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cond-mat.supr-con2026
Berry curvature effects of chiral superconducting rhombohedral graphene
Jian-Hua Zeng, Zhi Wang, Qian Niu
We study the Berry curvature effects of the Bogoliubov quasiparticles in chiral superconducting rhombohedral graphene. Using a two-band Bogoliubov-de Gennes Hamiltonian to describe…
quant-ph2026
High-Fidelity Hole Spin Qubits Reveal Quadrupolar Nuclear-Bath Dynamics in Isotopically Purified Planar Germanium
Jian Zeng, Xiangjun Tan, Hongzhang Wang +10
Planar Germanium has emerged as a promising platform to build spin-based large scale quantum computers. By exploiting the anisotropic hyperfine interaction of holes in Ge, qubits w…
cond-mat.supr-con2026
Semiclassical theory for the orbital magnetic moment of superconducting quasiparticles
Jian-Hua Zeng, Zhongbo Yan, Zhi Wang +1
We study the orbital magnetic moment of Bogoliubov quasiparticles in superconductors with the semiclassical approach. We derive the orbital magnetic moment of a quasiparticle wavep…