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Structure of the string R-matrix

Torrielli, A (2009) Structure of the string R-matrix JOURNAL OF PHYSICS A-MATHEMATICAL AND THEORETICAL, 42 (5). 055204 - ?. ISSN 1751-8113

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Abstract

By requiring invariance directly under the Yangian symmetry, we rederive Beisert’s quantum R-matrix, in a form that carries explicit dependence on the representation labels, the braiding factors, and the spectral parameters ui. In this way, we demonstrate that there exist a rewriting of its entries, such that the dependence on the spectral parameters is purely of difference form. Namely, the latter enter only in the combination u1−u2, as indicated by the shift automorphism of the Yangian. When recasted in this fashion, the entries exhibit a cleaner structure, which allows to spot new interesting relations among them. This permits to package them into a practical tensorial expression, where the non-diagonal entries are taken care by explicit combinations of symmetry algebra generators.

Item Type: Article
Additional Information: Copyright 2009 Institute of Physics. This is the author's accepted manuscript.
Uncontrolled Keywords: Science & Technology, Physical Sciences, Physics, Multidisciplinary, Physics, Mathematical, Physics, ADS(5) X S-5, SUPER-YANG-MILLS, SIMPLE LIE-SUPERALGEBRAS, BETHE-ANSATZ, N=4 SYM, GIANT MAGNONS, S-MATRIX, DILATATION OPERATOR, BAXTER EQUATIONS, BOUND-STATES
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Divisions: Faculty of Engineering and Physical Sciences > Mathematics
Depositing User: Symplectic Elements
Date Deposited: 12 Jan 2012 14:15
Last Modified: 23 Sep 2013 18:57
URI: http://epubs.surrey.ac.uk/id/eprint/72396

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