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Methodological notes


Bose condensation of moving rotons

 a,  b, c
a Landau Institute for Theoretical Physics, Russian Academy of Sciences, prosp. Akademika Semenova 1A, Chernogolovka, Moscow Region, 142432, Russian Federation
b Kapitza Institute of Physical Problems, Russian Academy of Sciences, ul. Kosygina 2, Moscow, 117334, Russian Federation
c Dipartimento di Fisica, Università di Trento and BDC Center, Povo, Trento, I-38050, Italy

If the initial roton distribution in helium has a resultant momentum above a certain critical value, it will relax to a state with a Bose condensate of particles with a nonzero momentum. In this state, the velocity of the normal component of the liquid will be equal to the Landau critical velocity.

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Fulltext is also available at DOI: 10.1070/PU1980v023n06ABEH004937
PACS: 67.40.Fd
DOI: 10.1070/PU1980v023n06ABEH004937
URL: https://ufn.ru/en/articles/1980/6/d/
Citation: Iordanskii S V, Pitaevskii L P "Bose condensation of moving rotons" Sov. Phys. Usp. 23 317–318 (1980)
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Оригинал: Иорданский С В, Питаевский Л П «Бозе-конденсация движущихся ротонов» УФН 131 293–295 (1980); DOI: 10.3367/UFNr.0131.198006f.0293

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