[en] The Hamiltonian of the superradiance system analogous to the Heisenberg Hamiltonian, is derived from the first principles on the basis of notions on the exchange interaction of the two-level atom system, participating in the superradiance process. The constant of interaction, leading to establishing the superradiance state, is calculated in sequence. The existence of the isospin excitations in the superradiance state, leading to the decrease in the intensity of the corresponding pulse, is forecasted. The temperature dependence of the superradiance pulse intensity analogous to the Bloch law T^3/2 for the spin systems, is calculated