冷极性分子晶体中的可调无序
Tunable disorder in a crystal of cold polar molecules
摘要：
在目前的工作中，我们证明了通过外场控制光晶格上分子的集体激发（激子）动力学的可能性。我们表明，适当选择的两种混合物的超冷极性分子装载在光晶格形成的声子晶体，激子杂质的相互作用可以通过施加外部电场控制。这一方法可用于超冷分子多体纠缠态的受控产生和量子粒子无序局域化和离域化的时域量子模拟。
英文摘要：
In the present work, we demonstrate the possibility of controlling by an external field the dynamics of collective excitations (excitons) of molecules on an optical lattice. We show that a suitably chosen two-species mixture of ultracold polar molecules loaded on an optical lattice forms a phononless crystal, where exciton-impurity interactions can be controlled by applying an external electric field. This can be used for the controlled creation of many-body entangled states of ultracold molecules and the time-domain quantum simulation of disorder-induced localization and delocalization of quantum particles.
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