Title: Quantum control by parallel adiabatic passage: From quantum information processing to laser-driven quantum machines Speaker: Stephane Guérin Laboratoire Interdisciplinaire Carnot de Bourgogne Université de Bourgogne, Dijon, France Time: Thursday, April 7, 15.15 to 16.00 Place: Fysisk Auditorium Abstract: We present the technique of fast parallel adiabatic passage and its application to the control of quantum processes such as state-selectivity, to quantum information processing, and to the manipulation of the rotation of molecules to implement quantum machines, such as a quantum gear. This technique corresponds to an adiabatic passage for which the instantaneous eigenvalues are parallel at each time. It induces a very efficient population transfer in terms of pulse energy and duration, while preserving the standard robustness of adiabatic techniques. It can be implemented in optics with the modern technology of liquid crystal spatial light modulators. This opens the possibility to implement a Stimulated Raman adiabatic passage technique in a sub-picosecond regime. D. Daems and S. Guérin, Adiabatic quantum search scheme with atoms in a cavity driven by lasers, Phys. Rev. Lett. 99, 170503 (2007). G. Dridi S. Guérin, V. Hakobyan, H.R. Jauslin, and H. Eleuch, Ultrafast stimulated Raman parallel adiabatic passage by shaped pulses, Phys. Rev. A 80, 043408 (2009). M. Lapert, S. Guérin, and D. Sugny, Field-free quantum cogwheel by shaping of rotational wave packets, Phys. Rev. A 83, 013403 (2011). Jacob Sherson and Aurélien Dantan Coffee, tea and cake will be served at 15.05 ----------------------------------- Aurelien Dantan Ion Trap Group Department of Physics and Astronomy University of Aarhus Ny Munkegade, bygn. 1520 8000 Aarhus Denmark +4589423602