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Q: Fachverband Quantenoptik und Photonik
Q 42: Quanteninformation: Atome und Ionen II
Q 42.8: Vortrag
Donnerstag, 5. März 2009, 12:15–12:30, Audi-B
Perspectives of simulating spin-Boson systems with trapped ions — •Martin Enderlein1, Hector Schmitz2, Christian Schneider1, Thomas Huber1, and Tobias Schaetz1 — 1Max-Planck-Institut für Quantenoptik — 2LMU München
Under certain conditions, the Hamiltonian describing the electronic structure as well as the Coulomb interaction of trapped ions resembles the spin-Boson Hamiltonian which, e.g., describes quantum dissipation in solid-state physics. We aim for a quantum simulation where the spin is represented by two laser-coupled electronic levels of one ion and the phonons in a crystalline chain of ions play the role of the Bosonic bath [1]. Since trapped atomic ions provide a very clean system with a wide range of tunable parameters, this might also allow the experimental access to the strong coupling regime of the spin-Boson model (SBM), inaccessable in typical solid-state systems.
In this presentation we would like to discuss interesting features of the SBM and the perspectives of simulating them in our setup [2]. Since we recently achieved the initialisation of five ions in the radial motional ground state, we hope to observe behaviour characteristic for the SBM in a feasibility study.
[1] D. Porras et al., Physical Review A 78, 010101 (2008)
[2] A. Friedenauer et al., Nature Physics 4, 757 (2008)