До природи вузької ротонної лінії поглинання в спектрі дискового НВЧ резонатора

• Date: 2022
• Main Authors: Loktev, V.M., Tomchenko, M.D.
• Format: Article
• Language: English
• Published: Publishing house "Academperiodika" 2022
• Subjects: -
• Online Access: https://ujp.bitp.kiev.ua/index.php/ujp/article/view/2022154
• Journal Title: Ukrainian Journal of Physics

We calculate the probability of the creation of a circular phonon (c-phonon) in He II by a c-photon of the resonator. It is shown that this probability has sharp maxima at frequencies, where the effective group velocity of the c-phonon is equal to zero; the density of states of c-phonons strongly gr...