Hannover 2010 – wissenschaftliches Programm

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Q: Fachverband Quantenoptik und Photonik

Q 17: Quantum Information: Atoms and Ions I

Q 17.7: Vortrag

Dienstag, 9. März 2010, 16:00–16:15, E 214

Digital Coherent and Dissipative Quantum Simulations with Rydberg Atoms — •Hendrik Weimer1, Markus Müller2, Igor Lesanovsky3, Peter Zoller2, and Hans Peter Büchler11Institut für Theoretische Physik III, Universität Stuttgart — 2Institut für Theoretische Physik, Universität Innsbruck, und Institut für Quantenoptik und Quanteninformation der Österreichischen Akademie der Wissenschaften, Innsbruck — 3School of Physics and Astronomy, The University of Nottingham

A universal quantum simulator is a controlled quantum device which efficiently reproduces the dynamics of any other many particle quantum system with short range interactions. Based on a recent proposal for a many-body gate using strong interactions between Rydberg atoms [1], we present an implementation of a digital quantum simulator in an optical lattice with large lattice spacing [2]. Special focus is on the efficient simulation of Hamiltonians with local many-body interactions, including exotic spin models such as Kitaev’s toric code, string nets, and lattice gauge theories. In addition, we show that the formalism also provides the simulation of dissipative terms taking the Lindblad form with many-body jump operators. These dissipative terms allow for the efficient ground state cooling and state preparation.

[1] M. Müller et al., Phys. Rev. Lett. 102, 170502 (2009).

[2] H. Weimer et al., arXiv:0907.1657 (2009).

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