2025/04/23 by Foxon, Bethany, Jammi, Sindhu, Fernholz, Thomas
#Atomic Physics (physics.atom-ph) #FOS: Physical sciences #Quantum Physics (quant-ph)
paper · doi:10.48550/arxiv.2504.17143
We demonstrate engineering of a narrow microwave transition between trappable states in radio-frequency-dressed 87rubidium, reducing the static field dependence. A single-frequency, off-resonant microwave field allows for the suppression of the differential Zeeman shift arising from the nuclear magnetic moment to at least first order. The field dependence can be suppressed further with additional dressing fields, which we demonstrate experimentally with two microwave frequencies. The engineered transition can thus be used in a range of cold atom schemes that rely on coherent state superpositions.