The absence of clear signals from particle dark matter in direct detection experiments motivates new approaches in disparate regions of viable parameter space. In this Snowmass white paper, we outline the Windchime project, a program to build a large array of quantum-enhanced mechanical sensors. The ultimate aim is to build a detector capable of searching for Planck mass-scale dark matter purely through its gravitational coupling to ordinary matter. In the shorter term, we aim to search for a number of other physics targets, especially some ultralight dark matter candidates. Here, we discuss the basic design, open R&D challenges and opportunities, current experimental efforts, and both short- and long-term physics targets of the Windchime project.
@article{arxiv.2203.07242,
title = {Snowmass 2021 White Paper: The Windchime Project},
author = {The Windchime Collaboration and Alaina Attanasio and Sunil A. Bhave and Carlos Blanco and Daniel Carney and Marcel Demarteau and Bahaa Elshimy and Michael Febbraro and Matthew A. Feldman and Sohitri Ghosh and Abby Hickin and Seongjin Hong and Rafael F. Lang and Benjamin Lawrie and Shengchao Li and Zhen Liu and Juan P. A. Maldonado and Claire Marvinney and Hein Zay Yar Oo and Yun-Yi Pai and Raphael Pooser and Juehang Qin and Tobias J. Sparmann and Jacob M. Taylor and Hao Tian and Christopher Tunnell},
journal= {arXiv preprint arXiv:2203.07242},
year = {2022}
}
Comments
8 pages, 3 figures. Contribution to the Snowmass 2021 proceedings (Cosmic Frontier working groups 1 and 2 - particle and wave-like dark matter)