New bounds on dark matter coupling from a global network of optical atomic clocks
New bounds on dark matter coupling from a global network of optical atomic clocks
We report on the first earth-scale quantum sensor network based on optical atomic clocks aimed at dark matter (DM) detection. Exploiting differences in the susceptibilities to the fine-structure constant of essential parts of an optical atomic clock, i.e. the cold atoms and the optical reference cavity, we can perform sensitive …