In numerous media (nonlinear material, moving dielectrics, superfluids, Bose–Einstein condensates, and others) and different in vacuo states (nontrivial quantum electrodynamics in vacuo) matter or vacuum fluctuations modify light propagation in the same way that an effective gravitational field does. This nonlinear optical behavior affects not only the energy paths but also the form of the energetic invariant. However, such a function plays a key role when we try to develop a phenomenological kinetic theory for participating media. I analyze how modification of light propagation transforms the energetic invariant and modifies its transport inside a participating medium. A semianalytical method is presented to solve the radiative transfer equation for any spherically symmetric problems.
© 2001 Optical Society of America
Original Manuscript: December 15, 2000
Revised Manuscript: June 6, 2001
Published: October 20, 2001
Philippe Ben-Abdallah, "Energetic and optical consequences in isotropic curved space and time," Appl. Opt. 40, 5452-5458 (2001)