Supersymmetric Hamiltonian approach to edge excitations in ν=5/2 fractional quantum Hall effect
Abstract
A supersymmetric Hamiltonian is constructed for the edge excitations of the Moore-Read (Pfaffian) like state, which is a realization of the N=2 supersymmetric CS model. Fermionic generators and their conjugates are introduced to deal with the fermion pairing, whose condensation form a BCS like state. After Bogoliubov transformation, an N=2 supersymmetric and nonrelativistic Hamiltonian is found to take a known form, which is integrable. The main difference between the Moore-Read state and our BCS like state is that the number of fermion pairs in our formalism is not fixed. However, we have also found that the excited states in our model looks similar but not exactly the same as Moore and Read's.
- Publication:
-
Nuclear Physics B
- Pub Date:
- August 2008
- DOI:
- 10.1016/j.nuclphysb.2007.10.030
- arXiv:
- arXiv:0706.1338
- Bibcode:
- 2008NuPhB.798..323Y
- Keywords:
-
- 71.10.-w;
- 73.20.-r;
- 73.43.-f;
- Theories and models of many-electron systems;
- Electron states at surfaces and interfaces;
- Quantum Hall effects;
- High Energy Physics - Theory;
- Condensed Matter - Mesoscopic Systems and Quantum Hall Effect
- E-Print:
- 22 pages, Corrected typos, discussions on the integrability, note added