Comment on "Absence of Off-Diagonal Long- Range Order in hcp $^4$He Dislocation Cores"
Other Condensed Matter
2023-12-10 v1
Abstract
We contend that the arguments provided in Phys. Rev. Lett. 130, 016001 (2023), purporting to show the absence of off-diagonal long-range order in hcp He dislocation cores are misleading and incorrect. In particular, the one-body density matrix averaged over the whole crystalline sample provides no useful information on the possible superfluid behavior inside the quasi-one-dimensional core of a dislocation in the crystal.
Keywords
Cite
@article{arxiv.2303.12174,
title = {Comment on "Absence of Off-Diagonal Long- Range Order in hcp $^4$He Dislocation Cores"},
author = {M. Boninsegni and A. Kuklov and L. Pollet and N. Prokof'ev and B. Svistunov},
journal= {arXiv preprint arXiv:2303.12174},
year = {2023}
}