Regensburg 2010 – scientific programme
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TT: Fachverband Tiefe Temperaturen
TT 8: CE: (General) Theory
TT 8.1: Talk
Monday, March 22, 2010, 14:00–14:15, H21
Quantum Simulations of Exotic Spin Models — •Hendrik Weimer1, Markus Müller2, Igor Lesanovsky3, Peter Zoller2, and Hans Peter Büchler1 — 1Institut 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 with cold Rydberg atoms [1], we present an implementation of a digital quantum simulator [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).