The browser you are using is not supported by this website. All versions of Internet Explorer are no longer supported, either by us or Microsoft (read more here: https://www.microsoft.com/en-us/microsoft-365/windows/end-of-ie-support).

Please use a modern browser to fully experience our website, such as the newest versions of Edge, Chrome, Firefox or Safari etc.

Portrait of Stephanie Reimann

Stephanie Reimann

Professor

Portrait of Stephanie Reimann

Stability of vortex structures in quantum dots

Author

  • H Saarikoski
  • Stephanie Reimann
  • E Rasanen
  • A Harju
  • M J Puska

Summary, in English

We study the stability and structure of vortices emerging in two-dimensional quantum dots in high magnetic fields. Our results obtained with exact diagonalization and density-functional calculations show that vortex structures can be found in various confining potentials. In nonsymmetric external potentials we find off-electron vortices that are localized giving rise to charge deficiency or holes in the electron density with rotating currents around them. We discuss the role of quantum fluctuations and show that vortex formation is observable in the energetics of the system. Our findings suggest that vortices can be used to characterize the solutions in high magnetic fields, giving insight into the underlying internal structure of the electronic wave function.

Department/s

  • Mathematical Physics

Publishing year

2005

Language

English

Publication/Series

Physical Review B (Condensed Matter and Materials Physics)

Volume

71

Issue

3

Document type

Journal article

Publisher

American Physical Society

Topic

  • Physical Sciences

Status

Published

ISBN/ISSN/Other

  • ISSN: 1098-0121