We experimentally generate a spatially squeezed light beam and realize a small-displacement measurement beyond the quantum noise limit with this squeezed light. Moreover, we measure about -2.2±0.2dB spatial squee...We experimentally generate a spatially squeezed light beam and realize a small-displacement measurement beyond the quantum noise limit with this squeezed light. Moreover, we measure about -2.2±0.2dB spatial squeezing and reduce the minimum measurable displacement from 1.17A to 0.99A with the signal-to-noise ratio normalized to 1.展开更多
基金Supported by the National Basic Research Program of China under Grant No 2010CB923102, the Project for Excellent Research Team of China under Grant No 61121064, and the National Natural Science Foundation of China under Grant Nos 11274212 and 11174189.
文摘We experimentally generate a spatially squeezed light beam and realize a small-displacement measurement beyond the quantum noise limit with this squeezed light. Moreover, we measure about -2.2±0.2dB spatial squeezing and reduce the minimum measurable displacement from 1.17A to 0.99A with the signal-to-noise ratio normalized to 1.
