论文标题
使用对称的投影运算符基础降低量子模拟中的层析成本成本
Lowering Tomography Costs in Quantum Simulation with a Symmetry Projected Operator Basis
论文作者
论文摘要
量子模拟中的测量提供了一种从复杂的量子状态中提取有意义信息的方法，而对于量子计算，降低测量的复杂性对于近期应用至关重要。对于大多数量子模拟，目标状态将遵守哈密顿系统固有的许多对称性。我们获得了一个替代对称性的测量基础，可减少所需的测量数量。我们的计划可以在量子计算机上无需额外的费用，可以在各种测量或断层扫描方案下实施，并且在噪声下相当有弹性。
Measurement in quantum simulations provides a means for extracting meaningful information from a complex quantum state, and for quantum computing reducing the complexity of measurement will be vital for near-term applications. For most quantum simulations, the targeted state will obey a number of symmetries inherent to the system Hamiltonian. We obtain a alternative symmetry projected basis of measurement that reduces the number of measurements needed. Our scheme can be implemented at no additional cost on a quantum computer, can be implemented under a variety of measurement or tomography schemes, and is fairly resilient under noise.
