Two-channel Kondo physics in two-impurity Kondo models.
We consider the non-Fermi-liquid quantum critical state of the spin-S two-impurity Kondo model and its potential realization in a quantum dot device. Using conformal field theory and the numerical renormalization group, we show the critical point to be identical to that of the two-channel Kondo mode...
| Main Authors: | , , |
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| Format: | Journal article |
| Language: | English |
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2012
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| _version_ | 1826259707555217408 |
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| author | Mitchell, A Sela, E Logan, D |
| author_facet | Mitchell, A Sela, E Logan, D |
| author_sort | Mitchell, A |
| collection | OXFORD |
| description | We consider the non-Fermi-liquid quantum critical state of the spin-S two-impurity Kondo model and its potential realization in a quantum dot device. Using conformal field theory and the numerical renormalization group, we show the critical point to be identical to that of the two-channel Kondo model with additional potential scattering, for any spin S. Distinct conductance signatures are shown to arise as a function of device asymmetry, with the square-root behavior commonly believed to arise at low-energies dominant only in certain regimes. |
| first_indexed | 2024-03-06T18:54:03Z |
| format | Journal article |
| id | oxford-uuid:11368d62-3592-47f1-b1e1-44c2a4ffb3ae |
| institution | University of Oxford |
| language | English |
| last_indexed | 2024-03-06T18:54:03Z |
| publishDate | 2012 |
| record_format | dspace |
| spelling | oxford-uuid:11368d62-3592-47f1-b1e1-44c2a4ffb3ae2022-03-26T10:01:03ZTwo-channel Kondo physics in two-impurity Kondo models.Journal articlehttp://purl.org/coar/resource_type/c_dcae04bcuuid:11368d62-3592-47f1-b1e1-44c2a4ffb3aeEnglishSymplectic Elements at Oxford2012Mitchell, ASela, ELogan, DWe consider the non-Fermi-liquid quantum critical state of the spin-S two-impurity Kondo model and its potential realization in a quantum dot device. Using conformal field theory and the numerical renormalization group, we show the critical point to be identical to that of the two-channel Kondo model with additional potential scattering, for any spin S. Distinct conductance signatures are shown to arise as a function of device asymmetry, with the square-root behavior commonly believed to arise at low-energies dominant only in certain regimes. |
| spellingShingle | Mitchell, A Sela, E Logan, D Two-channel Kondo physics in two-impurity Kondo models. |
| title | Two-channel Kondo physics in two-impurity Kondo models. |
| title_full | Two-channel Kondo physics in two-impurity Kondo models. |
| title_fullStr | Two-channel Kondo physics in two-impurity Kondo models. |
| title_full_unstemmed | Two-channel Kondo physics in two-impurity Kondo models. |
| title_short | Two-channel Kondo physics in two-impurity Kondo models. |
| title_sort | two channel kondo physics in two impurity kondo models |
| work_keys_str_mv | AT mitchella twochannelkondophysicsintwoimpuritykondomodels AT selae twochannelkondophysicsintwoimpuritykondomodels AT logand twochannelkondophysicsintwoimpuritykondomodels |