Physical Review A
053805 (13 pages)
Elastic light scattering from a macroscopic atomic sample existing in the Bose-Einstein condensate phase reveals a unique physical configuration of interacting light and matter waves. However, the joint coherent dynamics of the optical excitation induced by an incident photon is influenced by the presence of incoherent scattering channels. For a sample of sufficient length the excitation transports as a polariton wave and the propagation Green's function obeys the scattering equation which we derive. The polariton dynamics could be tracked in the outgoing channel of the scattered photon as we show via numerical solution of the scattering equation for one-dimensional geometry. The results are analyzed and compared with predictions of the conventional macroscopic Maxwell theory for light scattering from a nondegenerate atomic sample of the same density and size.
Original Publication Citation
Porozova, V. M., Gerasimov, L. V., Havey, M. D., & Kupriyanov, D. V. (2018). Light scattering from an atomic gas under conditions of quantum degeneracy. Physical Review A, 97(5), 053805. doi:10.1103/PhysRevA.97.053805
Porozova, V. M.; Gerasimov, L. V.; and Havey, M. D., "Light Scattering From an Atomic Gas Under Conditions of Quantum Degeneracy" (2018). Physics Faculty Publications. 189.