Value distribution for eigenfunctions of desymmetrized quantum maps
| dc.creator | Kurlberg, Par | |
| dc.creator | Rudnick, Zeev | |
| dc.date | 2001-01-08 | |
| dc.date.accessioned | 2026-07-07T04:28:15Z | |
| dc.date.available | 2026-07-07T04:28:15Z | |
| dc.description | We study the value distribution and extreme values of eigenfunctions for the ``quantized cat map''. This is the quantization of a hyperbolic linear map of the torus. In a previous paper it was observed that there are quantum symmetries of the quantum map - a commutative group of unitary operators which commute with the map, which we called ``Hecke operators''. The eigenspaces of the quantum map thus admit an orthonormal basis consisting of eigenfunctions of all the Hecke operators, which we call ``Hecke eigenfunctions''. In this note we investigate suprema and value distribution of the Hecke eigenfunctions. For prime values of the inverse Planck constant N for which the map is diagonalizable modulo N (the ``split primes'' for the map), we show that the Hecke eigenfunctions are uniformly bounded and their absolute values (amplitudes) are either constant or have a semi-circle value distribution as N tends to infinity. Moreover in the latter case different eigenfunctions become statistically independent. We obtain these results via the Riemann hypothesis for curves over a finite field (Weil's theorem) and recent results of N. Katz on exponential sums. For general N we obtain a nontrivial bound on the supremum norm of these Hecke eigenfunctions. | |
| dc.identifier | https://arxiv.org/abs/math-ph/0101008 | |
| dc.identifier | http://arxiv.org/abs/math-ph/0101008 | |
| dc.identifier.uri | http://salesiana.dossiersoluciones.com/handle/123456789/56714 | |
| dc.subject | Mathematical Physics | |
| dc.subject | Number Theory | |
| dc.subject | Chaotic Dynamics | |
| dc.title | Value distribution for eigenfunctions of desymmetrized quantum maps | |
| dc.type | text |