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On the Quantum Kinetic Equation in Weak Turbulence

Mark Rakowski·Siddhartha Sen
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Abstract

The quantum kinetic equation used in the study of weak turbulence is reconsidered in the context of a theory with a generic quartic interaction. The expectation value of the time derivative of the mode number operators is computed in a perturbation expansion which places the large diagonal component of the quartic term in the unperturbed Hamiltonian. Although one is not perturbing around a free field theory, the calculation is easily tractable owing to the fact that the unperturbed Hamiltonian can be written solely in terms of the mode number operators.

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Mark Rakowski, Siddhartha Sen. 1995-10-19. On the Quantum Kinetic Equation in Weak Turbulence. https://doi.org/10.1103/physreve.53.586

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