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Ebru Ergun

Publications and source records attributed to Ebru Ergun.

2 recordsLinked to original sources

On the Spectrum of a Discrete Non-Hermitian Quantum System

In this paper, we develop spectral analysis of a discrete non-Hermitian quantum system that is a discrete counterpart of some continuous quantum systems on a complex contour. In particular, simple conditions for discreteness of the spectrum are established.

math-ph

Sensitivity to initial conditions in coherent noise models

Sensitivity to initial conditions in the coherent noise model of biological evolution, introduced by Newman, is studied by making use of damage spreading technique. A power-law behavior has been observed, the associated exponent $α$ and the dynamical exponent $z$ are calculated. Using these values a clear data collapse has been obtained.

cond-mat.stat-mech