量子拓扑光子泵的实现
Realization of a Quantum Topological Photon Pump
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中文总结 AI 辅助
研究实现了量子拓扑光子泵，利用transmon量子比特耦合微波腔完成实验，首次观测到该泵在量子区域从真空态泵浦出约7个光子并产生非经典腔态。
中文摘要 AI 辅助
拓扑泵以仅由能带拓扑决定的量化速率转移电荷或能量，与控制场细节无关。基于该原理的光子泵可在控制存在缺陷时，仍在量子腔中稳健制备非经典态，但尚未被直接观测到。我们利用耦合到微波腔的transmon量子比特，首次实验观测到拓扑光子泵，该泵工作在量子区域，从真空态泵浦出约7个光子，且在最初几个循环中产生明显的非经典腔态。
英文摘要
Topological pumps transfer charge or energy at quantized rates determined solely by band topology, independent of the details of the control fields. Photon pumps operating on this principle could enable the robust preparation of non-classical states in a quantum cavity, even in the presence of control imperfections, but have not been directly observed. We present the first experimental observation of a topological photon pump, using a transmon qubit coupled to a microwave cavity. The pump operates in the quantum regime, pumping up from the vacuum state up to $\approx 7$ photons, and produces demonstrably non-classical cavity states for the first few cycles.
