"A simple trilinear Hamiltonian is utilized for a description of the Raman effect. The method of invariant subspaces, which is suitable for numerical calculations in the Schr\u00F6dinger picture, is analyzed. As an example of the numerical calculation, the time dependence of an entanglement measure, the so-called negativity, is found for the initial few-photon states."@en . "283655" . . . "GB - Spojen\u00E9 kr\u00E1lovstv\u00ED Velk\u00E9 Brit\u00E1nie a Severn\u00EDho Irska" . . . "3"^^ . . . "15310" . . "[792697D95A69]" . "3"^^ . . . . "Journal of Physics A-Mathematical and Theoretical" . "Luk\u0161, Anton\u00EDn" . "RIV/61989592:15310/10:10215827!RIV11-MSM-15310___" . "Pe\u0159inov\u00E1, Vlasta" . . "1751-8113" . "RIV/61989592:15310/10:10215827" . . "process; Raman; entanglement; Quantum"@en . . "Quantum statistics and entanglement in a Raman process"@en . . "Quantum statistics and entanglement in a Raman process" . . "44" . "19"^^ . . "Quantum statistics and entanglement in a Raman process"@en . "P(1M06002), P(OC09026)" . . "A simple trilinear Hamiltonian is utilized for a description of the Raman effect. The method of invariant subspaces, which is suitable for numerical calculations in the Schr\u00F6dinger picture, is analyzed. As an example of the numerical calculation, the time dependence of an entanglement measure, the so-called negativity, is found for the initial few-photon states." . "3" . "K\u0159epelka, Jarom\u00EDr" . "Quantum statistics and entanglement in a Raman process" . . .