Note on Many Fermion Problems

T. Nishiyama
1951 Progress of theoretical physics  
Non-equilibrium properties of the statistical operator are formulated in the scheme of second quantization. Some formulae of the so·called quantum hydrodynamics of Landau and those of Born and Green are examined from our point of view. Further we study TOlllonaga's theory of one dimensional sound quanta introducing spin degeneracies, and we make some discussions about the three dimensional problem.
doi:10.1143/ptp/6.3.366 fatcat:2ab673ezhfcwzah6635uz5yidm