Publications by authors named "Yong Xi Cheng"
Article Synopsis
- The study calculates the local density of states (LDOS) in the asymmetric Anderson model using a specific numerical approach to understand its mixed valence behavior.
- It identifies that the asymmetric shape of the LDOS around the Fermi level results from the interference between single particle and Kondo resonances.
- The findings reveal a correlation between the Kondo temperatures, obtained from fitting data, and previous theories, as well as variations in Fano factors that align with expected Fano resonance patterns.
Long-range overlapping of Kondo clouds in open triple quantum dots.
J Phys Condens Matter
April 2019
We study the phenomena of overlapping of Kondo clouds in an open triple quantum dots (OTQDs) system by using the dissipaton equation of motion (DEOM) theory. Motivated by the long-rang interaction of the TQDs system demonstrated in Cheng et al (2017 Phys. Rev.
View Article and Find Full Text PDFBased on the hierarchical equations of motion approach, we study the time-dependent transport properties of a strongly correlated quantum dot system in the Kondo regime (KR), mixed valence regime (MVR), and empty orbital regime (EOR). We find that the transient current in KR shows the strongest nonlinear response and the most distinct oscillation behaviors. Both behaviors become weaker in MVR and diminish in EOR.
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