Stuttgart 2012 – scientific programme
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Q: Fachverband Quantenoptik und Photonik
Q 34: Poster 1
Q 34.6: Poster
Tuesday, March 13, 2012, 16:30–19:00, Poster.I+II
From Maxwell Equations to Bose-Einstein Condensation of Photons — •Tobias Rexin1, Carsten Henkel1, and Axel Pelster2 — 1Institut für Physik und Astronomie, Universität Potsdam, Germany — 2Hanse-Wissenschaftskolleg, Delmenhorst, Germany
Light confined in a microcavity [1] is described by Maxwell’s equations with appropriate boundary conditions.
A careful analysis of the corresponding boundary value problem in oblate spheroidal
coordinates provides a systematic approach to determine the underlying mode functions.
In the paraxial approximation, this three-dimensional microcavity problem can be reduced
to an effective two-dimensional
trapped massive Bose gas. This result supports the heuristic derivation of Ref. [2], where even the Bose-Einstein
condensation of these massive photons was observed. We present recent calculations of
the mode structure and correlation functions in thermodynamic equilibrium.
[1] J. Klaers, F. Vewinger, and M. Weitz, Nature Physics 6, 512 (2010).
[2] J. Klaers, J. Schmitt, F. Vewinger, and M. Weitz, Nature 468, 545 (2010).