Quaternionic Dirac oscillator

Quaternionic Dirac oscillator
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四元狄拉克振子

DOI:
10.1088/1751-8121/ac8708
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发表时间:
2022
期刊:
Journal of Physics A: Mathematical and Theoretical
影响因子:
--
通讯作者:
B. Zhilinskií
B. Zhilinskií
中科院分区:
--
文献类型:
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作者:
D. Sadovskií;B. Zhilinskií

文献摘要

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我们构造了一个具有一个形式控制参数和两个慢自由度的基本四元数慢-快Hamilton动力学系统,该系统具有两个慢振子,自旋为1:1:2的半整数共振.我们的系统在自旋反转下是不变的,并且具有其快速Kramers简并半量子本征值的余维5交叉,是Avron等人(1989 Commun. Math.Phys.124595 -627),表现出非阿贝尔几何相位。通过量子超带之间的谱流与Avron等人计算的Chern数c2的相等性揭示了这一等价性。
We construct an elementary quaternionic slow–fast Hamiltonian dynamical system with one formal control parameter and two slow degrees of freedom as half-integer spin in resonance 1:1:2 with two slow oscillators. Invariant under spin reversal and having a codimension-5 crossing of its fast Kramers-degenerate semi-quantum eigenvalues, our system is the dynamical equivalent of the spin-quadrupole model by Avron et al (1989 Commun. Math. Phys. 124 595–627), exhibiting non-Abelian geometric phases. The equivalence is uncovered through the equality of the spectral flow between quantum superbands and Chern numbers c 2 computed by Avron et al.