Hannover 2020 – scientific programme

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MO: Fachverband Molekülphysik

MO 19: MO Poster 4

MO 19.1: Poster

Thursday, March 12, 2020, 17:00–19:00, Empore Lichthof

Coherent control of Lanthanides as molecular quantum bits using shaped femtosecond laser pulses — •Mirali Gheibi, Jayanta Ghosh, Cristian Sarpe, Bastian Zielinski, Tillman Kalas, Ramela Ciobotea, Arne Senftleben, Hendrike Braun, and Thomas Baumert — Universität Kassel, Institute of Physics, Heinrich-Plett-Str. 40, 34132 Kassel, Germany

SMolBits - Scalable Molecular Quantum Bits - is a project in the framework of LOEWE (Hessian Initiative for the Development of Scientific-Economic Excellence). Its aim is the realization of ideal quantum systems with long-lived levels, isolated from the environment to form quantum bits as key building blocks for advanced quantum technologies. Lanthanides are particularly promising with respect to possible applications in quantum-based information storage at the atomic and molecular level. Their energy levels and electronic states are barely influenced by the environment and their bonds to the ligands attached to the lanthanides. Some of them show a prominent absorption feature around 800 nm, the central wavelength of typical Ti:Sapphire laser systems. We have begun investigations of the electronic coherences excited in lanthanide salts by interaction with IR femtosecond laser pulses and their lifetimes using phase-locked double pulses and fluorescence detection under a confocal microscope. As a next step we will study the influence of spectrally phase shaped femtosecond laser pulses in the non-pertubative regime onto the excitation and the created electronic coherence.