Proca Equation for Attosecond Electron Pulses
  In this paper the heat transport of attosecond electron pulses is investigated. It is shown that attosecond electrons can propagate as thermal waves or diffused as particle conglommerates, Proca equation as type equation for the thermal transport of the attosecond electron pulsem is formulated 
Magdalena Pelc, Janina Marciak-Kozlowska, Miroslaw Kozlowski