Electron-hole duality and vortex rings in quantum dots

Details Electron-hole duality and vortex rings in quantum dots Electron-hole duality and vortex rings in quantum dots

2004-10-25

arxiv.org/abs/cond-mat/0410622v1

Phys. Rev. Lett. 94, 106405 (2005)

Physics

Condensed Matter

Mesoscale and Nanoscale Physics

8 pages 3 figures

Scientific paper

10.1103/PhysRevLett.94.106405

In a quantum-mechanical system, particle-hole duality implies that instead of studying particles, we can get equivalent information by studying the missing particles, the so-called holes. Using this duality picture for rotating fermion condensates the vortices appear as holes in the Fermi see. Here we predict that the formation of vortices in quantum dots at high magnetic fields causes oscillations in the energy spectrum which can be experimentally observed using accurate tunnelling spectroscopy. We use the duality picture to show that these oscillations are caused by the localisation of vortices in rings.

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