Self-consistent theory of $2\times2$ pair density waves in kagome
superconductors
Self-consistent theory of $2\times2$ pair density waves in kagome
superconductors
Pair density wave (PDW) is an intriguing quantum matter proposed in the frontier of condensed matter physics. However, the existence of PDW in microscopic models has been rare. In this work, we obtain, by Ginzburg-Landau arguments and self-consistent mean field theory, novel $2a_0\times2a_0$ PDW on the kagome lattice arising from …