danДоклады Национальной академии наук БеларусиDoklady of the National Academy of Sciences of Belarus1561-83232524-2431The Republican Unitary Enterprise Publishing House "Belaruskaya Navuka"10.29235/1561-8323-2022-66-5-495-500dan-1088Research ArticleФИЗИКАPHYSICSВлияние плотности фотонных состояний на сдвиг Лэмба в плазмеPhoton density of states effect on Lamb shift in plasmasНовицкийД. В.NovitskyD. V.

Новицкий Денис Викторович – канд. физ.-мат. наук,заведующий центром.

пр. Независимости, 68, 220072, Минск, Республика Беларусь

Novitsky Denis V. – Ph. D. (Physics and Mathematics), Head of the Centre

68, Nezavisimosti Ave., 220072, Minsk

d.novitsky@ifanbel.bas-net.byГапоненкоС. В.GaponenkoS. V.

Гапоненко Сергей Васильевич – академик, д-р физ.- мат. наук, гл. науч. сотрудник

пр. Независимости, 68, 220072, Минск 

Gaponenko Sergey V. – Academician, D. Sc. (Physics and Mathematics), Chief Researcher

68, Nezavisimosti Ave., 220072, Minsk

s.gaponenko@ifanbel.bas-net.byИнститут физики имени Б. И. Степанова Национальной академии наук БеларусиB. I. Stepanov Institute of Physics of the National Academy of Sciences of BelarusИнститут физики имени Б. И. Степанова Национальной академии наук БеларусиB. I. Stepanov Institute of Physics of the National Academy of Sciences of Belarus202202112022665495500Copyright © Новицкий Д.В., Гапоненко С.В., 20222022Новицкий Д.В., Гапоненко С.В.Novitsky D.V., Gaponenko S.V.Данная работа распространяется под лицензией Creative Commons Attribution 4.0.This work is licensed under a Creative Commons Attribution 4.0 License.https://doklady.belnauka.by/jour/article/view/1088

Исследовано возможное влияние пониженной плотности фотонных состояний в плазме на сдвиг Лэмба и установлено, что вследствие значительного вклада в сдвиг Лэмба высокоэнергетических виртуальных фотонов даже при концентрациях электронов порядка 1022 см–3 относительное изменение сдвига Лэмба в плазме в сравнении с вакуумом не превышает 1 %. Такое поведение сдвига Лэмба в плазме обусловлено асимптотическим приближением свойств плазмы к свойствам вакуума при неограниченном увеличении частоты фотонов.

A possible effect of the low photon density of states in plasma on the Lamb shift is analysed. It is found that because of a significant contribution of high-energy virtual photons to the Lamb shift, its modification in plasma does not exceed 1 % with respect to vacuum even at electron concentrations as high as 1022 cm–3. This behavior results from an asymptotic tendency of plasma properties to vacuum ones at an unlimited frequency growth.

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The authors declare that there are no conflicts of interest present.