Theoretical description of field-assisted postcollision interaction in Auger decay of atoms

Bauch, S.; Bönitz, M.

doi:10.1103/physreva.85.053416

Cited by 24 publications

(36 citation statements)

References 45 publications

(120 reference statements)

Supporting

Mentioning

Contrasting

Order By: Relevance

“…a time-dependent shift of the Auger electron kinetic energy. These measurements (supported by further theoretical work [40]) accordingly confirm the validity of the PCI-streaking approach.…”

Section: Time-resolving Synchrotron Measurements Employing Post Collisupporting

confidence: 76%

“…In this approach the atomic-scale timing information is typically mapped to a kinetic energy which can be measured. During recent years it was realized, that a corresponding mapping of decay time to photoelectron energy naturally occurs, whenever a decay produces a secondary electron, which is significantly faster than the photoelectron [39][40][41]. The influence of the Coulomb field of the second, fast electron on the previously emitted slow electron is termed "post collision interaction" (PCI) [42].…”

Section: Time-resolving Synchrotron Measurements Employing Post Collimentioning

confidence: 99%

See 1 more Smart Citation

Time-resolved studies of interatomic Coulombic decay

Frühling

Trinter

Karimi

et al. 2015

Journal of Electron Spectroscopy and Related Phenomena

View full text Add to dashboard Cite

a b s t r a c tInteratomic Coulombic decay (ICD) is a decay mechanism occurring in loosely bound matter, e.g. in systems bound by van der Waals-forces or hydrogen bonds. In many such cases the decay time is similar to the time scale of nuclear motion during the decay. As the efficiency of ICD strongly depends on the internuclear distance of the atoms or molecules involved in the decay, an overall non-trivial temporal decay behavior arises. The progress of examining the time-domain aspects of interatomic Coulombic decay is summarized in this short topical review with a special emphasis on experiments that are now feasible due to the developments of free-electron lasers.

show abstract

Section: Time-resolving Synchrotron Measurements Employing Post Collisupporting

confidence: 76%

Section: Time-resolving Synchrotron Measurements Employing Post Collimentioning

confidence: 99%

Time-resolved studies of interatomic Coulombic decay

Frühling

Trinter

Karimi

et al. 2015

Journal of Electron Spectroscopy and Related Phenomena

View full text Add to dashboard Cite

show abstract

“…times t p and A utilizing Monte Carlo algorithms were performed that take all e-e and e-i interactions fully into account. This semiclassical approach was found to agree well with solutions of the time-dependent Schrödinger equation with both laser fields and PCI included [27] that were carried out as described in Ref. [28].…”

mentioning

confidence: 78%

Evidence for Chirped Auger-Electron Emission

et al. 2012

Self Cite

View full text Add to dashboard Cite

Auger decay carries valuable information about the electronic structure and dynamics of atoms, molecules, and solids. Here we furnish evidence that under certain conditions Auger electrons are subject to an energetic chirp. The effect is disclosed in time-resolved streaking experiments on the Xe NOO and Kr MNN Auger decay using extreme-ultraviolet pulses from the free-electron laser in Hamburg as well as from a high-order harmonic laser source. The origin of this effect is found to be an exchange of energy between the Auger electron and an earlier emitted correlated photoelectron. The observed time-dependent spectral modulations are understood within an analytical model and confirmed by extensive computer simulations.

show abstract

“…Tracing electron motion and correlation on their natural time scales has become possible within the last decade due to enormous experimental progress in light-pulse technology and detection methods [1][2][3][4]. These experimental advancements and associated new possibilities for elucidating quantum motion on an ultrafast timescale challenge theory.…”

Section: Introductionmentioning

confidence: 99%

Time-dependent generalized-active-space configuration-interaction approach to photoionization dynamics of atoms and molecules

2014

Self Cite

View full text Add to dashboard Cite

We present a wave-function based method to solve the time-dependent many-electron Schrödinger equation (TDSE) with special emphasis on strong-field ionization phenomena. The theory builds on the configuration-interaction (CI) approach supplemented by the generalized-active-space (GAS) concept from quantum chemistry. The latter allows for a controllable reduction in the number of configurations in the CI expansion by imposing restrictions on the active orbital space. The method is similar to the recently formulated time-dependent restricted-active-space (TD-RAS) CI method [D. Hochstuhl, and M. Bonitz, Phys. Rev. A 86, 053424 (2012)]. We present details of our implementation and address convergence properties with respect to the active spaces and the associated account of electron correlation in both ground state and excitation scenarios. We apply the TD-GASCI theory to strong-field ionization of polar diatomic molecules and illustrate how the method allows us to uncover a strong correlation-induced shift of the preferred direction of emission of photoelectrons.

show abstract

Theoretical description of field-assisted postcollision interaction in Auger decay of atoms

Cited by 24 publications

References 45 publications

Time-resolved studies of interatomic Coulombic decay

Time-resolved studies of interatomic Coulombic decay

Evidence for Chirped Auger-Electron Emission

Time-dependent generalized-active-space configuration-interaction approach to photoionization dynamics of atoms and molecules

Contact Info

Product

Resources

About