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On equation of state for the ”thermal” part of the spin current: Pauli principle contribution in the spin wave spectrum in cold fermion systemстатья
Информация о цитировании статьи получена из
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Статья опубликована в журнале из списка Web of Science и/или Scopus
Дата последнего поиска статьи во внешних источниках: 18 сентября 2019 г.
- Авторы: Andreev P.A., Kuz’menkov L.S.
- Журнал: Progress of Theoretical and Experimental Physics (PTEP)
- Том: 2019
- Номер: 5
- Год издания: 2019
- Первая страница: 053J01
- DOI: 10.1093/ptep/ptz029
- Аннотация: Spin evolution opened a large field in quantum plasma research. The spin waves in plasmas were considered among new phenomena in spin-1/2 quantum plasmas. The spin density evolution equation found by means of many-particle quantum hydrodynamics shows the existence of a “thermal” part of the spin current which is an analog of the thermal pressure, or the Fermi pressure for a degenerate electron gas, existing in the Euler equation. However, this term has been dropped, since no equation of state for the thermal part of the spin current (TPSC), like the one we have for the pressure, has been found. In this paper we derive the equation of state for the TPSC and apply it for the study of the spectrum of collective excitations in spin-1/2 quantum plasmas. We focus our research on the spectrum of spin waves, since this spectrum is affected by the TPSC. We consider two kinds of plasmas: electron–ion plasma with motionless ions and degenerate electrons, and degenerate electron–positron plasmas. We also present the nonlinear Pauli equation with the spinor pressure term containing the described effects. The thermal part of the spin current flux existing in the spin current evolution equation is also derived. We also consider the contribution of the TPSC in the grand generalized vorticity evolution.
- Добавил в систему: Андреев Павел Александрович
Прикрепленные файлы
| № | Имя | Описание | Имя файла | Размер | Добавлен |
|---|---|---|---|---|---|
| 1. | Полный текст | статья | ptz029.pdf | 804,8 КБ | 16 сентября 2021 [Pavel_Andreev] |