Article on 87-Sr beam

Summary
We will demonstrate the production of dipole guided high phase-space density, high-brilliance beam of fermionic 87Sr. Such a beam would allow the construction of a superradiant laser without the need to apply a homogeneous magnetic field in the cavity. For 88Sr the magnetic field is needed to allow the clock transition, whereas in 87Sr the transition is allowed by hyperfine mixing. This task requires adding a second frequency component to all red MOT laser beams.