In ultracold atomic gases, Feshbach resonances give us access to the unitary regime, where the s-wave scattering length diverges and two-body interactions are as strong as allowed by the laws…
Quantum mechanics dictates that a continuous measurement of the position of an object imposes a random quantum back action (QBA) perturbation on its momentum. This randomness translates with time into…
…opened up by those systems, including the observation of many-photon bound states, the preparation of Fock states, the simulation of long-range spin interacting models, or the observation of exotic features…