Squeezed Vibrational States in Superfluid Helium
Other Condensed Matter
2026-05-08 v1 Optics
Quantum Physics
Abstract
Ultrafast birefringence oscillations observed in superfluid helium provide evidence for anisotropic quantum squeezing of quasiparticle pairs. The measured response is a superposition of contributions from all vibrational modes, with dominant contributions from rotons, maxons, and Pitaevskii's plateau. The nonzero initial phase follows naturally from multimode interference.
Keywords
Cite
@article{arxiv.2605.05345,
title = {Squeezed Vibrational States in Superfluid Helium},
author = {Lev A. Melnikovsky},
journal= {arXiv preprint arXiv:2605.05345},
year = {2026}
}
Comments
8 pages, 1 figure