2 papers
cond-mat.str-el2024
Bilayer construction for mixed state phenomena with strong, weak symmetries and symmetry breakings
Shuangyuan Lu, Penghao Zhu, Yuan-Ming Lu
We introduce the bilayer construction, as a specific purification scheme for a general mixed state, where each mixed state has a one-to-one correspondence with a bilayer pure state…
cond-mat.str-el2024
Obstruction to Broken Symmetries in Topological Flat Bands
Penghao Zhu, Shi Feng, Yuan-Ming Lu
Motivated by the abundance of symmetry breaking states in magic-angle twisted bilayer graphene and other two-dimensional materials, we study superconducting (SC) and charge orders…