Correlations in optical phonon spectra of complex solids

G. Fagas; Vladimir I. Fal’ko; C. Lambert; Yuval Gefen

doi:10.1103/PhysRevB.61.9851

Correlations in optical phonon spectra of complex solids

G. Fagas
, Vladimir I. Fal’ko
, C. Lambert
, Yuval Gefen

Research output: Contribution to journal › Article › peer-review

Abstract

Spectral correlations in the optical phonon spectrum of a solid with a complex unit cell are analyzed using the Wigner-Dyson statistical approach. Despite the fact that all force constants are real, we find that the statistics are predominantly of the GUE type depending on the location within the Brillouin zone of a crystal and the unit cell symmetry. Analytic and numerical results for the crossover from GOE to GUE statistics are presented.

Original language	English
Pages (from-to)	9851-9854
Number of pages	4
Journal	Physical Review B - Condensed Matter and Materials Physics
Volume	61
Issue number	15
DOIs	https://doi.org/10.1103/PhysRevB.61.9851
Publication status	Published - 2000
Externally published	Yes

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10.1103/PhysRevB.61.9851

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title = "Correlations in optical phonon spectra of complex solids",

abstract = "Spectral correlations in the optical phonon spectrum of a solid with a complex unit cell are analyzed using the Wigner-Dyson statistical approach. Despite the fact that all force constants are real, we find that the statistics are predominantly of the GUE type depending on the location within the Brillouin zone of a crystal and the unit cell symmetry. Analytic and numerical results for the crossover from GOE to GUE statistics are presented.",

author = "G. Fagas and Fal{\textquoteright}ko, \{Vladimir I.\} and C. Lambert and Yuval Gefen",

year = "2000",

doi = "10.1103/PhysRevB.61.9851",

language = "English",

volume = "61",

pages = "9851--9854",

journal = "Physical Review B - Condensed Matter and Materials Physics",

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publisher = "American Physical Society",

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T1 - Correlations in optical phonon spectra of complex solids

AU - Fagas, G.

AU - Fal’ko, Vladimir I.

AU - Lambert, C.

AU - Gefen, Yuval

PY - 2000

Y1 - 2000

N2 - Spectral correlations in the optical phonon spectrum of a solid with a complex unit cell are analyzed using the Wigner-Dyson statistical approach. Despite the fact that all force constants are real, we find that the statistics are predominantly of the GUE type depending on the location within the Brillouin zone of a crystal and the unit cell symmetry. Analytic and numerical results for the crossover from GOE to GUE statistics are presented.

AB - Spectral correlations in the optical phonon spectrum of a solid with a complex unit cell are analyzed using the Wigner-Dyson statistical approach. Despite the fact that all force constants are real, we find that the statistics are predominantly of the GUE type depending on the location within the Brillouin zone of a crystal and the unit cell symmetry. Analytic and numerical results for the crossover from GOE to GUE statistics are presented.

UR - https://www.scopus.com/pages/publications/18244361822

U2 - 10.1103/PhysRevB.61.9851

DO - 10.1103/PhysRevB.61.9851

M3 - Article

AN - SCOPUS:18244361822

SN - 1098-0121

VL - 61

SP - 9851

EP - 9854

JO - Physical Review B - Condensed Matter and Materials Physics

JF - Physical Review B - Condensed Matter and Materials Physics

IS - 15

ER -

Correlations in optical phonon spectra of complex solids

Abstract

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