论文标题
用固定频率的transmon Qubits模拟量子模拟
Analogue Quantum Simulation with Fixed-Frequency Transmon Qubits
论文作者
论文摘要
我们通过实验评估具有固定频率的跨矩矩形和固定相互作用的适用性，以实现自旋系统的模拟量子模拟。我们使用完整的量子过程断层扫描和更有效的哈密顿层造影术在商业量子处理器上测试了该目标的一组必要标准。低振幅处的显着单量子误差被确定为一个限制因素，以阻止当前可用设备的模拟模拟实现。我们还发现，在没有驱动脉冲的情况下，我们发现了虚假的动态，我们可以通过量子和低维环境之间的连贯耦合来识别。随着适度的改进，可能有可能对一系列时间依赖的多体旋转汉顿人的模拟模拟。
We experimentally assess the suitability of transmon qubits with fixed frequencies and fixed interactions for the realization of analogue quantum simulations of spin systems. We test a set of necessary criteria for this goal on a commercial quantum processor using full quantum process tomography and more efficient Hamiltonian tomography. Significant single qubit errors at low amplitudes are identified as a limiting factor preventing the realization of analogue simulations on currently available devices. We additionally find spurious dynamics in the absence of drive pulses, which we identify with coherent coupling between the qubit and a low dimensional environment. With moderate improvements, analogue simulation of a rich family of time-dependent many-body spin Hamiltonians may be possible.
