MOTT INSULATOR TO SUPERFLUID PHASE TRANSITION IN BRAVAIS LATTICES VIA THE JAYNES-CUMMINGS-HUBBARD MODEL

作者:Gomes Clelio B C*; Almeida Francisco A G; Souza Andre M C
来源:Acta Physica Polonica B, 2015, 46(6): 1239-1246.
DOI:10.5506/APhysPolB.46.1239

摘要

The properties of the Mott insulator to superfluid phase transition are obtained through the fermionic approximation in the Jaynes-Cummings-Hubbard model on linear, square, SC, FCC, and BCC Bravais lattices, for varying excitation number and atom-cavity frequency detuning. We find that the Mott lobes and the critical hopping are not scalable only for the FCC lattice. At the large excitation number regime, the critical hopping is scalable for all the lattices and it does not depend on the detuning.

  • 出版日期2015-6

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