserved Springer special CC-BY-NC licence nationallicence BK010053 XK010053 XK010000 NATIONALLICENCE NATIONALLICENCE NL-springer