The collective mode spectrum in polar phase of superfluid ³He

• Published in: Физика низких температур
• Date: 1995
• Main Authors: Brusov, P.N., Lomakov, M.N., Brusova, N.P.
• Format: Article
• Language: English
• Published: Фізико-технічний інститут низьких температур ім. Б.І. Вєркіна НАН України 1995
• Subjects: Кpаткие сообщения
• Online Access: https://nasplib.isofts.kiev.ua/handle/123456789/175110
• Journal Title: Digital Library of Periodicals of National Academy of Sciences of Ukraine
• Cite this: The collective mode spectrum in polar phase of superfluid ³He / P.N. Brusov, M.N. Lomakov, N.P. Brusova // Физика низких температур. — 1995. — Т. 21, № 1. — С. 111-113. — Бібліогр.: 2 назв. — англ.

Using the path integration technique, developed by Brusov and Popov earlier [1], we calculate the collective mode spectrum at zero momentum of excitations for polar phase of superfluid ³He. We found six modes with energy E = (1.20 - 1.75i)△₀ which damp strongly and three Goldslone modes with zero en...