Stochastic Theory for Nonadiabatic Level Crossing with Fluctuating Off-Diagonal Coupling

スポンサーリンク

概要

• 論文の詳細を見る

• A simple stochastic model is presented describing the nonadiabatic transi-Lions in the level crossing with fluctuating off-diagonal coupling, in which thefluctuation is assumed to obey the Markoffian Gaussian process. The probabilityP that the transition occurs from one diabatic state to another is calculatedexactly in the two limiting situations: In the slow fluctuation limit, P is given byP=::: 1 - {1 -F- (4xJ'/1jv?))-"', where .7is the averaged amplitude of the off-diagonalterm and v is the velocity of the change of the energy difference between the cross-ing levels. In thc rapid fluctuation limit, P is given by P= {1 -exp ( -4xJ"/A?t>?)}/2. The intermediate case is studied numerically by the Wiener-Hermiteexpansion method. Generally, P approaches not 1 but 1/2 in the limit of slowpassage, namely, v +O.

• 社団法人日本物理学会の論文
• 1985-05-15

著者

• Kayanuma Yosuke

  Department of Physics, Faculty of Science, Tohoku University

• Kayanuma Yosuke

  Department Of Physics Faculty Of Science Tohoku University

• Kayanuma Yosuke

  Department of Mathematical Sciences, Graduate School of Engineering, Osaka Prefecture University, Sakai 599-8531

関連論文

• Theory of Core-Exciton Effect for Resonant Auger Electron Spectrum in La-Compounds
• Theory of Post-Collision-Interaction Effect in Resonant XES of La Compounds
• Photoionization Spectrum of Deeply Trapped Electrons in Semiconductors-Results in a Simple One-Dimensional Model
• Stochastic Theory for Nonadiabatic Level Crossing with Fluctuating Off-Diagonal Coupling
• Resonant Scattering of Acoustic Phonons by Randomly Distributed Two-Level Systems
• Tunneling States of Impurities in Off-Center Potentials with Octahedral Symmetry
• Theory of the Tunneling Excitation of OH Ions in the NaCl Crystal
• Lattice Relaxation of Outermost Core Holes in Auger-Free Luminescence of CsCl
• Resonant Tunneling of a Wannier Exciton through a Single Heterobarrier
• Nonradiative Transitions in Deep Impurities in Semiconductors-Study in a Semiclassical Model
• Nonadiabatic Transitions in Level Crossing with Energy Fluctuation.II.Numerical Investigations
• Nonadiabatic Transition at Level-Crossing in Dissipative Media
• Magnetic Impurities in Semiconductors
• Nonadiabatic Transitions in Level Crossing with Energy Fluctuation.I.Analytical Investigations
• Theory of X-Ray Emission Spectra in La and Ce Compounds
• Theory of the Resonant 5p→3d X-Ray Emission Spectra in CeO_2
• Theory of 4f→3d X-Ray Emission Spectra in La and Ce Compounds
• Lattice Relaxation of Outermost Core Holes in Auger-Free Luminescence of CsCl

もっと見る 閉じる

スポンサーリンク