Time-reversal symmetry and random polynomials

Details Time-reversal symmetry and random polynomials Time-reversal symmetry and random polynomials

1996-11-06

arxiv.org/abs/chao-dyn/9611003v1

J.Phys.A: Math.Gen. 30 (1997), L117-L123

Physics

Condensed Matter

Mesoscale and Nanoscale Physics

4 RevTex pages, 3 Postscript figures

Scientific paper

10.1088/0305-4470/30/6/002

We analyze the density of roots of random polynomials where each complex coefficient is constructed of a random modulus and a fixed, deterministic phase. The density of roots is shown to possess a singular component only in the case for which the phases increase linearly with the index of coefficients. This means that, contrary to earlier belief, eigenvectors of a typical quantum chaotic system with some antiunitary symmetry will not display a clustering curve in the stellar representation. Moreover, a class of time-reverse invariant quantum systems is shown, for which spectra display fluctuations characteristic of orthogonal ensemble, while eigenvectors confer to predictions of unitary ensemble.

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