2013/08/31 by Iurii Chernii, Ivan P. Levkivskyi, Eugene V. Sukhorukov · 14 citations
Physics and Astronomy · #Charge (physics) #Condensed matter physics #Coupling (piping) #Materials science #Non-equilibrium thermodynamics #Phase transition #Physics #Physics of Superconductivity and Magnetism #Quantum and electron transport phenomena #Quantum mechanics #Quantum tunnelling #Resonance (particle physics) #Singularity #Spectroscopy and Quantum Chemical Studies #Symmetry (geometry) #cond-mat.mes-hall
paper · pdf · doi:10.1103/physrevb.90.245123
published in Physical Review B 90(24) (American Physical Society) · New and improved final journal version
arxiv created 2014/12/15 · openalex publication_date 2014/12/15 · arxiv updated 2014/12/17 · openalex created_date 2025/10/10 · openalex updated_date 2026/08/05
We study the effects of strong coupling of a localized state charge to one-dimensional electronic channels out of equilibrium. While the state of this charge and the coupling strengths determine the scattering phase shifts in the channels, the nonequilibrium partitioning noise induces the tunneling transitions to the localized state. The strong coupling leads to a nonperturbative backaction effect which is manifested in the orthogonality catastrophe and the Fermi-edge singularity in the transition rates. We predict an unusually pronounced manifestation of the non-Gaussian component of noise that breaks the charge symmetry, resulting in a nontrivial shape, and a shift of the position of the tunneling resonance.