在光晶格中加载超冷原子时绝热性的破坏
Breakdown of adiabaticity when loading ultra-cold atoms in optical lattices
摘要：
对当前超冷原子在光晶格中实验的现实模拟表明，光晶格的斜升是显著非绝热的，这意味着实验制备的莫特绝缘体并不真正处于原子系统的基态。在模拟“无序”的二次准周期晶格的存在下，非绝热性甚至更大。替代斜升计划，建议提高绝热性时的障碍是不是太大。
英文摘要：
Realistic simulations of current ultra-cold atoms experiments in optical lattices show that the ramping up of the optical lattice is significantly nonadiabatic, implying that experimentally prepared Mott insulators are not really in the ground state of the atomic system. The nonadiabaticity is even larger in the presence of a secondary quasi-periodic lattice simulating "disorder". Alternative ramping schemes are suggested that improve the adiabaticity when the disorder is not too large.
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