Observation of universal dynamics in a spinor Bose gas far from equilibrium

Understand

The dynamics of quantum systems far from equilibrium represents one of the most challenging problems in theoretical many-body physics.

• While the evolution is in general intractable in all its details, relevant observables can become insensitive to microscopic system parameters and initial conditions.
• This is the basis of the phenomenon of universality.
• Far from equilibrium, universality is identified through the scaling of the spatiotemporal evolution of the system, captured by universal exponents and functions.