论文标题
在超导量子计算机上模拟地基和动态量子相变
Simulating groundstate and dynamical quantum phase transitions on a superconducting quantum computer
论文作者
论文摘要
我们在超导量子设备上优化了一个不变的，顺序的量子电路，以通过其量子临界点模拟量子ISING模型的地面。我们进一步证明了如何模拟该模型在其量子临界点的淬火中发现的动力学量子临界点。我们的方法通过使用灵感来自无限基质产品状态的顺序量子电路来避免有限尺寸的缩放效果。我们提供有效的电路和各种减轻错误策略来实施，优化和时间进化这些状态。
We optimise a translationally invariant, sequential quantum circuit on a superconducting quantum device to simulate the groundstate of the quantum Ising model through its quantum critical point. We further demonstrate how the dynamical quantum critical point found in quenches of this model across its quantum critical point can be simulated. Our approach avoids finite-size scaling effects by using sequential quantum circuits inspired by infinite matrix product states. We provide efficient circuits and a variety of error mitigation strategies to implement, optimise and time-evolve these states.
