3 papers
quant-ph2026
Optical repumping and atom number balancing in a two-color MOT
Shubha Deutschle, LÅrinc Sárkány, Milán János Negyedi +3
We study a novel repumping transition for Sr atoms trapped in a 'blue' magneto-optical trap. We show that, while the repumping efficiency is about three orders of magnitude…
quant-ph2026
Shaping Cold Atom Clouds with a Vortex Beam
Arianna Bertoluzza, Sonja Lorenz, Paul Hampp +5
We introduce a method for shaping a cold atom cloud using a vortex laser beam with a polarization singularity at its center, which creates a point of vanishing intensity. Exploitin…
quant-ph2025
Bandwidth enhanced current noise suppression with a SERF magnetometer
Tobias Menold, Arianna Bertoluzza, Patrick Hildebrand +4
This work investigates the behavior of a spin-exchange relaxation-free (SERF) magnetometer integrated into the feedback branch of a closed-loop control circuit, designed to activel…