Description of a dissipative quantum spin dynamics with a Landau-Lifshitz/Gilbert like damping and complete derivation of the classical Landau-Lifshitz equation
Description of a dissipative quantum spin dynamics with a Landau-Lifshitz/Gilbert like damping and complete derivation of the classical Landau-Lifshitz equation
复制标题
具有类 Landau-Lifshitz/Gilbert 阻尼的耗散量子自旋动力学的描述以及经典 Landau-Lifshitz 方程的完整推导
DOI：
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发表时间：
2015
期刊：
影响因子：
--
通讯作者：
R. Wieser
中科院分区：
文献类型：
--
作者：
R. Wieser
摘要
经典的朗道-利夫希茨方程源自量子力学。开始
点是非厄米哈密顿算子取能量的假设
耗散考虑在内。相应的量子力学自旋动力学
描述了与时间相关的薛定谔、刘维尔和海森堡方程
经典和量子力学自旋动力学之间的异同
已经讨论过。此外，与时间相关的薛定谔方程对应于
经典的 Landau-Lifshitz-Gilbert 方程以及将温度纳入其中的两种方法
提出了量子力学自旋动力学。
Abstract
The classical Landau-Lifshitz equation has been derived from quantum mechanics. Starting
point is the assumption of a non-Hermitian Hamilton operator to take the energy
dissipation into account. The corresponding quantum mechanical spin dynamics along with
the time dependent Schrödinger, Liouville and Heisenberg equation has been described and
the similarities and differences between classical and quantum mechanical spin dynamics
have been discussed. Furthermore, a time dependent Schrödinger equation corresponding to
the classical Landau-Lifshitz-Gilbert equation and two ways to include temperature into
the quantum mechanical spin dynamics have been proposed.
影响因子：
8.6
作者：
R. Wieser;E. Y. Vedmedenko;R. Wiesendanger
通讯作者：
R. Wiesendanger
影响因子：
8.6
作者：
Menzel, Matthias;Mokrousov, Yuriy;Wiesendanger, Roland
通讯作者：
Wiesendanger, Roland