Dresden 2020 – scientific programme
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TT: Fachverband Tiefe Temperaturen
TT 22: Quantum Dots, Quantum Wires, Point Contacts
TT 22.14: Talk
Tuesday, March 17, 2020, 13:00–13:15, HSZ 201
Extended quasiparticle picture for quantum wires in the high-density limit — •Klaus Morawetz1,2, Vinod Ashokan3, Renu Bala4, and Kare Narain Pathak5 — 1Münster University of Applied Sciences,Stegerwaldstrasse 39, 48565 Steinfurt, Germany — 2International Institute of Physics- UFRN,Campus Universitário Lagoa nova,59078-970 Natal, Brazil — 3Department of Physics, Dr. B.R. Ambedkar NationalInstitute of Technology, Jalandhar (Punjab) - 144 011, India — 4Centre for Advanced Study in Physics, Panjab University, 160014 Chandigarh, India — 5Department of Physics, MCM DAV College for Women, 160036 Chandigarh, India
The high-density limit of quantum wires are considered and an extended quasiparticle picture is developed. This allows to calculate the reduced density, the pair correlation function and the effective mass. A non-universal behaviour of the Tan constant is reported for the Coulomb limit. The structure factor is obtained analytically which provides the exact correlation energy. [Eur. Phys. J. B 91 (2018) 29, Phys. Rev. B 97 (2018) 155147, arXiv:1909.09331]