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cond-mat.supr-con2025
Emblems of pair density waves: dual identity of topological defects and their transport signatures
Omri Lesser, Chunli Huang, James P. Sethna +1
The pair density wave (PDW) exemplifies intertwined orders in strongly correlated systems. A recent discovery of superconductivity in a quarter-metal state offers the first experim…
cond-mat.supr-con2025
Gaplessness from disorder and quantum geometry in gapped superconductors
Omri Lesser, Sagnik Banerjee, Xuepeng Wang +3
It is well known that disorder can induce low-energy Andreev bound states in a sign-changing, but fully gapped, superconductor at junctions. Generically, these excitations are…