Tomography of Feshbach Resonance States

Coherent Control of Ultracold Molecular Collisions: The Role of Resonances

“…By contrast, in the case of the overlap of many broad resonances or in measurements that involve averages over resonances, such as those of scattering rates, control is suppressed as the system approaches the limit of statistical scattering. 22 These results imply that experiments allowing for reduced thermal averaging, such as in the optical collider 49−51 or the tomography of resonances, 52 can afford an improved platform for coherent control and provide deep insight into ultracold scattering insofar as averaging over collision energies can hide the underlying physics. We note that magnetic scattering resonances have been observed in ultracold atom−molecule scattering, such as 23 Na 40 K + 40 K, 38 and in ultracold NaLi + NaLi collisions.…”

Complete Quantum Coherent Control of Ultracold Molecular Collisions

“…or the tomography of resonances,52 can afford an improved platform for coherent control and provide deep insight into ultracold scattering insofar as averaging over collision energies can hide the underlying physics.We note that magnetic scattering resonances have been observed in ultracold atommolecule scattering, such as 23 Na 40 K + 40 K,38 and in ultracold NaLi+NaLi collisions 53. Since the density of resonances is generally lower in atom-diatom scattering, these systems present desirable opportunities for coherent control of scattering observable at low temperatures.…”