krB
KRb is the diatomic molecule formed from potassium (K) and rubidium (Rb). As a heteronuclear diatomic, KRb in its electronic ground state is a polar molecule with a permanent electric dipole moment, enabling long-range, anisotropic interactions between molecules in ultracold ensembles.
In ultracold-atom experiments, KRb is typically created from mixtures of ultracold K and Rb atoms. A common
Ground-state KRb molecules have a sizable dipole moment, on the order of half a Debye, which can
A major experimental challenge is chemical reactivity: two KRb molecules can react to form K2 and Rb2,