Stuttgart 2012 – wissenschaftliches Programm
Q 34.6: Poster
Dienstag, 13. März 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  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. , 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.
 J. Klaers, F. Vewinger, and M. Weitz, Nature Physics 6, 512 (2010).
 J. Klaers, J. Schmitt, F. Vewinger, and M. Weitz, Nature 468, 545 (2010).