PreprintarXiv licencearXiv
Superfluid memory effect
Abstract
We identify a memory effect produced by phonon scattering in a superfluid: a localized scattering event generates a far-field pressure pulse with vanishing time integral but a nonzero first temporal moment, corresponding to a permanent shift in a prepotential for the far-field velocity. The effect is controlled by the soft factor for phonon emission, including corrections from nonlinear dispersion. In superfluid 4He, scattering macroscopic phonon wave packets produces a signal whose estimated magnitude may lie within experimental reach, thereby providing a laboratory analogue of electromagnetic and gravitational memory.
Related
- From Modal Memory to Topological Relaxation in a Driven Holographic Superfluid
- Dynamical superfluid and Bose-insulator phases in quantized microcavity lattices
- Fluxtube Bouquets and Type-1.5 Clustering in Superfluid Neutron Star Cores
- Superfluid helium
- Minimal superfluid vortices in chiral perturbation theory
BibTeX
@misc{jensen2026superfluid,
title = {{Superfluid memory effect}},
author = {Kristan Jensen and Alfredo Pérez and Stefan Prohazka},
howpublished = {arXiv},
year = {2026},
month = aug,
doi = {10.48550/arxiv.2608.31172},
eprint = {2608.31172},
archivePrefix = {arXiv},
url = {https://arxiv.org/abs/2608.31172},
}
RIS
TY - UNPB
TI - Superfluid memory effect
AU - Kristan Jensen
AU - Alfredo Pérez
AU - Stefan Prohazka
PY - 2026
DA - 2026/08/31
PB - arXiv
DO - 10.48550/arxiv.2608.31172
UR - https://arxiv.org/abs/2608.31172
AB - We identify a memory effect produced by phonon scattering in a superfluid: a localized scattering event generates a far-field pressure pulse with vanishing time integral but a nonzero first temporal moment, corresponding to a permanent shift in a prepotential for the far-field velocity. The effect is controlled by the soft factor for phonon emission, including corrections from nonlinear dispersion. In superfluid ^4He, scattering macroscopic phonon wave packets produces a signal whose estimated magnitude may lie within experimental reach, thereby providing a laboratory analogue of electromagnetic and gravitational memory.
ER -