Large deviations for zeros of P(φ)₂ random polynomials
classification
🧮 math.PR
keywords
gaussianpolynomialsrandomzeroscasedeviationsensembleslarge
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We extend results of Zeitouni-Zelditch on large deviations principles for zeros of Gaussian random polynomials $s$ in one complex variable to certain non-Gaussian ensembles that we call $P(\phi)_2$ random polynomials. The probability measures are of the form $e^{- S(f)} df$ where the actions $S(f)$ are finite dimensional analgoues of those of $P(\phi)_2$ quantum field theory. The speed and rate function are the same as in the associated Gaussian case. As a corollary, we prove that the expected distribution of zeros in the $P(\phi)_2$ ensembles tends to the same equilibrium measure as in the Gaussian case.
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