论文标题
探索使用量子计算的多味schwinger模型的相结构
Exploring the phase structure of the multi-flavor Schwinger model with quantum computing
论文作者
论文摘要
我们提出了一个适用于在具有化学势的情况下探索多味schwinger模型的相结构的变异量子质量。我们设计的参数ANSATZ电路能够结合某些参数制度中的模型对称性，从而可以大大减少变异参数的数量。此外，可以在基于测量的量子硬件和基于电路的量子硬件上实现ANSATZ电路。我们从数值上证明我们的ANSATZ电路能够捕获模型的相结构，并允许忠实地近似地面状态。我们的结果表明，我们的方法适用于当前的中级量子硬件，并且可以在现有的量子设备上容易实现。
We propose a variational quantum eigensolver suitable for exploring the phase structure of the multi-flavor Schwinger model in the presence of a chemical potential. The parametric ansatz circuit we design is capable of incorporating the symmetries of the model, present in certain parameter regimes, which allows for reducing the number of variational parameters substantially. Moreover, the ansatz circuit can be implementated on both measurement-based and circuit-based quantum hardware. We numerically demonstrate that our ansatz circuit is able to capture the phase structure of the model and allows for faithfully approximating the ground state. Our results show that our approach is suitable for current intermediate-scale quantum hardware and can be readily implemented on existing quantum devices.
