Quantum Optics Group at the University of Potsdam

We study quantum optics in the near field. This is relevant for several different contexts:

scanning microscopes striving for high resolution
miniaturized traps for quantum degenerate gases
('atom chips')
atom-surface interactions mediated by the radiation field
mechanical effects of light at the mesoscopic scale
('Casimir effect', 'nanomechanical oscillators')
quantum logical gates with strings of trapped ions

In these situations, the electromagnetic field and its fluctuations (thermal and quantum) have to be described in an inhomogeneous, macroscopic environment. The fields show a profoundly different behaviour compared to free space.

Cooperations

Funding

Presentations & Talks

Projects:

Radiation forces on atoms moving near a dielectric surface
Gregor Pieplow (diploma thesis 2013)
Resonance fluorescence in a photonic crystal
Geesche Boedecker (PhD 2013)
Fluctuation-mediated interations of atoms and surfaces on a mesoscopic scale
Harald R. Haakh (PhD 2012)
Cavity quantum electrodynamics with Bose-condensed atoms
Jürgen Schiefele (PhD 2011)
Atom chips and magnetic fluctuations
Bo Zhang (PhD 2009)
The Casimir effect at finite temperature between superconductors
Francesco Intravaia and Harald Haakh (diploma thesis 2009)
Interactions between a surface and an atom or nanoparticle
Harald Haakh, Francesco Intravaia and Salvo Spagnolo
Connecting individual electron traps with a macroscopic wire
Jorge Zurita Sanchez (Puebla, Mexico)
Numerical simulations for trapped Bose gases at finite temperature
Antonio Negretti (Ulm, Germany), Stuart Cockburn and Nick Proukakis (Newcastle, UK)
Optomechanical coupling for mobile mirrors
Christian Höhne, Maria Martin, and Marc Herzog
Photon pair generation by transiently accelerated electrons and the Unruh effect
Dennis Rätzel (diploma thesis 2009)

C. Henkel, 08 Jun 2010

Summary:

Projects: