A local moment approach to the gapped Anderson model
We develop a non-perturbative local moment approach (LMA) for the gapped Anderson impurity model (GAIM), in which a locally correlated orbital is coupled to a host with a gapped density of states. Two distinct phases arise, separated by a level-crossing quantum phase transition: a screened singlet p...
| Main Authors: | , |
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| Format: | Journal article |
| Language: | English |
| Published: |
2008
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