Mott Insulator to Superfluid Phase Transition in Bravais Lattices via the Jaynes-Cummings-Hubbard Model
Mott Insulator to Superfluid Phase Transition in Bravais Lattices via the Jaynes-Cummings-Hubbard Model
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DOI：
10.5506/aphyspolb.46.1239
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发表时间：
2012-11
期刊：
影响因子：
--
通讯作者：
C. B. Gomes;A. M. Souza;F. Almeida
中科院分区：
文献类型：
--
作者：
C. B. Gomes;A. M. Souza;F. Almeida
在Jaynes-Cummings-Hubbard模型中，通过费米子近似，得到了线性、正方形、SC、FCC和BCC Bravais晶格上Mott绝缘体到超流相变的性质。对于不同的激发数和原子腔频率失谐。我们发现，莫特波瓣和临界跳跃是不可扩展的，只有FCC晶格。在大激发数区域，临界跳跃对于所有晶格都是可伸缩的，并且它不依赖于失谐量。
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.