Self-energy of an electron bound in a Coulomb field

Kód výsledku v IS VaVaI

<a href="https://www.isvavai.cz/riv?ss=detail&h=RIV%2F00216208%3A11320%2F13%3A10173467" target="_blank" >RIV/00216208:11320/13:10173467 - isvavai.cz</a>

Výsledek na webu

<a href="http://dx.doi.org/10.1103/PhysRevA.88.032501" target="_blank" >http://dx.doi.org/10.1103/PhysRevA.88.032501</a>

DOI - Digital Object Identifier

<a href="http://dx.doi.org/10.1103/PhysRevA.88.032501" target="_blank" >10.1103/PhysRevA.88.032501</a>

Jazyk výsledku

angličtina

Název v původním jazyce

Self-energy of an electron bound in a Coulomb field

Popis výsledku v původním jazyce

The evaluation method of the one-loop self-energy of the electron bound in a Coulomb field is described. The method combines the relativistic multipole expansion with the free-particle approximation in the virtual states without breaking any integrationsof pieces. The relativistic multipole expansion is based on a single assumption: except for the part of the time component of the electron four-momentum corresponding to the electron rest mass, the exchange of four-momentum between the virtual electronand photon can be treated perturbatively. This assumption holds very well, except for the electron virtual states with very high three-momentum. It is shown that for such virtual states one can always rearrange the pertinent expression in a way that allows the electron to be treated as free. The fraction of the free-particle approximation contained in the relativistic multipole expansion carried out to a given order is precisely determined. Furthermore, it is pointed out that in the virt

Název v anglickém jazyce

Self-energy of an electron bound in a Coulomb field

Popis výsledku anglicky

The evaluation method of the one-loop self-energy of the electron bound in a Coulomb field is described. The method combines the relativistic multipole expansion with the free-particle approximation in the virtual states without breaking any integrationsof pieces. The relativistic multipole expansion is based on a single assumption: except for the part of the time component of the electron four-momentum corresponding to the electron rest mass, the exchange of four-momentum between the virtual electronand photon can be treated perturbatively. This assumption holds very well, except for the electron virtual states with very high three-momentum. It is shown that for such virtual states one can always rearrange the pertinent expression in a way that allows the electron to be treated as free. The fraction of the free-particle approximation contained in the relativistic multipole expansion carried out to a given order is precisely determined. Furthermore, it is pointed out that in the virt

Druh

J_x - Nezařazeno - Článek v odborném periodiku (Jimp, Jsc a Jost)

CEP obor

BE - Teoretická fyzika

OECD FORD obor

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Projekt

—

Návaznosti

S - Specificky vyzkum na vysokych skolach

Rok uplatnění

2013

Kód důvěrnosti údajů

S - Úplné a pravdivé údaje o projektu nepodléhají ochraně podle zvláštních právních předpisů

Název periodika

Physical Review A - Atomic Molecular and Optical Physics

ISSN

1050-2947

e-ISSN

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Svazek periodika

88

Číslo periodika v rámci svazku

3

Stát vydavatele periodika

US - Spojené státy americké

Počet stran výsledku

24

Strana od-do

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Kód UT WoS článku

000323889700003

EID výsledku v databázi Scopus

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