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Universal Relaxation Times for Electron and Nucleon Gases Excited by Ultra-Short Laser Pulses
M. Pelc, J. Marciak-Kozlowska and M. Kozlowski

In this paper we calculate the universal relaxation times for electron and nucleon fermionic gases. We argue that the universal relaxation time t(i) is equal t(i) = h(i) /mv i)2 where v(i) = a(i)c and a(1) =0.15 for a nucleon gas and a(2 =1 137 for electron gas, c =light velocity. With the universal relaxation time we derive the thermal Proca equation for fermionic gases.

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