2019/04/30 by Daniel F. Agterberg, J. C. Séamus Davis, Stephen D. Edkins +7 · 1 citation
Physics and Astronomy · #cond-mat.supr-con
paper · pdf · doi:10.1146/annurev-conmatphys-031119-050711
published as Annual Review of Condensed Matter Physics 11, 231 (2020) · 43 pages, 16 figures, 236 references. Mildly edited final version to appear in Annual Reviews of Condensed Matter Physics (with improved figures)
arxiv created 2019/12/01 · arxiv updated 2020/03/20
We review the physics of pair density wave (PDW) superconductors. We begin with a macroscopic description that emphasizes order induced by PDW states, such as charge density wave, and discuss related vestigial states that emerge as a consequence of partial meting of the PDW order. We review and critically discuss the mounting experimental evidence for such PDW order in the cuprate superconductors, the status of the theoretical microscopic description of such order, and the current debate on whether the PDW is a "mother order" or another competing order in the cuprates. In addition, we give an overview of the weak coupling version of PDW order, Fulde-Ferrell-Larkin-Ovchinnikov states, in the context of cold atom systems, unconventional superconductors, and non-centrosymmetric and Weyl materials.