[NCTS Physics Research Highlights] Hsi-Yu Schive 'Deciphering the Soliton-Halo Relation in Fuzzy Dark Matter', Phys. Rev. Lett. 135, 061002 (2025)

• 2025-10-09
• Chen, Jhan Yu 陳詹喻
• High Energy Physics and Astrophysics

Deciphering the Soliton–Halo Relation in Fuzzy Dark Matter
揭秘波暗物質的核心結構

Pin-Yu Liao (廖品瑜), Guan-Ming Su (蘇冠銘), Hsi-Yu Schive (薛熙于)*, Alexander Kunkel, Hsinhao Huang (黃新豪), and Tzihong Chiueh (闕志鴻)
Phys. Rev. Lett. 135, 061002 (2025)
DOI: https://doi.org/10.1103/9dqj-q6mt

Soliton cores at the centers of fuzzy dark matter (FDM) halos offer a distinctive signature that sets FDM apart from other dark matter models. However, the precise soliton–halo relation remains unsettled. Here, we perform extensive ultra-high-resolution cosmological simulations, revealing thermal equilibrium and energy equipartition between solitons and halos, and derive a refined relation that agrees with virialized halos to within ~30%.

波暗物質（FDM）預測星系核心存在孤立子，這是區分 FDM 與其他暗物質模型的重要特徵。然而，孤立子與周圍暗物質暈之間的關聯仍廣受爭論。本研究透過大量超高解析度的宇宙學電腦模擬，首度揭示兩者之間的熱平衡與能量等分，並建立更精確的理論模型，以與未來天文觀測相互驗證。