On the energy flux and Poynting vector in a moving dispersive dielectric

@article{Ko-Chuang-1977, abstract = {It is shown that in a moving, lossless, dispersive dielectric, the group velocity is distinct from the energy velocity defined as the ratio of the Poynting vector and the energy density. The total energy flux is equal to the product of the total energy density and the group velocity. It consists of the electromagnetic flux represented by the Poynting vector and the particle energy flux associated with the motion of particles in the medium. Only the group velocity is shown to obey Einstein's velocity addition theorem rigorously for a moving dispersive dielectric. When a dielectric which is only frequency dispersive in its own rest frame is set in motion, it is shown that the dielectric displays properties characteristic of spatial dispersion.}, author = {Ko, H. C. and Chuang, C. W. }, citeulike-article-id = {2285706}, journal = {Radio Science}, keywords = {slow-light, spontaneous-emission-paper}, month = {April}, pages = {337--340}, posted-at = {2008-01-24 19:07:01}, priority = {2}, title = {On the energy flux and Poynting vector in a moving dispersive dielectric}, url = {http://adsabs.harvard.edu/cgi-bin/nph-bib\_query?bibcode=1977RaSc...12..337K}, volume = {12}, year = {1977} }

TY - JOUR ID - Ko-Chuang-1977 L3 - citeulike-article-id:2285706 TI - On the energy flux and Poynting vector in a moving dispersive dielectric JF - Radio Science VL - 12 SP - 337 EP - 340 N2 - It is shown that in a moving, lossless, dispersive dielectric, the group velocity is distinct from the energy velocity defined as the ratio of the Poynting vector and the energy density. The total energy flux is equal to the product of the total energy density and the group velocity. It consists of the electromagnetic flux represented by the Poynting vector and the particle energy flux associated with the motion of particles in the medium. Only the group velocity is shown to obey Einstein's velocity addition theorem rigorously for a moving dispersive dielectric. When a dielectric which is only frequency dispersive in its own rest frame is set in motion, it is shown that the dielectric displays properties characteristic of spatial dispersion. KW - slow-light KW - spontaneous-emission-paper AU - Ko, HC AU - Chuang, CW PY - 1977/April// UR - http://adsabs.harvard.edu/cgi-bin/nph-bib_query?bibcode=1977RaSc...12..337K ER -