Can ion-acoustic waves in plasma be backward waves?


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Аннотация

The dispersion relation for ion-acoustic waves in plasma with ion flow has been analyzed. It is shown that these waves may exist (under certain conditions) in the form of backward waves with antiparallel group and phase velocities. The range of ion flow velocities allowing implementation of backward ion-acoustic waves is found.

Авторлар туралы

A. Dubinov

Russian Federal Nuclear Center−All-Russian Research Institute of Experimental Physics; National Research Nuclear University MEPhI (Moscow Engineering Physics Institute); Sarov State Physics and Technical Institute

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Email: dubinov-ae@yandex.ru
Ресей, pr. Mira 37, Sarov, Nizhny Novgorod oblast, 607188; Kashirskoe sh. 31, Moscow, 115409; ul. Dukhova 6, Sarov, Nizhny Novgorod oblast, 607186

I. Kitayev

Russian Federal Nuclear Center−All-Russian Research Institute of Experimental Physics; National Research Nuclear University MEPhI (Moscow Engineering Physics Institute); Sarov State Physics and Technical Institute

Email: dubinov-ae@yandex.ru
Ресей, pr. Mira 37, Sarov, Nizhny Novgorod oblast, 607188; Kashirskoe sh. 31, Moscow, 115409; ul. Dukhova 6, Sarov, Nizhny Novgorod oblast, 607186

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