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Q: Fachverband Quantenoptik und Photonik
Q 34: Ultrakalte Rydberggase [gemeinsam mit A]
Q 34.6: Vortrag
Donnerstag, 13. März 2008, 09:45–10:00, 2G
Rydberg excitations in an Ion Trap — •Igor Lesanovsky1, Markus Müller1, Lin-Mei Liang1,2, and Peter Zoller1 — 1Institute for Theoretical Physics, University of Innsbruck, and Institute for Quantum Optics and Quantum Information of the Austrian Academy of Sciences, Innsbruck, Austria — 2Department of Physcis, National University of Defense Technology, Changsha 410073, China
We investigate Rydberg excitations of ions which are trapped in a linear Paul trap. In such trap the ions are confined by an electric quadrupole field and a ponderomotive potential due to an oscillating quadrupole. We employ a two-body approach in order to model the Rydberg ions and derive the Hamiltonian governing Rydberg excitations in a linear ion crystal. We show how a strong state-dependent dipole-dipole interaction among the ions can be achieved by coupling Rydberg states of different parity using a microwave field. This system offers the possibility to study Rydberg excitation dynamics of a mesoscopic ensemble in a structured environment and permits the experimental realization of strongly interacting spin models.