Dresden 2011 – wissenschaftliches Programm

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A: Fachverband Atomphysik

A 26: Poster III

A 26.34: Poster

Donnerstag, 17. März 2011, 16:00–18:30, P2

Accurate Realization of Mach-Zehnder Interferometer via Dressed State Interference in Atomic Beam Spectroscopy. — •Vents Valle^1,2, Vyascheslavs Kascheyevs^2,3, Juris Ulmanis², Zanda Krumina², and Aigars Ekers² — ¹Institute of Physics, Rostock University, Rostock D-18051, Germany — ²Laser Center, University of Latvia, LV-1002 Riga, Latvia — ³Faculty of Computing, University of Latvia, Riga LV-1586, Latvia

It is possible to manipulate energy levels of laser dressed atomic states via intensity and frequency of laser radiation. Such manipulations in abstract two level system may introduce additional time evolution that consists of two level crossings when the dressed energy levels are close (described approximately by Landau-Zener transitions) thus creating two alternative, in general, conjoined evolution paths between the crossings.

In our research we describe situation where an energy level of constant value is crossed twice by another energy level that evolves as a Gaussian curve. We develop a full model of such two level system using Mach-Zehnder interferometer as a base model and discuss accuracy of the model for different scenarios of energy levels' evolution.