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TMF, 1983, Volume 57, Number 2, Pages 249–256 (Mi tmf2258)  

Collective excitations in the superfluid $A$ and $B$ phases of $\operatorname{He}^3$ in an electric field

P. N. Brusov, V. N. Popov


Abstract: The influence of an electric field on Bose excitations in the superfluid $A$ and $B$ phases of a system of $\operatorname{He}^3$ type is investigated by the functional integration method. To find the Bose spectrum of the system in an electric field, a functional of the hydrodynamic (effective) action is constructed. In the first approximation, the electric field influences only the acoustic modes in both the $A$ and the $B$ phase. In both phases, the acoustic spectrum has the same form and becomes anisotropic in the electric field. The velocity of sound is maximal in the direction of the electric field.

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English version:
Theoretical and Mathematical Physics, 1983, 57:2, 1118–1123

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Received: 21.03.1983

Citation: P. N. Brusov, V. N. Popov, “Collective excitations in the superfluid $A$ and $B$ phases of $\operatorname{He}^3$ in an electric field”, TMF, 57:2 (1983), 249–256; Theoret. and Math. Phys., 57:2 (1983), 1118–1123

Citation in format AMSBIB
\Bibitem{BruPop83}
\by P.~N.~Brusov, V.~N.~Popov
\paper Collective excitations in the superfluid $A$~and $B$~phases of~$\operatorname{He}^3$ in an electric field
\jour TMF
\yr 1983
\vol 57
\issue 2
\pages 249--256
\mathnet{http://mi.mathnet.ru/tmf2258}
\transl
\jour Theoret. and Math. Phys.
\yr 1983
\vol 57
\issue 2
\pages 1118--1123
\crossref{https://doi.org/10.1007/BF01018655}
\isi{http://gateway.isiknowledge.com/gateway/Gateway.cgi?GWVersion=2&SrcApp=PARTNER_APP&SrcAuth=LinksAMR&DestLinkType=FullRecord&DestApp=ALL_WOS&KeyUT=A1983SX71000008}


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  • Теоретическая и математическая физика Theoretical and Mathematical Physics
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