终极片上量子放大器
Ultimate on-chip quantum amplifier
摘要：
本文研究了一维开放空间中单个人工原子对电磁波的放大。我们的三能级人造原子--一个超导量子线路--耦合到传输线上，模拟了开放空间中的自然原子。该系统是最基本的量子放大器，其增益受到自发发射机制的限制。噪声性能是由自发发射光谱中的量子噪声决定的，也是我们实验中表征的。
英文摘要：
We report amplification of electromagnetic waves by a single artificial atom in open 1D space. Our three-level artificial atom -- a superconducting quantum circuit -- coupled to a transmission line presents an analog of a natural atom in open space. The system is the most fundamental quantum amplifier whose gain is limited by a spontaneous emission mechanism. The noise performance is determined by the quantum noise revealed in the spectrum of spontaneous emission, also characterized in our experiments.
机构、总结、中文摘要均由AI分析而来，可能存在错误，请以论文正文为准。
