UNSPECIFIED. (2001) Optical conductivity of one-dimensional Mott insulators. PHYSICAL REVIEW LETTERS, 86 (4). pp. 680-683. ISSN 0031-9007

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Abstract

We calculate the optical conductivity of one-dimensional Mott insulators at low energies using a field theory description. The square root singularity at the optical gap, characteristic of band insulators, is generally absent and appears only at the Luther-Emery point. We also show that only few particle processes contribute significantly to the optical conductivity over a wide range of frequencies and that the bare perturbative regime is recovered only at very large energies. We discuss possible applications of our results to quasi-one-dimensional organic conductors. DOI: 10.1103/PhysRevLett.86.680.

Item Type:	Journal Article
Subjects:	Q Science > QC Physics
Journal or Publication Title:	PHYSICAL REVIEW LETTERS
Publisher:	AMERICAN PHYSICAL SOC
ISSN:	0031-9007
Official Date:	22 January 2001
Dates:	Date Event 22 January 2001 UNSPECIFIED
Volume:	86
Number:	4
Number of Pages:	4
Page Range:	pp. 680-683
Publication Status:	Published
URI:	http://wrap.warwick.ac.uk/id/eprint/12495

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