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cond-mat.str-el2000
Quantum spin ladder systems associated with su(2|2)
A. Foerster, K. E. Hibberd, J. R. Links +1
Two integrable quantum spin ladder systems will be introduced associated with the fundamental su(2|2) solution of the Yang-Baxter equation. The first model is a generalized quantum…
gr-qc2000
On the stress-energy tensor of a rotating wormhole
S. E. Perez Bergliaffa, K. E. Hibberd
We analyze the stress-energy tensor necessary to generate a general stationary and axisymmetric spacetime. The constraints on the geometry arising from considering a perfect fluid…