dorsal/arxiv
View SchemaElectron correlation vs. stabilization: A two-electron model atom in an intense laser pulse
| Authors | D. Bauer, F. Ceccherini |
|---|---|
| Categories | |
| ArXiv ID | physics/9903051 |
| URL | https://arxiv.org/abs/physics/9903051 |
| DOI | 10.1103/PhysRevA.60.2301 |
Abstract
We study numerically stabilization against ionization of a fully correlated two-electron model atom in an intense laser pulse. We concentrate on two frequency regimes: very high frequency, where the photon energy exceeds both, the ionization potential of the outer {\em and} the inner electron, and an intermediate frequency where, from a ``single active electron''-point of view the outer electron is expected to stabilize but the inner one is not. Our results reveal that correlation reduces stabilization when compared to results from single active electron-calculations. However, despite this destabilizing effect of electron correlation we still observe a decreasing ionization probability within a certain intensity domain in the high-frequency case. We compare our results from the fully correlated simulations with those from simpler, approximate models. This is useful for future work on ``real'' more-than-one electron atoms, not yet accessible to numerical {\em ab initio} methods.
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"abstract": "We study numerically stabilization against ionization of a fully correlated\ntwo-electron model atom in an intense laser pulse. We concentrate on two\nfrequency regimes: very high frequency, where the photon energy exceeds both,\nthe ionization potential of the outer {\\em and} the inner electron, and an\nintermediate frequency where, from a ``single active electron\u0027\u0027-point of view\nthe outer electron is expected to stabilize but the inner one is not. Our\nresults reveal that correlation reduces stabilization when compared to results\nfrom single active electron-calculations. However, despite this destabilizing\neffect of electron correlation we still observe a decreasing ionization\nprobability within a certain intensity domain in the high-frequency case. We\ncompare our results from the fully correlated simulations with those from\nsimpler, approximate models. This is useful for future work on ``real\u0027\u0027\nmore-than-one electron atoms, not yet accessible to numerical {\\em ab initio}\nmethods.",
"arxiv_id": "physics/9903051",
"authors": [
"D. Bauer",
"F. Ceccherini"
],
"categories": [
"physics.atom-ph"
],
"doi": "10.1103/PhysRevA.60.2301",
"title": "Electron correlation vs. stabilization: A two-electron model atom in an intense laser pulse",
"url": "https://arxiv.org/abs/physics/9903051"
},
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