Precise universal edge asymptotics for planar $β=2$ Coulomb gases with radial external fields

Source abstract

We investigate the extremal statistics of planar $β=2$ Coulomb gases with radial external fields. For the rightmost eigenvalue and the spectral radius, we establish sharp Berry--Esseen bounds for their convergence to the Gumbel distribution, with explicit rates $$\frac{25\log\log n}{4e\log n} \quad\text{and}\quad \frac{2\log\log n}{e\log n},$$ respectively. In addition, we derive sharp asymptotic equivalences for the large and moderate deviations of both statistics across all relevant scales. Analogous results hold for the smallest modulus.