物理学报2025，Vol.74Issue(8)：112-120,9.DOI:10.7498/aps.74.20250021
人工规范场调控下的单光子散射
Single-photon scattering under control of artificial gauge field
摘要
Abstract
The mechanism of controlling single-photon scattering in a hybrid system consisting of superconducting qubits coupled to a Su-Schrieffer-Heeger(SSH)topological photonic lattice is investigated under the influence of an artificial gauge field.This research is driven by the growing interest in the intersection between quantum optics and condensed matter physics,particularly in the field of topological quantum optics,where the robustness of photon transport against defects and impurities can be used for quantum information processing.To achieve this,a theoretical model,which incorporates the phase of the artificial gauge field into the coupling between superconducting qubits and the SSH photonic lattice,is developed in this work.The analytical expressions for the reflection and transmission amplitudes of single photons are derived by using the probability-amplitude method.The results show that the artificial gauge field can effectively control single photon scattering in both the upper energy band and the lower energy band of the SSH lattice,thereby enabling total transmission in the upper band and total reflection in the lower band.This band-dependent scattering behavior exhibits a high degree of symmetry with respect to the lattice momentum and energy bands.Importantly,the reflection coefficient can be made independent of the lattice coupling strength and dependent solely on the topological properties of the lattice.This finding suggests a robust method of detecting topological invariants in photonic lattices.Furthermore,our analysis is extended to various coupling configurations between superconducting qubits and the photonic lattice,highlighting the versatility of the artificial gauge field in manipulating photon transport.These findings not only provide new insights into the control of photon transport in topological photonic lattices,but also open the door to the development of novel quantum optical devices and robust quantum information processing platforms.关键词
单光子散射/超导比特/拓扑Key words
single-photon scattering/superconducting qubits/topology引用本文复制引用
汪润婷,王旭东,梅锋,肖连团,贾锁堂..人工规范场调控下的单光子散射[J].物理学报,2025,74(8):112-120,9.基金项目
国家自然科学基金重点项目(批准号:12034012,12474361)资助的课题. Project supported by the Key Program of the National Natural Science Foundation of China(Grant Nos.12034012,12474361). （批准号:12034012,12474361）
