Generation of squeezed vacuum state in the millihertz frequency band

Li Gao; Li-ang Zheng; Bo Lu; Shaoping Shi; Long Tian; Yaohui Zheng

doi:10.1038/s41377-024-01606-y

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Generation of squeezed vacuum state in the millihertz frequency band

Original Articles

- Generation of squeezed vacuum state in the millihertz frequency band
- Light: Science & Applications Vol. 13, Issue 12, Pages: 3109-3116(2024)
- Affiliations：
  
  1.State Key Laboratory of Quantum Optics and Quantum Optics Devices, Institute of Opto-Electronics, Shanxi University, Taiyuan 030006, China
  2.Collaborative Innovation Center of Extreme Optics, Shanxi University, Taiyuan 030006, China
- Author bio：
  
  Shaoping Shi (ssp4208@sxu.edu.cn)
  Yaohui Zheng (yhzheng@sxu.edu.cn)
- Funds：
- DOI：10.1038/s41377-024-01606-y
  CLC：
- Published：31 December 2024，
  
  Published Online：17 October 2024，
  
  Received：06 April 2024，
  
  Revised：22 August 2024，
  
  Accepted：26 August 2024
- Accepted：
Scan QR Code
Gao, L. et al. Generation of squeezed vacuum state in the millihertz frequency band. Light: Science & Applications, 13, 3109-3116 (2024).
DOI：

Gao, L. et al. Generation of squeezed vacuum state in the millihertz frequency band. Light: Science & Applications, 13, 3109-3116 (2024). DOI： 10.1038/s41377-024-01606-y.

摘要

Abstract

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.

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references

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