Suppression of superradiance from an ensemble of two-level atoms in the presence of foreign gas collisions

- Superradiant flux suppression caused by decoherence due to foreign gas collisions.
- Two regimes of functional dependence on foreign gas width.
- Analysis based on eigenmodes of the 1-D Lienard-Wiechert kernel.
- Difference between total decay-rate and real part of key eigenvalues specify regime.