2018/06/28 by Chengyu Yan, Sanjeev Kumar, M. Pepper +9 · 3 citations
Computer Science · Engineering · Physics and Astronomy · #Anomaly (physics) #Condensed matter physics #Conductance #Coupling (piping) #Electrical resistivity and conductivity #Kondo effect #Materials science #Mesoscopic physics #Molecular Junctions and Nanostructures #Physics #Quantum #Quantum Information and Cryptography #Quantum and electron transport phenomena #Quantum mechanics #Singlet state #cond-mat.mes-hall
paper · pdf · doi:10.1103/physrevb.97.241302
published in Physical review. B./Physical review. B 97(24) (American Physical Society)
arxiv created 2018/06/28 · openalex publication_date 2018/06/29 · arxiv updated 2018/07/04 · openalex created_date 2025/10/10 · openalex updated_date 2026/08/05
In the present Rapid Communication, we provide an easily accessible way to achieve the singlet-triplet Kondo effect in a hybrid system consisting of a quantum point contact (QPC) coupled to an electronic cavity. We show that by activating the coupling between the QPC and cavity, a zero-bias anomaly occurs in a low conductance regime, a coexistence of a zero-bias and finite-bias anomaly (FBA) in a medium conductance regime, and a FBA-only anomaly in a high conductance regime. The latter two observations are due to the singlet-triplet Kondo effect.