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cond-mat.supr-con2025★ 3 cited
Quantized Quadrupole Superconductors
Yun-Mei Li, Yongwei Huang, Kai Chang
We introduce a class of superconductors termed "quantized quadrupole superconductors" that support Majorana corner modes according to the bulk-corner correspondence, distinct from…
cond-mat.supr-con2025★ 1 cited
Unconventional Geometric Phase in Twisted Junction of Cuprates
Zhigang Song, Kai Chang
Originally introduced in optics, the Pancharatnam-Berry phase is a general concept of geometric phase defined for any two interfering polarization states. In electronic systems, ho…