Distribution of absorbed photons in the tunneling ionization process

Abstract We describe a procedure that allows us to solve the three-dimensional time-dependent Schrödinger equation for an atom interacting with a quantized one-mode electromagnetic field. Atom-field interaction is treated in an ab initio way prescribed by quantum electrodynamics. We use the procedur...

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Autores principales:	I. A. Ivanov, Kyung Taec Kim
Formato:	article
Lenguaje:	EN
Publicado:	Nature Portfolio 2021
Materias:	Medicine R Science Q
Acceso en línea:	https://doaj.org/article/73d41aeec77b4cfa81bd4636e8fada2d
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spelling	oai:doaj.org-article:73d41aeec77b4cfa81bd4636e8fada2d2021-12-02T14:21:57ZDistribution of absorbed photons in the tunneling ionization process10.1038/s41598-021-83453-02045-2322https://doaj.org/article/73d41aeec77b4cfa81bd4636e8fada2d2021-02-01T00:00:00Zhttps://doi.org/10.1038/s41598-021-83453-0https://doaj.org/toc/2045-2322Abstract We describe a procedure that allows us to solve the three-dimensional time-dependent Schrödinger equation for an atom interacting with a quantized one-mode electromagnetic field. Atom-field interaction is treated in an ab initio way prescribed by quantum electrodynamics. We use the procedure to calculate probability distributions of absorbed photons in the regime of tunneling ionization. We analyze evolution of the reduced photon density matrix describing the state of the field. We show that non-diagonal density matrix elements decay quickly, as a result of the decoherence process. A stochastic model, viewing ionization as a Markovian birth-death process, reproduces the main features of the calculated photon distributions.I. A. IvanovKyung Taec KimNature PortfolioarticleMedicineRScienceQENScientific Reports, Vol 11, Iss 1, Pp 1-14 (2021)
institution	DOAJ
collection	DOAJ
language	EN
topic	Medicine R Science Q
spellingShingle	Medicine R Science Q I. A. Ivanov Kyung Taec Kim Distribution of absorbed photons in the tunneling ionization process
description	Abstract We describe a procedure that allows us to solve the three-dimensional time-dependent Schrödinger equation for an atom interacting with a quantized one-mode electromagnetic field. Atom-field interaction is treated in an ab initio way prescribed by quantum electrodynamics. We use the procedure to calculate probability distributions of absorbed photons in the regime of tunneling ionization. We analyze evolution of the reduced photon density matrix describing the state of the field. We show that non-diagonal density matrix elements decay quickly, as a result of the decoherence process. A stochastic model, viewing ionization as a Markovian birth-death process, reproduces the main features of the calculated photon distributions.
format	article
author	I. A. Ivanov Kyung Taec Kim
author_facet	I. A. Ivanov Kyung Taec Kim
author_sort	I. A. Ivanov
title	Distribution of absorbed photons in the tunneling ionization process
title_short	Distribution of absorbed photons in the tunneling ionization process
title_full	Distribution of absorbed photons in the tunneling ionization process
title_fullStr	Distribution of absorbed photons in the tunneling ionization process
title_full_unstemmed	Distribution of absorbed photons in the tunneling ionization process
title_sort	distribution of absorbed photons in the tunneling ionization process
publisher	Nature Portfolio
publishDate	2021
url	https://doaj.org/article/73d41aeec77b4cfa81bd4636e8fada2d
work_keys_str_mv	AT iaivanov distributionofabsorbedphotonsinthetunnelingionizationprocess AT kyungtaeckim distributionofabsorbedphotonsinthetunnelingionizationprocess
_version_	1718391494801358848

Distribution of absorbed photons in the tunneling ionization process

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