Local group velocity and path-delay: semi-classical propagators for the time evolution of Wigner functions in deep tunneling and in dispersive media

Kallush S; Tannenbaum E; Segev B

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Local group velocity and path-delay: semi-classical propagators for the time evolution of Wigner functions in deep tunneling and in dispersive media

机译：局部群速度和路径延迟：半经典传播子，用于深隧道和分散介质中维格纳函数的时间演化

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Controlled semi-classical approximations for the evolution kernels (the propagators) of the Wigner function in the cases of tunneling and propagation in dispersive media are derived. The semi-classical propagators follow well defined trajectories determined by the local group velocity and a path delay which is a multi-dimensional generalization of Wigner phase-delay time. A comparison between exact and semi-classical time evolution gives good agreement for propagation in dispersive media if the harmonic term in the dispersion relation is the dominant term and excellent agreement for deep tunneling. (C) 2004 Elsevier B.V. All rights reserved.

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《Chemical Physics Letters》 |2004年第6期|共7页
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Kallush S; Tannenbaum E; Segev B;
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PHASE-SPACE DISTRIBUTION; FRANCK-CONDON FACTORS; MIXED QUANTUM STATES; HYDRODYNAMIC EQUATIONS; WAVE-PACKETS; REPRESENTATION; MECHANICS; DYNAMICS; BARRIER;

机译：相空间分布;弗兰克-康登因子;混合量子态;水力方程;波包;表示;力学;动力学;屏障;

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2. Wigner time delay for tunneling ionization via the electron propagator [J] . Enderalp Yakaboylu, Michael Klaiber, Karen Z. Hatsagortsyan Physical Review, A. Atomic, molecular, and optical physics . 2014,第1aPta1期

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Local group velocity and path-delay: semi-classical propagators for the time evolution of Wigner functions in deep tunneling and in dispersive media

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