상길! 홈페이지 상길이를 만나요| ZanNavi's space
  현재위치 ► ZanNavi's space : Research : non-Hermitian  

----------------------------------------------------------------------
2003-2010 @KU

Non-Hermitian Floquet formalism

The generalized Floquet formalisms have been developed and applied to a wide range of laser-induced chemical and physical processes [Phys. Rep. 390, 1 (2004)]. The non-Hermitian Floquet formalism and complex quasienergy methods provide accurate non-perturbative treatment of bound–continuum processes of strong-field multiphoton phenomena. I have extended the time-independent non-Hermitian Floquet formalism for high-precision calculation of the multiphoton ionization (MPI) rates of H2+ in intense laser fields, employing the generalized pseudospectral method and the complex scaling method [1]. I also have extended the time-dependent non-Hermitian Floquet approach of time-dependent density functional theory (TDDFT) to investigate the one-photon ionization cross sections and the MPI rates of rare gases, where the computational procedure includes the generalized pseudospectral method, the exterior complex scaling method, and non-Hermitian time propagation of the time-evolution operator [2].

Complex quasienergies of the H atom. The bound states are invariant while the continuum states are rotated after the complex scaling method is employed.

Related Poster Presentations
  1. Sang-Kil Son and Shih-I Chu, Precision calculation of intense-laser-field multiphoton ionization (MPI) rates of H2+ at critical internuclear distances in The 37th Meeting of the Division of Atomic, Molecular and Optical Physics (American Physics Society, Knoxville, Tennessee, May 16-20, 2006) [poster] [bib][BibTeX][slide][slide: 693kb][abstract][abstract][link][link]
  2. Sang-Kil Son, Multiphoton ionization of rare gases: time-dependent non-Hermitian Floquet approach of time-dependent density functional theory, unpublished [bib][BibTeX]
----------------------------------------------------------------------

이 페이지의 최종수정일: 2017.9.12
Copyright (C) 2000-2025 손상길
저작권에 대한 본 사항이 명시되는 한, 어떠한 정보 매체에 의한 본문의 전재나 발췌도 무상으로 허용됩니다. [copyleft]