Optical Shielding of Destructive Chemical Reactions between Ultracold Ground-State NaRb Molecules

We propose a method to suppress the chemical reactions between ultracold bosonic ground-state ^{23}\mathrm{Na}^{87}\mathrm{Rb}molecules based on optical shielding. By applying a laser with a frequency blue-detuned from the transition between the lowest rovibrational level of the electronic ground state {X}^{1}{\mathrm{\ensuremath{\Sigma}}}^{+}({v}_{X}=0,{j}_{X}=0) and the long-lived excited level...