Erbe, B. and Schliemann, J. (2010) Unexpected systematic degeneracy in a system of two coupled Gaudin models with homogeneous couplings. JOURNAL OF PHYSICS A-MATHEMATICAL AND THEORETICAL, 43 (49): 492002. ISSN 1751-8113,
Full text not available from this repository. (Request a copy)Abstract
We report an unexpected systematic degeneracy between different multiplets in an inversion symmetric system of two coupled Gaudin models with homogeneous couplings, as occurring for example in the context of solid state quantum information processing. We construct the full degenerate subspace (being of macroscopic dimension), which turns out to lie in the kernel of the commutator between the two Gaudin models and the coupling term. Finally we investigate to what extent the degeneracy is related to the inversion symmetry of the system and find that indeed there is a large class of systems showing the same type of degeneracy.
| Item Type: | Article |
|---|---|
| Uncontrolled Keywords: | QUANTUM DOTS; COHERENT DYNAMICS; ELECTRON-SPIN; SPECTRUM; |
| Subjects: | 500 Science > 530 Physics |
| Divisions: | Physics > Institute of Theroretical Physics > Chair Professor Grifoni > Group John Schliemann |
| Depositing User: | Dr. Gernot Deinzer |
| Date Deposited: | 06 Jul 2020 06:05 |
| Last Modified: | 06 Jul 2020 06:05 |
| URI: | https://pred.uni-regensburg.de/id/eprint/23741 |
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