多质点体系：原子，耦合振子，周期晶格。

Many Particle Systems: Atoms, Coupled Oscillators, Periodic Lattice.

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在周期势阱中研究这个系统，发现相干光产生光学晶格能够使原子具有了金属中的自由离子的性质，尽管看起来截然不同。

Trapping these systems in periodic potential wells made by intersecting light beams yields optical lattices in which atoms behave as electrons in metals, albeit at a quite different scale.

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而对于具有4%晶格失配的超晶格模拟结果却表明，超晶格导热系数随周期长度的增大而单调上升。

However, the simulation results of the superlattice with 4% lattice mismatch show that the thermal conductivity increases monotonically with the period length.

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