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Berry phase and spin precession without magnetic fields in semiconductor quantum dots

  • Sanjay PrabhakarEmail author
  • Roderick Melnik
Regular Article
  • 33 Downloads

Abstract

We investigate electric field control of spin manipulation through Berry phase in III-V semiconductor quantum dots. By utilizing degenerate and non-degenerate perturbation theories, we diagonalize the total Hamiltonian of a semiconductor quantum dot and express the solution of time dependent Schrödinger equation in terms of complete and incomplete elliptic integrals of the second kind, respectively. This allows us to investigate the interplay between the Rashba and Dresselhaus spin-orbit couplings. In particular, we provide theoretical descriptions of several novel properties focusing on spin manipulation through (a) Berry phase, (b) geometric phase and (c) spin echo phenomenon followed by a strong beating patterns during the adiabatic transport of the quantum dots.

Graphical abstract

Keywords

Solid State and Materials 

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Copyright information

© EDP Sciences / Società Italiana di Fisica / Springer-Verlag GmbH Germany, part of Springer Nature 2019

Authors and Affiliations

  1. 1.Department of Natural SciencesGordon State CollegeBarnesvilleUSA
  2. 2.The MS2Discovery Interdisciplinary Research Institute, M2NeT Laboratory, Wilfrid Laurier UniversityWaterlooCanada
  3. 3.BCAMBilbaoSpain

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