Inverse magneto-conductance design by automatic differentiation

ORAL

Abstract

Magneto-conductance in thin wires often exhibits complicated patterns due to the quantum interference of conduction electrons. These patterns reflect microscopic structures in the wires, such as defects or potential distributions. In this study, we propose an inverse design method to automatically generate a microscopic structure that exhibits desired magneto-conductance patterns. We numerically demonstrate that our method accurately generates defect positions in wires and can be effectively applied to various complicated patterns, such as the shape of the Colosseum and Nirvana. We also discuss techniques for designing structures that facilitate experimental investigation.

*This work was supported by the Center of Innovations for Sustainable Quantum AI (JST Grant No. JPMJPF2221), CREST(Nos. JPMJCR20C1, JPMJCR20T2) from JST, Japan; Grant-in-Aid for Scientific Research (S) (No. JP19H05600), Grant-in-Aid for Transformative Research Areas (No. JP22H05114), Grant-in-Aid for Early-Career Scientists (No. JP24K16985) from JSPS KAKENHI, Japan.

Publication: arXiv:2409.02009

Presenters

  • Koji Inui

    • The University of Tokyo

Authors

  • Koji Inui

    • The University of Tokyo
  • Yuta Hirasaki

    • University of Illinois, Urbana-Champaign
  • Eiji Saitoh

    • The University of Tokyo
    • Univ of Tokyo