Dzyaloshinsky-Moriya相互作用下量子自旋二聚体的自旋动力学研究

IF 3 3区物理与天体物理 Q2 PHYSICS, MULTIDISCIPLINARY

Annals of Physics Pub Date : 2025-04-30 DOI:10.1016/j.aop.2025.170031

R. Wieser , R. Sánchez Galán

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引用次数: 0

摘要

我们研究了一个量子自旋螺旋二聚体在磁场作用下的基态构型和自旋动力学。通过绝热改变磁场，可以将非磁性基态改变为经典螺旋态，并周期性振荡到其反转的经典螺旋态构型。这种振荡可以在任何时候停止，从而有可能操纵量子态和自旋二聚体的磁构型。值得注意的是，这个想法并不局限于自旋二聚体，也可以扩展到具有偶数个自旋的量子自旋链。

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Investigation of the spin dynamics of quantum spin dimers with Dzyaloshinsky–Moriya interaction

We investigate the ground state configuration and spin dynamics of a quantum spin spiral dimer when a magnetic field is applied to one of its constituent spins. By adiabatic changing the magnetic field, it is possible to change the non-magnetic ground state to a classical spiral state, which oscillates periodically to its inverted classical spiral state configuration. This oscillation can be halted at any time, leading to the possibility of manipulating the quantum state and the magnetic configuration of the spin dimer. Notably, this idea is not limited to spin dimers and can also be extended to quantum spin chains with an even number of spins.

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来源期刊

Annals of Physics 物理-物理：综合

CiteScore

5.30

自引率

3.30%

发文量

211

审稿时长

47 days

期刊介绍： Annals of Physics presents original work in all areas of basic theoretic physics research. Ideas are developed and fully explored, and thorough treatment is given to first principles and ultimate applications. Annals of Physics emphasizes clarity and intelligibility in the articles it publishes, thus making them as accessible as possible. Readers familiar with recent developments in the field are provided with sufficient detail and background to follow the arguments and understand their significance. The Editors of the journal cover all fields of theoretical physics. Articles published in the journal are typically longer than 20 pages.