Hamburg 2009 – wissenschaftliches Programm
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Q: Fachverband Quantenoptik und Photonik
Q 30: Poster II
Q 30.31: Poster
Dienstag, 3. März 2009, 16:30–19:00, VMP 9 Poster
Towards a two-dimensional lattice of spins — •Christian Schneider1, Martin Enderlein1, Thomas Huber1, Hector Schmitz1,2, Axel Friedenauer1, and Tobias Schaetz1 — 1Max-Planck-Institut für Quantenoptik — 2LMU München
One of the state-of-the-art tools to investigate quantum algorithms/simulations is based on ions confined in a linear Paul trap. Recent experiments show that the bulky three-dimensional geometry of standard linear Paul traps can be translated into two-dimensional electrode setups on surfaces (but still being linear Paul traps) [1, 2]. Cryogenic conditions are shown to provide reduced heating rates allowing to further approach the surfaces [3]. A regular two-dimensional array of ions—small enough for sufficient interactions between the ions—could open a great new field of interesting experiments, e. g., the simulation of Quantum Spin Hamiltonians [4, 5], like the Bose-Hubbard model [6], or spin frustrations. Based on the above developments we aim for realizing a surface trap allowing for the confinement of a two-dimensional ion crystal (being equivalent to a lattice of spins). Our first milestone is a proof-of-concept experiment with a 2×2 array of ions at mutual distances of 20µ m.
[1] J. Chiaverini et al., Quant. Inf. Comp. 5, 419, 2005
[2] S. Seidelin et al., Phys. Rev. Lett. 96, 253003, 2006
[3] J. Labaziewicz et al., Phys. Rev. Lett. 100, 013001, 2008
[4] D. Porras and J.I. Cirac, Phys. Rev. Lett. 92, 207901, 2004
[5] A. Friedenauer, H. Schmitz et al., Nat. Phys. 4, 757, 2008
[6] D. Porras and J.I. Cirac, Phys. Rev. Lett. 93, 263602, 2004