Congratulation to Lauriane Chomaz on the publication of her paper in Phys. Rev. A. In this work, Lauriane investigates the general relationships existing between the density contrast, the superfluid fraction, and the response to a high-energy scattering probe of density-modulated states within a classical-field approach.
This work was first motivated to develop an intuitive understanding of experimental and numerical-simulation results obtained by the ERBIUM team, currently in peer-review process. Beyond this specific application, this works provides a simple and general framework to describe density-modulated states and in particular the intriguing case of supersolids. It describes key properties characterizing the supersolid order and highlights possibilities for probing such properties based on high-energy scattering response.
link to article: https://journals.aps.org/pra/abstract/10.1103/PhysRevA.102.023333