论文标题
通过量子计算机的字符扩展的Gluon数字化
Gluon Digitization via Character Expansion for Quantum Computers
论文作者
论文摘要
量规理论的量子模拟需要有效的数字化。基于离散子组的方案使用较小的固定数量Qubit，以系统错误为代价。我们通过将连续的组动作与通过组字符扩展相匹配的单个plaquette动作来对这种方法进行系统化，从而使场波波动贡献进行模范。我们伴随着该方案，以纯量规模拟$ su（3）$的最大离散晶体样子组，直至耦合常数的第五阶。
Efficient digitization is required for quantum simulations of gauge theories. Schemes based on discrete subgroups use a smaller, fixed number of qubits at the cost of systematic errors. We systematize this approach by deriving the single plaquette action through matching the continuous group action to that of a discrete one via group character expansions modulo the field fluctuation contributions. We accompany this scheme by simulations of pure gauge over the largest discrete crystal-like subgroup of $SU(3)$ up to the fifth-order in the coupling constant.
