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Unexpected systematic degeneracy in a system of two coupled Gaudin models with homogeneous couplings

Erbe, Björn and Schliemann, John (2010) Unexpected systematic degeneracy in a system of two coupled Gaudin models with homogeneous couplings. J. Phys. A: Mathematical and Theoretical 43 (49), p. 2002.

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Other URL: http://iopscience.iop.org/1751-8121/43/49/492002/refs


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 ...

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Item Type:Article
Date:2010
Institutions:Physics > Institute of Theroretical Physics > Chair Professor Grifoni > Group John Schliemann
Projects:SFB 631: Festkörperbasierte Quanteninformationsverarbeitung
Subjects:500 Science > 530 Physics
Status:Published
Refereed:Yes, this version has been refereed
Created at the University of Regensburg:Yes
Owner: Webmaster Grifoni
Deposited On:26 May 2011 07:32
Last Modified:13 Mar 2014 17:25
Item ID:20991
Owner Only: item control page
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