Twisted (co)homology of non-orientable Weyl semimetals

SciPost Physics · 2026-11-04 · 期刊论文

The quasi-particle excitations in Weyl semimetals, known as Weyl fermions, are usually forced to emerge in charge-conjugate pairs by the Nielsen–Ninomiya theorem. When the Brillouin zone is non-orientable, this constraint is replaced by a \mathbb{Z}_2 ℤ 2 charge cancellation, as a result of the chirality becoming ill defined on such manifolds; this results in configurations with seemingly non-zero total chirality. He…

（中文解读待补写）

🔗 打开原文

Thijs Douwes, Marcus Stålhammar

本文摘自《每日前沿研究简报 · 2026-11-06》「物理学」。本内容仅用于研究信息整理与科普交流，不构成医疗建议。