Imaging quasiparticle wave functions in quantum dots via tunneling spectroscopy
Abstract
We show that in quantum dots the physical quantities probed by local tunneling spectroscopies—namely, the quasiparticle wave functions of interacting electrons—can considerably deviate from their single-particle counterparts as an effect of Coulomb correlation. From the exact solution of the few-particle Hamiltonian for prototype dots, we find that such deviations are crucial to predict wave function images at low electron densities or high magnetic fields.
- Publication:
-
Physical Review B
- Pub Date:
- June 2005
- DOI:
- arXiv:
- arXiv:cond-mat/0408454
- Bibcode:
- 2005PhRvB..71w3106R
- Keywords:
-
- 73.21.La;
- 73.20.Qt;
- 73.23.Hk;
- 73.63.Kv;
- Quantum dots;
- Electron solids;
- Coulomb blockade;
- single-electron tunneling;
- Condensed Matter - Strongly Correlated Electrons;
- Condensed Matter - Mesoscopic Systems and Quantum Hall Effect
- E-Print:
- 5 pages, 2 b/w postscript figures, 1 table, RevTeX 4.0 style. One reference added, discussion of experiments expanded, other minor revisions