时空Bloch波的广义加速定理
Generalized acceleration theorem for spatiotemporal Bloch waves
摘要：
基于对同时具有空间和时间周期性的类布洛赫态的展开，提出了周期晶格势中量子粒子在均匀时间周期强迫下的波函数的一种表示.它表明，存在着一个推广布洛赫著名的加速定理，增长出这种表示和捕获的效果，除了一个强大的敷料力施加一个弱的探针力。总之，这些元素指向相干波包操纵的“修饰和探测”策略，这可以在目前的实验中用光晶格实现。
英文摘要：
A representation is put forward for wave functions of quantum particles in periodic lattice potentials subjected to homogeneous time-periodic forcing, based on an expansion with respect to Bloch-like states which embody both the spatial and the temporal periodicity. It is shown that there exists a generalization of Bloch's famous acceleration theorem which grows out of this representation and captures the effect of a weak probe force applied in addition to a strong dressing force. Taken together, these elements point at a "dressing and probing" strategy for coherent wave-packet manipulation, which could be implemented in present experiments with optical lattices.
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