Condensed Matter and Biological Physics Seminars

I will give a brief review about the competing order physics in cuprates and present our recent work on the d-wave checkerboard order which presents a unified explanation of recent STM results. We show that a d-wave ordering in particle-hole channel, dubbed as d-wave checkerboard order, possesses important physics that can sufficiently explain the STM results in cuprates. A weak d-wave checkerboard order can effectively suppress the coherence peak in the single-particle spectrum while leaving the spectrum along nodal directions almost unaffected. Simultaneously, it generates a Fermi arc with little dispersion around nodal points at finite temperature that is consistent with the results of ARPES experiments in the pseudogap phase. We also show that there is a general duality between the d-wave checkerboard order and the pair density wave order. Suppressing superconductivity locally or globally through phase fluctuation should induce both orders in underdoped cuprates and explain the nodal-antinodal dichotomy observed in ARPES and STM experiments.