3 papers
cond-mat.str-el2025
Pair-density-wave phase of strongly interacting electrons on the triangular lattice: A variational Monte Carlo study
Jiucai Wang, Wen Sun, Hao-Xin Wang +3
A robust theory of the mechanism of pair density wave (PDW) superconductivity (i.e. where Cooper pairs have nonzero center of mass momentum) remains elusive. Here we explore the tr…
cond-mat.str-el2025
Emergent Gauge Fields in Band Insulators
Zhaoyu Han, Steven Kivelson
By explicit microscopic construction involving a mapping to a quantum vertex model subject to the `ice rule,' we show that an electronically `trivial' band insulator with suitable…
cond-mat.supr-con2025
Models of interacting bosons with exact ground states: a unified approach
Zhaoyu Han, Steven A. Kivelson
We define an infinite class of ``frustration-free'' interacting lattice quantum Hamiltonians for bosons, constructed such that their exact ground states have a density distribution…