Berlin 2005 – scientific programme

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Q: Quantenoptik und Photonik

Q 13: Quanteneffekte I

Q 13.5: Talk

Saturday, March 5, 2005, 09:30–09:45, HU 1072

Quantum optical approach to kinetic energy densities — •Dirk Seidel¹, Gerhard C. Hegerfeldt¹, and J. Gonzalo Muga² — ¹Institut für Theoretische Physik, Universität Göttingen, Friedrich-Hund-Platz 1, 37077 Göttingen — ²Departamento de Quimica-Fisica, Universidad del Pais Vasco, Apartado Postal 644, 48080 Bilbao, Spain

We give a measurement based (operational) approach to a positive quantum version of the local kinetic energy density. This is achieved by considering the detection rate of photons which are emitted by a moving three-level atom excited by a localized laser beam. The relation to quantum arrival-time distributions obtained with the same type of experiment is pointed out.