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TT: Fachverband Tiefe Temperaturen

TT 80: Correlated Electrons: Poster

TT 80.57: Poster

Donnerstag, 21. März 2024, 15:00–18:00, Poster E

Application of the TraSPI Method to Aharonov-Bohm Interferometers with Interacting Quantum Dots. — •Alexander Hahn, Jürgen König, and Fred Hucht — Theoretische Physik, Universität Duisburg-Essen and CENIDE, 47048 Duisburg, Germany

Utilizing the “Transfer-matrix Summation of Path Integrals” (TraSPI) approach^[1], we extend the method’s application to the study of quantum transport in an Aharonov-Bohm interferometer accommodating two quantum dots. Here, the usage of the TraSPI method allows for the calculation of the current influenced by the enclosed magnetic flux and on-site Coulomb interactions. The numerical accuracy and efficiency of the TraSPI method allow for a detailed exploration of the interplay between quantum coherence and dot interactions.

[1] S. Mundinar, A. Hahn, J. König, and A. Hucht, Phys. Rev. B 106, 165427 (2022)

Keywords: quantum transport; non-equilibrium; numerically exact method; quantum dot