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Portrait of Stephanie Reimann

Stephanie Reimann

Professor

Portrait of Stephanie Reimann

Giant vortices in rotating electron droplets

Author

  • Esa Räsänen
  • Henri Saarikoski
  • Yongle Yu
  • Ari Harju
  • Martti Puska
  • Stephanie Reimann

Summary, in English

We predict the formation of giant vortices in quasi-two-dimensional quantum dots at high magnetic fields, i.e., in rapidly rotating electron droplets. Our numerical results for quantum dots confined by a flat, anharmonic potential show ground states where vortices are accumulated in the center of the dot, thereby leading to large cores in the electron and current densities. The phenomenon is analogous to what was recently found in rotating Bose-Einstein condensates. The giant-vortex states leave measurable signatures in the ground-state energetics. The conditions for the giant-vortex formation as well as the internal structure of the vortex cores are discussed.

Department/s

  • Mathematical Physics

Publishing year

2006

Language

English

Pages

235324-235330

Publication/Series

Physical Review B. Condensed Matter and Materials Physics

Volume

73

Issue

23

Document type

Journal article

Publisher

American Physical Society

Topic

  • Physical Sciences

Status

Published