论文标题
多码控制门的线性深度量子电路
Linear-depth quantum circuits for multiqubit controlled gates
论文作者
论文摘要
量子电路深度最小化对于基于电路的量子计算的实际应用至关重要。在这项工作中，我们提出了一个系统的程序，以分解多Quipit控制的统一门，这在许多量子算法中至关重要，以控制量子电路深度与控制量子数的数量线性增加。我们的算法不需要任何辅助矩形，并且可以通过已知方法实现二次减少电路深度。我们通过IBM量子云平台上的原理实验证明了算法的优势。
Quantum circuit depth minimization is critical for practical applications of circuit-based quantum computation. In this work, we present a systematic procedure to decompose multiqubit controlled unitary gates, which is essential in many quantum algorithms, to controlled-NOT and single-qubit gates with which the quantum circuit depth only increases linearly with the number of control qubits. Our algorithm does not require any ancillary qubits and achieves a quadratic reduction of the circuit depth against known methods. We show the advantage of our algorithm with proof-of-principle experiments on the IBM quantum cloud platform.
