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Q: Fachverband Quantenoptik und Photonik

Q 23: Poster 2: Intersectional Session

Q 23.44: Poster

Dienstag, 15. März 2011, 18:00–21:00, P1

Opical Trapping of an Ion - Results and Perspectives — •Thomas Huber, Martin Enderlein, Christian Schneider, Stephan Duewel, Johannes Stroehle, and Tobias Schaetz — MPI für Quantenoptik

The simulation of large quantum systems on conventional computers is impossible, since quantum behavior is not efficiently translatable in classical language. However, one could gain deeper insight into complex quantum dynamics via experimentally simulating the quantum behaviour of interest in quantum system, where some relevant parameters can be controlled and robust effects detected sufficiently well. One example is simulating quantum-spin systems with trapped ions and one approach among others to reach scalability might be to combine the advantages of trapped ions with optical lattices. As a first experimental step, we were able to trap an ion in an optical dipole trap. The measured lifetime of milliseconds allows for hundreds of oscillations within the optical potential. It is limited by heating due to photon scattering. In the near future, we plan to realize cooling to increase the lifetime and to investigate the limitations on the coherence times. Next to quantum simulations with several ions interacting via phonons like the simulation of the Ising Hamiltonian, a new class of quantum simulations might become accessible, based on the potentially intriguing interplay between neutral and charged particles in common optical lattices. Furthermore, confining an ion and atoms in one common optical dipole trap might allow to investigate ultra cold collisions without the limitations set by radio-frequency driven micro-motion.