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quant-ph2012
The influence of the Kerr effect in Mott insulator to superfluid transition from the point of view of the Jaynes-Cummings-Hubbard model
C. B. Gomes, F. A. G. Almeida, A. M. C. Souza
We have studied the Jaynes-Cummings-Hubbard model for a chain with the Kerr effect (nonlinear optical effect) through fermionic approximation. We have observed that the Kerr effec…
quant-ph2009★ 17 cited
Thermal entanglement witness for materials with variable local spin lengths
Andre M. C. Souza, Francisco A. G. Almeida
We show that the thermal entanglement in a spin system using only magnetic susceptibility measurements is restricted to the insulator materials. We develop a generalization of the…