  The essence of the Mpemba effect is that non-equilibrium systems may relax
faster the further they are from their equilibrium configuration. In the
quantum realm, this phenomenon arises in the dynamics of closed systems, where
it is witnessed by fundamental features such as symmetry and entanglement.
Here, we study the quantum Mpemba effect in charge-preserving random circuits
on qudits via entanglement asymmetry, combining extensive numerical simulations
and analytical mapping to a classical statistical mechanics problem. We show
that the more asymmetric certain classes of initial states (tilted
ferromagnets) are, the faster they restore symmetry and reach the
grand-canonical ensemble. Conversely, other classes of states (tilted
antiferromagnets) do not show the Mpemba effect. Our analysis is based on
minimal principles -- locality, unitarity, and symmetry. Consequently, our
results represent a significant advancement in clarifying the emergence of
Mpemba physics in generic systems, including Hamiltonian and Floquet quantum
circuits.
