0000000000976790
AUTHOR
Yucheng Yang
Investigation of antirelaxation wall coatings beyond melting temperatures
We investigate vapor cells with antirelaxation wall coatings by measuring their relaxation properties beyond the melting temperatures and compare with the melting behavior of the coating material as observed with differential scanning calorimetry.
Search for topological defect dark matter with a global network of optical magnetometers
Ultralight bosons such as axion-like particles are viable candidates for dark matter. They can form stable, macroscopic field configurations in the form of topological defects that could concentrate the dark matter density into many distinct, compact spatial regions that are small compared with the Galaxy but much larger than the Earth. Here we report the results of the search for transient signals from the domain walls of axion-like particles by using the global network of optical magnetometers for exotic (GNOME) physics searches. We search the data, consisting of correlated measurements from optical atomic magnetometers located in laboratories all over the world, for patterns of signals p…