caa a22 4500 445886455 CHVBK 20180317145601.0 cr unu---uuuuu 170323e20111201xx s 000 0 eng 10.1007/s11128-011-0303-5 doi (NATIONALLICENCE)springer-10.1007/s11128-011-0303-5 Digital quantum simulation with Rydberg atoms [Elektronische Daten] [H. Weimer, M. Müller, H. Büchler, I. Lesanovsky] We discuss in detail the implementation of an open-system quantum simulator with Rydberg states of neutral atoms held in an optical lattice. Our scheme allows one to realize both coherent as well as dissipative dynamics of complex spin models involving many-body interactions and constraints. The central building block of the simulation scheme is constituted by a mesoscopic Rydberg gate that permits the entanglement of several atoms in an efficient, robust and quick protocol. In addition, optical pumping on ancillary atoms provides the dissipative ingredient for engineering the coupling between the system and a tailored environment. As an illustration, we discuss how the simulator enables the simulation of coherent evolution of quantum spin models such as the two-dimensional Heisenberg model and Kitaev's toric code, which involves four-body spin interactions. We moreover show that in principle also the simulation of lattice fermions can be achieved. As an example for zcontrolled dissipative dynamics, we discuss ground state cooling of frustration-free spin Hamiltonians. Springer Science+Business Media, LLC, 2011 Quantum simulator nationallicence Digital quantum simulation nationallicence Rydberg atoms nationallicence Dissipative dynamics nationallicence Weimer H. Department of Physics, Harvard University, 17 Oxford Street, 02138, Cambridge, MA, USA aut Müller M. Institut für Quantenoptik und Quanteninformation der Österreichischen Akademie der Wissenschaften, Institut für Theoretische Physik der Universität Innsbruck, 6020, Innsbruck, Austria aut Büchler H. Institute for Theoretical Physics III, University of Stuttgart, Stuttgart, Germany aut Lesanovsky I. Midlands Ultracold Atom Research Centre (MUARC), School of Physics and Astronomy, The University of Nottingham, NG7 2RD, Nottingham, UK aut Quantum Information Processing Springer US; http://www.springer-ny.com 10/6(2011-12-01), 885-906 1570-0755 10:6<885 2011 10 11128 https://doi.org/10.1007/s11128-011-0303-5 text/html Onlinezugriff via DOI 1 research-article jats NATIONALLICENCE 856 40 https://doi.org/10.1007/s11128-011-0303-5 text/html Onlinezugriff via DOI NATIONALLICENCE 700 1- Weimer H. Department of Physics, Harvard University, 17 Oxford Street, 02138, Cambridge, MA, USA aut NATIONALLICENCE 700 1- Müller M. Institut für Quantenoptik und Quanteninformation der Österreichischen Akademie der Wissenschaften, Institut für Theoretische Physik der Universität Innsbruck, 6020, Innsbruck, Austria aut NATIONALLICENCE 700 1- Büchler H. Institute for Theoretical Physics III, University of Stuttgart, Stuttgart, Germany aut NATIONALLICENCE 700 1- Lesanovsky I. Midlands Ultracold Atom Research Centre (MUARC), School of Physics and Astronomy, The University of Nottingham, NG7 2RD, Nottingham, UK aut NATIONALLICENCE 773 0- Quantum Information Processing Springer US; http://www.springer-ny.com 10/6(2011-12-01), 885-906 1570-0755 10:6<885 2011 10 11128 Metadata rights reserved Springer special CC-BY-NC licence nationallicence BK010053 XK010053 XK010000 NATIONALLICENCE NATIONALLICENCE NL-springer