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20132025
most citedTime-dependent complete-active-space self-consistent-field method for atoms: Application to high-harmonic generation

86 citations · 268 across the 9 of their papers we have counts for

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physics.atom-ph2025

Reduced density matrix description of high-harmonic generation in multi-electron atoms: exploring sub-cycle correlation effects

Katharina Buczolich, Takeshi Sato, Kenichi L. Ishikawa +3

High-harmonic generation (HHG) is one of the fundamental processes at the heart of attosecond physics. Traditionally viewed as an effective single-particle effect, recent advances…

physics.atom-ph2019★ 13 cited

Electron correlations in the antiproton energy loss distribution in He

S. Borbély, X. -M. Tong, S. Nagele +6

We present ab-initio calculations of the electronic differential energy transfer (DET) cross-sections for antiprotons with energies between keV and MeV interacting with heliu…

physics.atom-ph2016★ 43 cited

Accurate high-harmonic spectra from time-dependent two-particle reduced density matrix theory

Fabian Lackner, Iva Březinová, Takeshi Sato +2

The accurate description of the non-linear response of many-electron systems to strong-laser fields remains a major challenge. Methods that bypass the unfavorable exponential scali…

physics.atom-ph2016★ 86 cited

Time-dependent complete-active-space self-consistent-field method for atoms: Application to high-harmonic generation

Takeshi Sato, Kenichi L. Ishikawa, Iva Brezinova +3

We present the numerical implementation of the time-dependent complete-active-space self-consistent-field (TD-CASSCF) method [Phys. Rev. A, 88, 023402 (2013)] for atoms driven by a…

physics.atom-ph2014★ 55 cited

Propagating two-particle reduced density matrices without wavefunctions

Fabian Lackner, Iva Brezinova, Takeshi Sato +2

Describing time-dependent many-body systems where correlation effects play an important role remains a major theoretical challenge. In this paper we develop a time-dependent many-b…