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Sonic black holes with thick horizons in BECs
Abstract
We consider simple one dimensional models of acoustic black holes formed by Bose-Einstein condensates where the flow is stepwise homogeneous. We shall concentrate on the case in which an extended sonic region is present, i.e. a region where the flow velocity equals exactly the speed of sound. These models can be thought of as acoustic black holes with a thick horizon. Particular attention will be devoted to the number of created particles and to the density-density correlation functions, these latter being at present time the experimental tool to identify Hawking like radiation in acoustic black holes.
Versions
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BibTeX
@misc{penalver2026sonic,
title = {{Sonic black holes with thick horizons in BECs}},
author = {Daniel Peñalver and Marco De Vito and Roberto Balbinot and Alessandro Fabbri},
howpublished = {arXiv},
year = {2026},
month = sep,
doi = {10.48550/arxiv.2607.11396},
eprint = {2607.11396},
archivePrefix = {arXiv},
url = {https://arxiv.org/abs/2607.11396},
}
RIS
TY - UNPB
TI - Sonic black holes with thick horizons in BECs
AU - Daniel Peñalver
AU - Marco De Vito
AU - Roberto Balbinot
AU - Alessandro Fabbri
PY - 2026
DA - 2026/09/29
PB - arXiv
DO - 10.48550/arxiv.2607.11396
UR - https://arxiv.org/abs/2607.11396
AB - We consider simple one dimensional models of acoustic black holes formed by Bose-Einstein condensates where the flow is stepwise homogeneous. We shall concentrate on the case in which an extended sonic region is present, i.e. a region where the flow velocity equals exactly the speed of sound. These models can be thought of as acoustic black holes with a thick horizon. Particular attention will be devoted to the number of created particles and to the density-density correlation functions, these latter being at present time the experimental tool to identify Hawking like radiation in acoustic black holes.
ER -