Dynamics of the electric current in an ideal electron gas: A sound mode inside the quasiparticles

  title={Dynamics of the electric current in an ideal electron gas: A sound mode inside the quasiparticles},
  author={Savso Grozdanov and Janos Polonyi},
  journal={Physical Review D},
We study the equation of motion for the Noether current in an electron gas within the framework of the Schwinger-Keldysh Closed-Time-Path formalism. The equation is shown to be highly non-linear and irreversible even for a non-interacting, ideal gas of electrons at non-zero density. We truncate the linearised equation of motion, written as the Laurent series in Fourier space, so that the resulting expressions are local in time, both at zero and at small finite temperatures. Furthermore, we show… 

Adiabatic hydrodynamics: the eightfold way to dissipation

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Nonequilibrium quantum field theory

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Statistical Physics

Statistical Physics. By F. Mandl. Pp. xiii + 379. (Wiley: London and New York, July 1971.) £2.75. Statistical Physics. By A. Isihara. Pp. xv + 439. (Academic: New York and London, June 1971.) $18.50;


  • Rev. D 91, 105031
  • 2015

Statistical Physics II: Nonequilibrium Statistical Mechanics

Electrodynamics of Particles and Plasmas


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