Berlin 2014 – wissenschaftliches Programm

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Q: Fachverband Quantenoptik und Photonik

Q 30: Poster: Photonics, laser development and applications, ultrashort laser pulses, quantum effects

Q 30.67: Poster

Dienstag, 18. März 2014, 16:30–18:30, Spree-Palais

Super-Adiabatic Transfer in Three-level Systems — •Luigi Giannelli1,2 and Ennio Arimondo1,31Dipartimento di Fisica, Università di Pisa, Largo Pontecorvo 3, 56127 Pisa, Italy — 2Theoretische Physik, Universität des Saarlandes, Campus E2.6, D 66123 Saarbrücken, Germany — 3INO-CNR, Università di Pisa, Largo Pontecorvo 3, 56127 Pisa, Italy

Superadiabatic quantum driving allows for a perfect adiabatic transfer between an initial and a final quantum state by applying an auxiliary Hamiltonian which cancels non-adiabatic transitions.

We apply this theoretical method to the transfer of population in a three-level system, either in cascade or Lambda configuration. As a reference, we consider stimulated Raman adiabatic passage with different laser pulses and determine the superadiabatic correction for each scheme. The fidelity and the transfer time for the schemes are compared.

Moreover, we discuss the robustness of the three-level superadiabatic transfer with respect to changes in driving parameters, and compare the benefits with the challenges in the implementation.

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DPG-Physik > DPG-Verhandlungen > 2014 > Berlin