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摘要翻译：
我们考虑单位填充时莫特绝缘体和玻色-哈伯德模型超流区之间的边界。最初，两个区域都被解耦并冷却到各自的基态。我们发现，在两个区域之间打开一个小的隧道速率后，Mott区域的所有粒子都迁移到超流区。当两个区域的化学势之差小于超流体任何本征模的最大能量时，这种迁移就发生了。我们用DMRG数值模拟验证了我们的结果，并用主方程近似解析地解释了它们，发现两种方法之间有很好的一致性。最后，我们对微腔和光晶格耦合阵列中的效应进行了可行性研究。
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英文标题：
《Migration of bosonic particles across a Mott insulator to superfluid
phase interface》
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作者：
Michael J. Hartmann and Martin B. Plenio
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最新提交年份：
2008
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分类信息：
一级分类：Physics 物理学
二级分类：Strongly Correlated Electrons 强关联电子
分类描述：Quantum magnetism, non-Fermi liquids, spin liquids, quantum criticality, charge density waves, metal-insulator transitions
量子磁学，非费米液体，自旋液体，量子临界性，电荷密度波，金属-绝缘体跃迁
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一级分类：Physics 物理学
二级分类：Statistical Mechanics 统计力学
分类描述：Phase transitions, thermodynamics, field theory, non-equilibrium phenomena, renormalization group and scaling, integrable models, turbulence
相变，热力学，场论，非平衡现象，重整化群和标度，可积模型，湍流
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一级分类：Physics 物理学
二级分类：Quantum Physics 量子物理学
分类描述：Description coming soon
描述即将到来
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英文摘要：
We consider a boundary between a Mott insulator and a superfluid region of a Bose-Hubbard model at unit filling. Initially both regions are decoupled and cooled to their respective ground states. We show that, after switching on a small tunneling rate between both regions, all particles of the Mott region migrate to the superfluid area. This migration takes place whenever the difference between the chemical potentials of both regions is less than the maximal energy of any eigenmode of the superfluid. We verify our results numerically with DMRG simulations and explain them analytically with a master equation approximation, finding good agreement between both approaches. Finally we carry out a feasibility study for the observation of the effect in coupled arrays of micro-cavities and optical lattices.
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PDF链接：
https://arxiv.org/pdf/708.2667
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