Spectral correlations: understanding oscillatory contributions

Details Spectral correlations: understanding oscillatory contributions Spectral correlations: understanding oscillatory contributions

1999-05-27

arxiv.org/abs/cond-mat/9905412v1

Phys. Rev. E 63, 045203 (2001)

Physics

Condensed Matter

Disordered Systems and Neural Networks

4 pages, 1 postscript figure

Scientific paper

10.1103/PhysRevE.63.045203

We give a transparent derivation of a relation obtained using a supersymmetric non-linear sigma model by Andreev and Altshuler [Phys. Rev. Lett. 72, 902, (1995)], which connects smooth and oscillatory components of spectral correlation functions. We show that their result is not specific to random matrix theory. Also, we show that despite an apparent contradiction, the results obtained using their formula are consistent with earlier perspectives on random matrix models. In particular, the concept of resurgence is not required.

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