Columbia University researchers led by a prominent physicist achieved unprecedented stability in ultracold sodium-cesium (NaCs) molecules by employing protective microwave shields that suppress loss processes and allow strong dipolar interactions.

The stabilization dramatically extended molecule lifetimes to more than six seconds, cutting destructive two-body collisions by over 10,000-fold and three-body collisions by more than 1,000-fold.

The microwave dressing technique provides precise control over molecular interactions, enabling both dipolar and antidipolar forces and opening access to the strongly interacting regime needed for advanced quantum simulation.

The work demonstrates that extremely low losses can be maintained even under strong dipolar interactions, addressing a major hurdle for using ultracold molecules in quantum technologies.

Building on prior Columbia work in molecular Bose-Einstein condensation and molecular droplets, the research expands possibilities for exploring quantum phases such as droplets, supersolids, and analogs of high-temperature superconductivity in simulations.

The team aims to study ultrastable NaCs molecules in optical lattices to simulate magnetism and potentially realize spin liquids, with expectations of revealing new quantum order.

Columbia emphasizes its ongoing commitment to quantum research and industry collaboration, highlighted by a recent workshop aimed at connecting quantum science with practical applications.