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dc.contributor.authorKjellsson Lindblom, Tor
dc.contributor.authorFørre, Morten
dc.contributor.authorLindroth, Eva
dc.contributor.authorSelstø, Sølve
dc.date.accessioned2019-01-18T12:30:51Z
dc.date.accessioned2019-01-21T13:33:05Z
dc.date.available2019-01-18T12:30:51Z
dc.date.available2019-01-21T13:33:05Z
dc.date.issued2018
dc.identifier.citationKjellsson Lindblom, Førre M, Lindroth E, Selstø S. Semirelativistic Schrödinger Equation for Relativistic Laser-Matter Interactions. Physical Review Letters. 2018;121(253202)en
dc.identifier.issn0031-9007
dc.identifier.urihttps://hdl.handle.net/10642/6533
dc.description.abstractA semirelativistic formulation of light-matter interaction is derived using the so called propagation gauge and the relativistic mass shift. We show that relativistic effects induced by a superintense laser field can, to a surprisingly large extent, be accounted for by the Schrödinger equation, provided that we replace the rest mass in the propagation gauge Hamiltonian by the corresponding time-dependent field-dressed mass. The validity of the semirelativistic approach is tested numerically on a hydrogen atom exposed to an intense extreme ultraviolet laser pulse strong enough to accelerate the electron towards relativistic velocities. It is found that while the results obtained from the ordinary (nonrelativistic) Schrödinger equation generally differ from those of the Dirac equation, demonstrating that relativistic effects are significant, the semirelativistic formulation provides results in quantitative agreement with a fully relativistic treatment.en
dc.description.sponsorshipSimulations have been performed on resources provided byUNINETTSigma2-theNationalInfrastructureforHigh Performance Computing and Data storage in Norway (Project No. NN9417K) and the Swedish National Infrastructure for Computing (SNIC) at KEBNEKAISE. Financial support by the Swedish Research Council (Grant No. 2016-03789) is also gratefully acknowledged.en
dc.language.isoenen
dc.publisherAmerican Physical Societyen
dc.relation.ispartofseriesPhysical Review Letters;Vol. 121, Iss. 25 — 21 December 2018
dc.rightsAPS authors are free to post the final published version of their articles on their laboratory and institutional web sites.en
dc.subjectAtomic processesen
dc.subjectElectronic excitationsen
dc.subjectLight-matter interactionsen
dc.subjectMultiphoton tunneling ionizationsen
dc.subjectRelativistic, quantum, electrodynamic effectsen
dc.subjectStrong electromagnetic field effectsen
dc.titleSemirelativistic Schrödinger Equation for Relativistic Laser-Matter Interactionsen
dc.typeJournal articleen
dc.typePeer revieweden
dc.date.updated2019-01-18T12:30:51Z
dc.description.versionpublishedVersionen
dc.identifier.doihttp://dx.doi.org/10.1103/PhysRevLett.121.253202
dc.identifier.cristinID1646830
dc.relation.projectIDNotur/NorStore: NN9417K
dc.source.issn0031-9007
dc.source.issn1079-7114
dc.relation.journalPhysical Review Letters


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