The paper describes a simple mechanism for superconducting pairing with finite wave vector (Pair Density Wave) which is illustrated with a quasi one-dimensional model. Within this model pair and charge density wave order parameters are intertwined emerging as components of the same matrix field and are related by particle-hole symmetry. Experimental applications are discussed.
@article{arxiv.2305.16062,
title = {A Tractable Model of Pair Density Wave},
author = {A. M. Tsvelik},
journal= {arXiv preprint arXiv:2305.16062},
year = {2023}
}