Magnetoroton satellites in the fractional quantum Hall effect

S. R.Eric Yang

doi:10.1103/PhysRevB.40.1836

Magnetoroton satellites in the fractional quantum Hall effect

S. R.Eric Yang

Research output: Contribution to journal › Article

5 Citations (Scopus)

Abstract

The properties of the optical-absorption spectrum of the Laughlin liquid state in the presence of a localized dynamic perturbation are investigated. We find that the absorption spectrum consists of magnetoroton satellites. The threshold of the absorption spectrum is finite and a power-law singularity is absent because of the incompressibility of the Laughlin state. A possibility for direct experimental observation of magnetorotons is discussed.

Original language	English
Pages (from-to)	1836-1838
Number of pages	3
Journal	Physical Review B
Volume	40
Issue number	3
DOIs	https://doi.org/10.1103/PhysRevB.40.1836
Publication status	Published - 1989
Externally published	Yes

ASJC Scopus subject areas

Condensed Matter Physics

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10.1103/PhysRevB.40.1836

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Yang, S. R. E. (1989). Magnetoroton satellites in the fractional quantum Hall effect. Physical Review B, 40(3), 1836-1838. https://doi.org/10.1103/PhysRevB.40.1836

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AB - The properties of the optical-absorption spectrum of the Laughlin liquid state in the presence of a localized dynamic perturbation are investigated. We find that the absorption spectrum consists of magnetoroton satellites. The threshold of the absorption spectrum is finite and a power-law singularity is absent because of the incompressibility of the Laughlin state. A possibility for direct experimental observation of magnetorotons is discussed.

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