论文标题
部分可观测时空混沌系统的无模型预测
Quantum computing of the pairing Hamiltonian at finite temperatures
论文作者
论文摘要
在这项工作中，我们在量子模拟器和超导量子计算机上研究了在有限温度下的四个颗粒配对的哈密顿量。激发态是通过变异量子通气（VQD）获得的。使用误差方法来改善嘈杂的结果。热激发状态的模拟使用与零温度相同的变异电路进行。量子计算的结果在高温下与精确的溶液接近，并证明了平滑的超流体正常相变，这是有限系统中预期的温度的函数。
In this work, we study the pairing Hamiltonian with four particles at finite temperatures on a quantum simulator and a superconducting quantum computer. The excited states are obtained by the variational quantum deflation (VQD). The error-mitigation methods are applied to improve the noisy results. The simulation of thermal excitation states is performed using the same variational circuit as at zero temperature. The results from quantum computing become close to exact solutions at high temperatures, and demonstrate a smooth superfluid-normal phase transition as a function of temperatures as expected in finite systems.
