arXivDaily arXiv每日学术速递 周一至周五更新
arXiv 1702.04859quant-phphysics.atom-phphysics.chem-phphysics.optics
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离子阱中分子光谱的量子模拟

Quantum simulation of molecular spectroscopy in trapped-ion device

Yangchao Shen, Joonsuk Huh, Yao Lu, Junhua Zhang, Kuan Zhang, Shuaining Zhang, Kihwan Kim

摘要:

由于分子的复杂性和量子性质的涌现作用,分子是量子计算机模拟要求最高的量子系统。Huh等人(Nature Photon.,9,615(2015))表明,具有高斯输入状态的多光子网络可以模拟分子光谱过程。在这里,我们报告的第一个实验演示的分子振动光谱的SO $_{2}$与捕获离子系统。在我们的实现中,分子散射操作被分解为一系列基本的量子光学操作,这是通过拉曼激光束实现的,导致多模高斯(Bogoliubov)变换。分子光谱信号的重建从集体投影测量声子模式的捕获离子系统。我们的实验演示将为大规模分子量子模拟铺平道路,这是经典的棘手。

英文摘要:

Molecules are the most demanding quantum systems to be simulated by quantum computers because of their complexity and the emergent role of quantum nature. The recent theoretical proposal of Huh et al. (Nature Photon., 9, 615 (2015)) showed that a multi-photon network with a Gaussian input state can simulate a molecular spectroscopic process. Here, we report the first experimental demonstration of molecular vibrational spectroscopy of SO$_{2}$ with a trapped-ion system. In our realization, the molecular scattering operation is decomposed to a series of elementary quantum optical operations, which are implemented through Raman laser beams, resulting in a multimode Gaussian (Bogoliubov) transformation. The molecular spectroscopic signal is reconstructed from the collective projection measurements on phonon modes of the trapped-ion system. Our experimental demonstration would pave the way to large-scale molecular quantum simulations, which are classically intractable.

机构、总结、中文摘要均由AI分析而来,可能存在错误,请以论文正文为准。

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