• Corpus ID: 250491941

A pseudo-fermion method for the exact description of fermionic environments: from single-molecule electronics to Kondo resonance

@inproceedings{Cirio2022APM,
  title={A pseudo-fermion method for the exact description of fermionic environments: from single-molecule electronics to Kondo resonance},
  author={Mauro Cirio and Neill Lambert and Po-Chen Kuo and Yueh-Nan Chen and Paul Menczel and Ken Funo and Franco Nori},
  year={2022}
}
We develop a discrete fermion approach for modelling the strong interaction of an arbitrary system interacting with continuum electronic reservoirs. The approach is based on a pseudo-fermion decomposition of the continuum bath correlation functions, and is only limited by the accuracy of this decomposition. We show that to obtain this decomposition one can allow for imaginary pseudo-fermion parameters, and strong damping in individual pseudo-fermions, without introducing unwanted approximations… 

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