Searching for axions and axion-like particles with atomic magnetometers and nuclear magnetic resonance


Prof. Dmitry Budker, The University of California, Berkeley
Note that this colloquium will be held in 07-222 (Parnell Building) at 3pm.

Recently, attention has been drawn to the possibility of searching for ultralight (particle mass 10-12-10-6 eV) fields that could be a significant component of Dark Matter. In this talk, I will describe two such international-collaboration experiments: the Cosmic Axion Spin Precession Experiment (CASPEr) [1] and the Global Network of Optical Magnetometers for Exotic physics searches (GNOME) [2, 3]. These searches are intrinsically related to the other fundamental-physics quests, including the multipronged attempts to understand matter-antimatter asymmetry of the Universe.

[1] Dmitry Budker, Peter W. Graham, Micah Ledbetter, Surjeet Rajendran, and Alex Sushkov, PHYSICAL REVIEW X, 021030 (2014); (arXiv:1306.6089)

[2] M. Pospelov, S. Pustelny, M. P. Ledbetter, D. F. Jackson Kimball, W. Gawlik, and D. Budker, Phys. Rev. Lett. 110, 021803 (2013;  arXiv:1205.6260)

[3] S. Pustelny, D. F. Jackson Kimball, C. Pankow, M. P. Ledbetter, P. Wlodarczyk, P. Wcislo, M. Pospelov, J. Smith, J. Read, W. Gawlik, and D. Budker,  Annalen der Physik (2013); (arXiv:1303.5524)

Prof. Dmitry Budker – Searching for axions and ALPs with atomic magnetometers and nuclear magnetic resonance from School of Mathematics & Physics on Vimeo.