Challenges
Datasets
Workspaces
Papers
Discussions
Leaderboard
Log inSign up
Challenges
Datasets
Workspaces
Papers
Discussions
Leaderboard
Blog
Job Board
Q3AS

© 2026 Aqora Quantum S.A.S.

TermsPrivacyLegal Notice

Physics Letters A

Spontaneous decay of an unstable atomic state: New method for a unified nonrelativistic-relativistic complete treatment

JOSIP SEKE

Published Jul 1, 1998• 3 citations
Publisher
DOI
10.1016/s0375-9601(98)80286-7

Related papers

A novel complete treatment of the time-evolution of a spontaneously decaying atomic state in relativistic QED

JOSIP SEKE

Physica A Statistical Mechanics and its Applications•Apr 1, 1997•5 citations

Complete treatment of the time evolution of a spontaneously decaying atomic state without ignoring virtual-transition effects

JOSIP SEKE

Physica A Statistical Mechanics and its Applications•Jun 1, 1993•9 citations

Gauge-invariant treatment of the exponential decay of an unstable atomic state

JOSIP SEKE

Il Nuovo Cimento D•Jul 1, 1993•0 citations

Relativistic decay of atomic states. Energy approach

M. N. Driker, Л. Н. Иванов

Optics and Spectroscopy•Aug 1, 1980•0 citations

Spontaneous decay of an unstable atomic state in non-relativistic QED: a complete treatment including gauge invariance, renormalization and non-Markovian time behaviour

JOSIP SEKE

It is shown that the application of a self-consistent projection-operator method, developed recently by the author, makes possible a complete and gauge-invariant treatment of spontaneously decaying atomic state. All the shortcomings of the Weisskopf-Wigner gauge-dependent method (Markov approximation and the neglect of virtual transition, retardation and electron-spin effects) are removed. After deriving a gauge-invariant equation of motion for the decaying state, a new physical interaction picture (in which the unobservable interaction of the free electron with the vacuum radiation field is eliminated) is introduced. In this new interaction picture, apart from a natural solution of the renormalization problem, explicit finite analytic results for the whole non-Markovian Lyman- alpha spontaneous decay are derived. Furthermore, a quasi-Lorentzian expression for the radiative line shape containing the correct (complete) finite non-relativistic frequency shift, stemming from the Lamb shifts of both levels 1S and 2P, is calculated.

Journal of Physics A Mathematical and General•Jan 21, 1994•3 citations

NEW NON-MARKOVIAN TREATMENT OF THE SPONTANEOUS DECAY OF AN UNSTABLE ATOMIC STATE IN RELATIVISTIC QED

JOSIP SEKE

It is shown that the application of a self-consistent projection-operator method, developed recently by the author, makes a complete treatment of the spontaneously decaying atomic state in relativistic QED possible. In a new physical real-transition interaction picture (in which the unobservable interaction of the free electron with the vacuum radiation field is eliminated) explicit finite analytic results for the non-Markovian time evolution and the radiative line shape in the case of relativistic Lyman-α spontaneous emission are obtained.

Modern Physics Letters B•Aug 30, 1996•0 citations
It is shown that the application of a self-consistent projection-operator method, developed recently by the author, makes possible a complete and gauge-invariant treatment of spontaneously decaying atomic state. All the shortcomings of the Weisskopf-Wigner gauge-dependent method (Markov approximation and the neglect of virtual transition, retardation and electron-spin effects) are removed. After deriving a gauge-invariant equation of motion for the decaying state, a new physical interaction picture (in which the unobservable interaction of the free electron with the vacuum radiation field is eliminated) is introduced. In this new interaction picture, apart from a natural solution of the renormalization problem, explicit finite analytic results for the whole non-Markovian Lyman- alpha spontaneous decay are derived. Furthermore, a quasi-Lorentzian expression for the radiative line shape containing the correct (complete) finite non-relativistic frequency shift, stemming from the Lamb shifts of both levels 1S and 2P, is calculated.
It is shown that the application of a self-consistent projection-operator method, developed recently by the author, makes a complete treatment of the spontaneously decaying atomic state in relativistic QED possible. In a new physical real-transition interaction picture (in which the unobservable interaction of the free electron with the vacuum radiation field is eliminated) explicit finite analytic results for the non-Markovian time evolution and the radiative line shape in the case of relativistic Lyman-α spontaneous emission are obtained.