Dec 11 – 15, 2023
Tsung-Dao Lee Institute
Asia/Shanghai timezone

Probing Ultralight Dark Matter with Gravitational-Wave Detectors in Space

Dec 14, 2023, 5:00 PM
Hall # 1

Hall # 1

Contributed talk in mini symposium Dark Matter


Yong Tang (University of Chinese Academy of Sciences)


Ultralight bosonic fields (ULBFs) are predicted by various theories beyond the standard model of particle physics and are viable candidates of cold dark matter. There have been increasing interests to search for the ULBFs in physical and astronomical experiments. In this paper, we investigate the sensitivity of several planned space-based gravitational-wave interferometers to ultralight scalar and vector fields. Using time-delay interferometry (TDI) to suppress the overwhelming laser frequency noise, we derive the averaged transfer functions of different TDI combinations to scalar and vector fields, and estimate the impacts of bosonic field's velocities. We obtain the sensitivity curves for LISA, Taiji and TianQin, and explore their projected constraints on the couplings between ULBFs and standard model particles, illustrating with the ULBFs as dark matter.

Primary author

Yong Tang (University of Chinese Academy of Sciences)

Presentation materials