636 citations · 2k across the 47 of their papers we have counts for
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hep-ph2004★ 11 cited
"Classical" instabilities and "quantum" speed-up in the evolution of neutrino clouds
R. F. Sawyer
We study some examples of collective behavior in neutrino clouds governed by the neutral-current neutrino-neutrino interaction. The standard equations for analyzing such systems ar…
hep-ph2004★ 9 cited
Collective polarization exchanges in collisions of photon clouds
R. F. Sawyer
The one-loop "vacuum" Heisenberg-Euler coupling of four electromagnetic fields can lead to interesting collective effects in the collision of two photon clouds, on a time scale ord…
hep-ph2004
Polarization precession in photon-photon encounters
R. F. Sawyer
We calculate the rate of precession of the direction of polarization of a photon traversing a sea of plane-polarized photons moving in the opposed direction, where the interaction…