Physics – Mathematical Physics
Scientific paper
2009-09-08
J.Stat.Mech.0912:P12003,2009
Physics
Mathematical Physics
30 pages; presentation modified to focus on new results, conjectures clarified, references and conclusion added
Scientific paper
10.1088/1742-5468/2009/12/P12003
We study the general L_0-regular gl(2) spin chain, i.e. a chain where the sites {i,i+L_0,i+2L_0,...} carry the same arbitrary representation (spin) of gl(2). The basic example of such chain is obtained for L_0=2, where we recover the alternating spin chain. Firstly, we review different known results about their integrability and their spectrum. Secondly, we give an interpretation in terms of particles and conjecture the scattering matrix between them.
Belliard Samuel
Crampe Nicolas
Ragoucy Eric
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