论文标题
计数微波光子最多两个的超导检测器
A superconducting detector that counts microwave photons up to two
论文作者
论文摘要
我们提出了一个微波光子的检测器，该检测器可以区分带有两个或更多光子的真空状态，单光子状态和状态。它的操作基于有偏见的约瑟夫岛交界处的两光子过渡，当它从超导体切换到正常状态时，就会发生检测。我们理论上对检测器进行建模。该检测器在几微秒内的成功概率超过90％。它对8.2GHz光子很敏感。工作频率可以设置为从约1GHz到20GHz的设计阶段。
We propose a detector of microwave photons which can distinguish the vacuum state, one-photon state, and the states with two or more photons. Its operation is based on the two-photon transition in a biased Josephson junction and detection occurs when it switches from a superconducting to a normal state. We model the detector theoretically. The detector performs with more than 90% success probability in several microseconds. It is sensitive for the 8.2GHz photons. The working frequency could be set at the design stage in the range from about 1GHz to 20GHz.
