Probing Hawking temperature threshold via quantum depletion in Bose–Einstein condensate
- 1Seoul National University
Abstract
We investigate the correlation between quantum depletion and Hawking temperature in a ring-shaped Bose–Einstein condensate featuring an analog black hole-white hole horizon pair, using the Bogoliubov approach. The presence of horizons is found to enhance the quantum depletion compared to horizon-free configurations, indicating a correlation between depletion and horizon dynamics. Via tuning the Hawking temperature, we observe its effect on the depletion profile. Our results show that depletion increases with Hawking temperature, and beyond a certain threshold, backreaction effects emerge, challenging the validity of the Bogoliubov approximation. We identify a viable parameter regime where the system remains both theoretically controlled and experimentally accessible, offering insight into horizon-induced quantum fluctuations, with implications for future studies of backreaction.
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BibTeX
@article{rana2026probing,
title = {{Probing Hawking temperature threshold via quantum depletion in Bose–Einstein condensate}},
author = {Arun Rana},
journal = {The European Physical Journal C},
year = {2026},
month = oct,
doi = {10.1140/epjc/s10052-026-16404-6},
url = {https://link.springer.com/article/10.1140/epjc/s10052-026-16404-6},
note = {CC BY 4.0},
}
RIS
TY - JOUR
TI - Probing Hawking temperature threshold via quantum depletion in Bose–Einstein condensate
AU - Arun Rana
PY - 2026
DA - 2026/10/21
JO - The European Physical Journal C
DO - 10.1140/epjc/s10052-026-16404-6
UR - https://link.springer.com/article/10.1140/epjc/s10052-026-16404-6
AB - We investigate the correlation between quantum depletion and Hawking temperature in a ring-shaped Bose–Einstein condensate featuring an analog black hole-white hole horizon pair, using the Bogoliubov approach. The presence of horizons is found to enhance the quantum depletion compared to horizon-free configurations, indicating a correlation between depletion and horizon dynamics. Via tuning the Hawking temperature, we observe its effect on the depletion profile. Our results show that depletion increases with Hawking temperature, and beyond a certain threshold, backreaction effects emerge, challenging the validity of the Bogoliubov approximation. We identify a viable parameter regime where the system remains both theoretically controlled and experimentally accessible, offering insight into horizon-induced quantum fluctuations, with implications for future studies of backreaction.
SN - 1434-6044
SN - 1434-6052
ER -