在NMR量子计算机上实现对模型的量子模拟
Proposal of Quantum Simulation of Pairing Model on an NMR Quantum Computer
摘要：
提出了一种在NMR量子计算机上对配对模型进行量子模拟的方案。在我们的建议中，我们选择了一个合适的初始状态，可以很容易地在实验中制备。利用核磁共振测量的特点和二次（离散）傅立叶变换技术，我们的理论方案在原理上可以得到配对模型的谱。具体讨论了配对模型中有关子空间的情况，并以一个简单的初始态为例，求出了该子空间中两个最低能级的能级差。类似地，能够讨论获得更多能级差异的量子模拟。
英文摘要：
We give out a proposal of quantum simulation of pairing model on an NMR quantum computer. In our proposal, we choose an appropriate initial state which can be easily prepared in experiment. Making use of feature of NMR measure and the technology of the second (discrete) Fourier transformation, our theoretical scheme can obtain the spectrum of paring model in principle. We concretely discuss the case in the concerned subspaces of pairing model and then, as an example, give out a simple initial state to get the gap of two the lowest energy levels in the given subspace. The quantum simulation to get more differences of energy levels is able to be discussed similarly.
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