<> "The repository administrator has not yet configured an RDF license."^^ . <> . . "Relativistic features and time delay\r\nof laser-induced tunnel-ionization"^^ . "Tunnel-ionization is investigated in the framework of relativistic quantum mechanics.\r\nFor an arbitrary constant electromagnetic field a gauge invariant energy\r\noperator is introduced in order to identify the classically forbidden region for\r\ntunnel-ionization. Furthermore, relativistic features of tunnel-ionization are explored.\r\nA one-dimensional intuitive picture predicts that the ionized electron wave\r\npacket in the relativistic regime experiences a momentum shift along the laser’s\r\npropagation direction. This is shown to be consistent with the well-known strong\r\nfield approximation. Furthermore, spin dynamics in tunnel-ionization process\r\nis discussed in the standard as well as in the dressed strong field approximation.\r\nNext, the tunneling time delay is investigated for tunnel-ionization by extending\r\nthe definition of the Wigner time delay. Later, this concept is redefined in terms of\r\nthe phase of the fixed energy propagator. The developed formalism is applied to\r\nthe deep-tunneling and the near-threshold-tunneling regimes. It is shown that in\r\nthe latter case signatures of the tunneling time delay can be measurable at remote\r\ndistance. Finally, the path-dependent formulation of gauge theory is discussed. It\r\nis demonstrated that this equivalent formulation of gauge theory leads to a canonical\r\ngauge fixing, in which the Feynman path integral becomes more intuitive and\r\nthe calculation of the quasiclassical propagator is considerably simplified"^^ . "2014" . . . . . . . "Enderalp"^^ . "Yakaboylu"^^ . "Enderalp Yakaboylu"^^ . . . . . . "Relativistic features and time delay\r\nof laser-induced tunnel-ionization (PDF)"^^ . . . "diss_yakaboylu.pdf"^^ . . . "Relativistic features and time delay\r\nof laser-induced tunnel-ionization (Other)"^^ . . . . . . "indexcodes.txt"^^ . . . "Relativistic features and time delay\r\nof laser-induced tunnel-ionization (Other)"^^ . . . . . . "lightbox.jpg"^^ . . . "Relativistic features and time delay\r\nof laser-induced tunnel-ionization (Other)"^^ . . . . . . "preview.jpg"^^ . . . "Relativistic features and time delay\r\nof laser-induced tunnel-ionization (Other)"^^ . . . . . . "medium.jpg"^^ . . . "Relativistic features and time delay\r\nof laser-induced tunnel-ionization (Other)"^^ . . . . . . "small.jpg"^^ . . "HTML Summary of #16346 \n\nRelativistic features and time delay \nof laser-induced tunnel-ionization\n\n" . "text/html" . . . "500 Naturwissenschaften und Mathematik"@de . "500 Natural sciences and mathematics"@en . . . "530 Physik"@de . "530 Physics"@en . .