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Combined two-loop self-energy corrections at finite and zero temperatures. / Залялютдинов, Тимур Амирович; Соловьев, Дмитрий Анатольевич.

в: Physical Review A - Atomic, Molecular, and Optical Physics, Том 108, № 4, 042801, 06.10.2023.

Результаты исследований: Научные публикации в периодических изданияхстатьяРецензирование

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@article{f57f9ab655c948e78bdef4534e518f23,
title = "Combined two-loop self-energy corrections at finite and zero temperatures",
abstract = "In this paper we investigate higher-order corrections to the energies of bound states in hydrogen subjected to the external blackbody radiation field. In particular, within the framework of thermal quantum electrodynamics and the S-matrix approach we analyze the combined type of two-loop self-energy corrections, including one zero-vacuum and one loop at finite temperature. By utilizing the method of dimensional regularization, we derive closed analytical expressions for the energy shifts of atomic levels. Our numerical calculations demonstrate that even at room temperature these corrections can be significant for excited states, reaching the magnitude of the thermally induced Stark contribution.",
keywords = "higher-order corrections, external blackbody radiation field, thermal quantum electrodynamics, two-loop self-energy correction",
author = "Залялютдинов, {Тимур Амирович} and Соловьев, {Дмитрий Анатольевич}",
year = "2023",
month = oct,
day = "6",
doi = "https://link.aps.org/doi/10.1103/PhysRevA.108.042801",
language = "English",
volume = "108",
journal = "Physical Review A - Atomic, Molecular, and Optical Physics",
issn = "1050-2947",
publisher = "American Physical Society",
number = "4",

}

RIS

TY - JOUR

T1 - Combined two-loop self-energy corrections at finite and zero temperatures

AU - Залялютдинов, Тимур Амирович

AU - Соловьев, Дмитрий Анатольевич

PY - 2023/10/6

Y1 - 2023/10/6

N2 - In this paper we investigate higher-order corrections to the energies of bound states in hydrogen subjected to the external blackbody radiation field. In particular, within the framework of thermal quantum electrodynamics and the S-matrix approach we analyze the combined type of two-loop self-energy corrections, including one zero-vacuum and one loop at finite temperature. By utilizing the method of dimensional regularization, we derive closed analytical expressions for the energy shifts of atomic levels. Our numerical calculations demonstrate that even at room temperature these corrections can be significant for excited states, reaching the magnitude of the thermally induced Stark contribution.

AB - In this paper we investigate higher-order corrections to the energies of bound states in hydrogen subjected to the external blackbody radiation field. In particular, within the framework of thermal quantum electrodynamics and the S-matrix approach we analyze the combined type of two-loop self-energy corrections, including one zero-vacuum and one loop at finite temperature. By utilizing the method of dimensional regularization, we derive closed analytical expressions for the energy shifts of atomic levels. Our numerical calculations demonstrate that even at room temperature these corrections can be significant for excited states, reaching the magnitude of the thermally induced Stark contribution.

KW - higher-order corrections

KW - external blackbody radiation field

KW - thermal quantum electrodynamics

KW - two-loop self-energy correction

UR - https://www.mendeley.com/catalogue/46131f58-e74e-3815-85a4-ff4a44781ceb/

U2 - https://link.aps.org/doi/10.1103/PhysRevA.108.042801

DO - https://link.aps.org/doi/10.1103/PhysRevA.108.042801

M3 - Article

VL - 108

JO - Physical Review A - Atomic, Molecular, and Optical Physics

JF - Physical Review A - Atomic, Molecular, and Optical Physics

SN - 1050-2947

IS - 4

M1 - 042801

ER -

ID: 115008924