Zhur. Eksptl'. i Teoret. Fiz.

COLLECTIVE EXCITATIONS OF PARTICLES WITH NON-ZERO ANGULAR MOMENTUM PAIRING

Валентин Григорьевич Вакс, Viktor Mikhaĭlovich Galit︠s︡kiĭ, A. I. Larkin

Published May 1, 1962• 0 citations

Abstract

Collective excitations are considered for a system of Fermi particles for which attraction in a state with nonzero angular momentum is predominant. In such a system, beside sound excitations, other collective excitations without a gap in the energy spectrum will exist. The velocity of these excitations can be expressed in terms of the gap in the single-particle excitation spectrum. It is pointed out that the solution for the ground state function with DELTA (n)~Y/sub 22/ (n) is unstable. (auth)

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