Variational solution of the superconducting Anderson impurity model and the band-edge singularity phenomena
We propose a set of variational wavefunctions for the sub-gap spin-doublet and spin-singlet eigenstates of the particle-hole symmetric superconducting Anderson impurity model. The wavefunctions include up to two Bogoliubov quasiparticles in the continuum which is necessary to correctly capture the w...
| Published in: | SciPost Physics |
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| Main Author: | |
| Format: | Article |
| Language: | English |
| Published: |
SciPost
2025-07-01
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| Online Access: | https://scipost.org/SciPostPhys.19.1.006 |