A topological viewpoint on consistency aspects of electromagnetic theory on a lattice

@article{Teixeira1999ATV,
  title={A topological viewpoint on consistency aspects of electromagnetic theory on a lattice},
  author={F. L. Teixeira and W W Chew},
  journal={IEEE Antennas and Propagation Society International Symposium. 1999 Digest. Held in conjunction with: USNC/URSI National Radio Science Meeting (Cat. No.99CH37010)},
  year={1999},
  volume={2},
  pages={1254-1257 vol.2}
}
In many applications, the continuum electromagnetic (EM) theory needs to be replaced by a discrete theory on a spatial lattice. A lattice EM theory has well-known phenomena not present on the continuum counterpart, such as finite frequency cut-off and rotational symmetry breaking. These may be viewed as approximations of to the continuum theory, but not as… CONTINUE READING