Hannover 2013 – wissenschaftliches Programm
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Q: Fachverband Quantenoptik und Photonik
Q 43: Poster II
Q 43.43: Poster
Mittwoch, 20. März 2013, 16:00–18:30, Empore Lichthof
Controlling the dynamics of a single atom interacting with a high-finesse cavity — •Katharina Rojan1, Daniel Reich2, Christiane Koch2, and Giovanna Morigi1 — 1Universität des Saarlandes, 66123 Saarbrücken — 2Universität Kassel, 34132 Kassel
Quantum state preparation of the electromagnetic field is a prerequisite for quantum networks. In microwave cavity quantum electrodynamics the field can be manipulated by atomic beams which cross the resonator. We consider the question, how to prepare an arbitrary target state of the cavity by means of the interaction with a single atom, assuming that both cavity and atom can be driven by external fields. The problem draws on the proposal of [1], who showed that in principle this can be realized with a suitably tailored time-dependent Hamiltonian. We identify the time-dependent dynamics which is required in order to achieve a set of target states in the fastest time using Optimal Control Theory, in particular Krotov’s method [2].
[1] C.K. Law and J.H. Eberly, Phys. Rev. Lett. 76, 1055 (1996)
[2] D.M. Reich, M. Ndong, and C.P. Koch, J. Chem. Phys. 136,
104103 (2012)