Single Particle Excitation Spectrum of a Proximized Quantum Dot: The Flow Equation Study
M. Zapalska and T. Domański
Institute of Physics, M. Curie-Skłodowska University, pl. M. Curie-Skłodowskiej 1, 20-031 Lublin, Poland
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We study the in-gap states of a quantum dot hybridized with the metallic and superconducting reservoirs applying the continuous unitary transformation to the Anderson-type Hamiltonian. We derive the set of flow equations and analyse the effective single particle excitation spectrum of the correlated quantum dot in presence of the induced electron pairing.

DOI: 10.12693/APhysPolA.126.A-137
PACS numbers: 05.10.Cc, 71.27.+a, 72.15.Qm, 74.45.+c