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:
影响因子:
--
通讯作者:
B. Zhilinskií
中科院分区:
文献类型:
--
作者:
D. Sadovskií;B. Zhilinskií
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.