Spin-chain with PSU(2|2)⊗U(1)3 and non-linear σ-model with D(2,1;γ)
We propose that the spin-chain with the PSU(2|2)⊗U(1)3 symmetry is equivalent to the non-linear σ-model on PSU(2|2)⊗U(1)3/{H⊗U(1)} with a certain subgroup H. To this end we show that the spin-variable of the former theory is identified as the Killing scalar of the latter and their correlation functi...
| Main Authors: | , |
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| Format: | Article |
| Language: | English |
| Published: |
Elsevier
2015-04-01
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| Series: | Physics Letters B |
| Online Access: | http://www.sciencedirect.com/science/article/pii/S0370269315001690 |