Unveiling the Bose-Einstein condensate-droplet crossover with Rayleigh superradiant scattering
- 1Hong Kong University of Science and Technology
- 2Rice University
Abstract
Light scattering plays an essential role in uncovering the properties of quantum states through light-matter interactions. Here, we explore the crossover from Bose-Einstein condensate (BEC) to droplets in a dipolar Er 166 gas by employing superradiant light scattering as both a probing and controlling tool. We observe that the efficiency of superradiant scattering exhibits a nonmonotonic behavior akin to the rate of sample expansion during the transition, signaling its sensitivity to the initial quantum state, and in turn revealing the BEC-droplet crossover. Through controlled atom depletion via superradiance, we analyze the sample's expansion dynamics and aspect ratio to identify the BEC-droplet phases distinctly, supported by Gaussian variational ansatz calculations. Finally, using these two approaches, we track how the BEC-droplet crossover points shift under varying magnetic field orientations. Our results show that superradiance can provide a state-sensitive probe and implement rapid atom-number quenches, opening new avenues for studying quantum states in atomic matter.
Versions
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BibTeX
@article{parit2026unveiling,
title = {{Unveiling the Bose-Einstein condensate-droplet crossover with Rayleigh superradiant scattering}},
author = {Mithilesh K. Parit and Mingchen Huang and Ziting Chen and Yifei He and Haoting Zhen and Gyu-Boong Jo},
journal = {Physical Review Research},
year = {2026},
month = oct,
doi = {10.1103/j662-tz3j},
url = {http://link.aps.org/doi/10.1103/j662-tz3j},
note = {CC BY 4.0},
}
RIS
TY - JOUR
TI - Unveiling the Bose-Einstein condensate-droplet crossover with Rayleigh superradiant scattering
AU - Mithilesh K. Parit
AU - Mingchen Huang
AU - Ziting Chen
AU - Yifei He
AU - Haoting Zhen
AU - Gyu-Boong Jo
PY - 2026
DA - 2026/10/28
JO - Physical Review Research
DO - 10.1103/j662-tz3j
UR - http://link.aps.org/doi/10.1103/j662-tz3j
AB - Light scattering plays an essential role in uncovering the properties of quantum states through light-matter interactions. Here, we explore the crossover from Bose-Einstein condensate (BEC) to droplets in a dipolar Er 166 gas by employing superradiant light scattering as both a probing and controlling tool. We observe that the efficiency of superradiant scattering exhibits a nonmonotonic behavior akin to the rate of sample expansion during the transition, signaling its sensitivity to the initial quantum state, and in turn revealing the BEC-droplet crossover. Through controlled atom depletion via superradiance, we analyze the sample's expansion dynamics and aspect ratio to identify the BEC-droplet phases distinctly, supported by Gaussian variational ansatz calculations. Finally, using these two approaches, we track how the BEC-droplet crossover points shift under varying magnetic field orientations. Our results show that superradiance can provide a state-sensitive probe and implement rapid atom-number quenches, opening new avenues for studying quantum states in atomic matter.
SN - 2643-1564
ER -