✦ LIBER ✦

Gaussian wavepacket dynamics and the Landau—Zener model for non-adiabatic transitions

✍ Scribed by Niels Engholm Henriksen

Publisher: Elsevier Science
Year: 1992
Tongue: English
Weight: 418 KB
Volume: 197
Category: Article
ISSN: 0009-2614
DOI: 10.1016/0009-2614(92)85825-u

No coin nor oath required. For personal study only.

✦ Synopsis

The Landau-Zener model for transitions between two linear diabatic potentials is examined. We derive, in the weak-coupling limit, an expression for the transition probability where the classical trajectory and the constant velocity approximations are abandoned and replaced by quantum dynamics described by a Gaussian wavepacket. A remarkable agreement with the results from the simple Landau-Zener formula is observed.

📜 SIMILAR VOLUMES

Dynamic approach to self-organization or

Dynamic approach to self-organization or a phase transition. Model for a non-equilibrium phase transition in phosphatidylserine membranes by the binding of Ca2+ and Cu2+

✍ Kotaro Shirane; Takayuki Tokimoto 📂 Article 📅 1986 🏛 Elsevier Science 🌐 English ⚖ 323 KB

A self-organized chemical system is described by a set of rate equations for a primary and a partial system. The partial system acts as an internal driving force to regulate the primary system. Thermal equilibrium of the primary system is broken by coupling with the partial system and there is a cha