首页|Generation of squeezed vacuum state in the millihertz frequency band
Generation of squeezed vacuum state in the millihertz frequency band
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国家科技期刊平台
NETL
NSTL
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The detection of gravitational waves has ushered in a new era of observing the universe.Quantum resource advantages offer significant enhancements to the sensitivity of gravitational wave observatories.While squeezed states for ground-based gravitational wave detection have received marked attention,the generation of squeezed states suitable for mid-to-low-frequency detection has remained unexplored.To address the gap in squeezed state optical fields at ultra-low frequencies,we report on the first direct observation of a squeezed vacuum field until Fourier frequency of 4 millihertz with the quantum noise reduction of up to 8.0 dB,by the employment of a multiple noise suppression scheme.Our work provides quantum resources for future gravitational wave observatories,facilitating the development of quantum precision measurement.
Li Gao、Li-ang Zheng、Bo Lu、Shaoping Shi、Long Tan、Yaohui Zheng
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State Key Laboratory of Quantum Optics and Quantum Optics Devices,Institute of Opto-Electronics,Shanxi University,Taiyuan 030006,China
Collaborative Innovation Center of Extreme Optics,Shanxi University,Taiyuan 030006,China
国家科技期刊平台
NSTL
万方数据
