论文标题
在可编程超导处理器上实现两Qutrit量子算法
Realization of two-qutrit quantum algorithms on a programmable superconducting processor
论文作者
论文摘要
使用量子三级系统或QUTRIT作为基本单元来处理量子信息是当代基于Qubit的架构的替代方法，具有提供显着的计算优势的潜力。我们通过利用两个传输的第三能量特征态来证明完全可编程的两Qutrit量子处理器。我们开发了一个参数耦合器，以在九维希尔伯特空间中实现出色的连通性，从而有效实现了两Qutrit大门。我们通过实现多种算法，例如Deutsch-Jozsa，Bernstein-Vazirani和Grover的搜索来表征我们的处理器。我们有效的无actilla协议使我们可以证明，格罗弗放大的两个阶段可以提高量子优势的非结构化搜索的成功率。我们的结果为使用Transmons作为通用量子计算机的构建块构建完全可编程的三元量子处理器铺平了道路。
Processing quantum information using quantum three-level systems or qutrits as the fundamental unit is an alternative to contemporary qubit-based architectures with the potential to provide significant computational advantages. We demonstrate a fully programmable two-qutrit quantum processor by utilizing the third energy eigenstates of two transmons. We develop a parametric coupler to achieve excellent connectivity in the nine-dimensional Hilbert space enabling efficient implementations of two-qutrit gates. We characterize our processor by realizing several algorithms like Deutsch-Jozsa, Bernstein-Vazirani, and Grover's search. Our efficient ancilla-free protocols allow us to show that two stages of Grover's amplification can improve the success rates of an unstructured search with quantum advantage. Our results pave the way for building fully programmable ternary quantum processors using transmons as building blocks for a universal quantum computer.
