Description:

Abstract: Background ultralight scalar fields that are considered as a viable candidate for galactic dark matter may manifest themselves in apparent variation of fundamental constants, see, for example, [1,2].
In this talk, we will discuss some of the recent work of our group and collaborators, for example [3-6], where we search for oscillating dark matter with Compton frequencies from near DC up to 100 MHz.

References

[1] A Arvanitaki, J Huang, and K Van Tilburg, “Searching for dilaton dark matter with atomic clocks,” Phys. Rev. D 91, 015015, 2015 [2] D Antypas, D Budker, VV Flambaum, MG Kozlov, G Perez, and J Ye, “Fast apparent oscillations of fundamental constants,” ANNALEN DER PHYSIK 2020, 1900566; arXiv:1912.01335
[3] A Banerjee, D Budker, M Filzinger, N Huntemann, G Paz, G Perez, S Porsev, and M Safronova, “Oscillating nuclear charge radii as sensors for ultralight dark matter,” arXiv:2301.10784 (2023)
[4] I.M. Bloch, D. Budker, V.V. Flambaum, I.B. Samsonov, A.O. Sushkov, and O. Tretiak, “Scalar dark matter induced oscillation of permanent-magnet field,” Phys. Rev. D 107, 075033 (2023), arXiv:2301.08514
[5] X Zhang, A Banerjee, M Leyser, G Perez, S Schiller, D Budker, and D Antypas, “Search for ultralight dark matter with spectroscopy of radio-frequency atomic transitions,” arXiv:2212.04413 (2022)
[6] O Tretiak, X Zhang, NL Figueroa, D Antypas, A Brogna, A Banerjee, G Perez, and D Budker, “Improved bounds on ultralight scalar dark matter in the radio-frequency range,” Phys. Rev. Lett. 129, 031301 (2022); arXiv:2201.02042

Speaker: Dmitry Budker, UC Berkeley & Johannes Gutenberg University