Optical conductivity of one-dimensional Mott insulators.
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 par...
| Main Authors: | , , |
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| Format: | Journal article |
| Language: | English |
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2001
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| _version_ | 1826291441192665088 |
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| author | Controzzi, D Essler, F Tsvelik, A |
| author_facet | Controzzi, D Essler, F Tsvelik, A |
| author_sort | Controzzi, D |
| collection | OXFORD |
| description | 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. |
| first_indexed | 2024-03-07T02:59:25Z |
| format | Journal article |
| id | oxford-uuid:b070935b-bd66-43ec-aaf4-2d07e68b79cc |
| institution | University of Oxford |
| language | English |
| last_indexed | 2024-03-07T02:59:25Z |
| publishDate | 2001 |
| record_format | dspace |
| spelling | oxford-uuid:b070935b-bd66-43ec-aaf4-2d07e68b79cc2022-03-27T03:56:29ZOptical conductivity of one-dimensional Mott insulators.Journal articlehttp://purl.org/coar/resource_type/c_dcae04bcuuid:b070935b-bd66-43ec-aaf4-2d07e68b79ccEnglishSymplectic Elements at Oxford2001Controzzi, DEssler, FTsvelik, AWe 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. |
| spellingShingle | Controzzi, D Essler, F Tsvelik, A Optical conductivity of one-dimensional Mott insulators. |
| title | Optical conductivity of one-dimensional Mott insulators. |
| title_full | Optical conductivity of one-dimensional Mott insulators. |
| title_fullStr | Optical conductivity of one-dimensional Mott insulators. |
| title_full_unstemmed | Optical conductivity of one-dimensional Mott insulators. |
| title_short | Optical conductivity of one-dimensional Mott insulators. |
| title_sort | optical conductivity of one dimensional mott insulators |
| work_keys_str_mv | AT controzzid opticalconductivityofonedimensionalmottinsulators AT esslerf opticalconductivityofonedimensionalmottinsulators AT tsvelika opticalconductivityofonedimensionalmottinsulators |