Quantum criticality in the pseudogap Bose-Fermi Anderson and Kondo models: Interplay between fermion- and boson-induced Kondo destruction

@article{Pixley2013QuantumCI,
  title={Quantum criticality in the pseudogap Bose-Fermi Anderson and Kondo models: Interplay between fermion- and boson-induced Kondo destruction},
  author={J. Pixley and S. Kirchner and K. Ingersent and Q. Si},
  journal={Physical Review B},
  year={2013},
  volume={88},
  pages={1-15}
}
  • J. Pixley, S. Kirchner, +1 author Q. Si
  • Published 2013
  • Physics
  • Physical Review B
  • We address the phenomenon of critical Kondo destruction in pseudogap Bose-Fermi Anderson and Kondo quantum impurity models. These models describe a localized level coupled both to a fermionic bath having a density of states that vanishes like ${|\ensuremath{\epsilon}|}^{r}$ at the Fermi energy ($\ensuremath{\epsilon}=0$) and, via one component of the impurity spin, to a bosonic bath having a sub-Ohmic spectral density proportional to ${|\ensuremath{\omega}|}^{s}$. Each bath is capable by itself… CONTINUE READING
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