PIRSA:16060123

Video URL

https://pirsa.org/16060123

Enhancing the broadband sensitivity of gravitational wave detectors by engineering the entanglement pairs

Ma, Y. (2016). Enhancing the broadband sensitivity of gravitational wave detectors by engineering the entanglement pairs. Perimeter Institute for Theoretical Physics. https://pirsa.org/16060123

Ma, Yiqiu. Enhancing the broadband sensitivity of gravitational wave detectors by engineering the entanglement pairs. Perimeter Institute for Theoretical Physics, Jun. 23, 2016, https://pirsa.org/16060123 

          @misc{ scivideos_PIRSA:16060123,
            doi = {10.48660/16060123},
            url = {https://pirsa.org/16060123},
            author = {Ma, Yiqiu},
            keywords = {Strong Gravity},
            language = {en},
            title = {Enhancing the broadband sensitivity of gravitational wave detectors by engineering the entanglement pairs},
            publisher = {Perimeter Institute for Theoretical Physics},
            year = {2016},
            month = {jun},
            note = {PIRSA:16060123 see, \url{https://scivideos.org/index.php/pirsa/16060123}}
          }

Yiqiu Ma California Institute of Technology

Talk numberPIRSA:16060123
DOI10.48660/16060123
Source RepositoryPIRSA
Collection
Talk Type Scientific Series
Subject

Abstract

Improving the broadband quantum sensitivity of an advanced gravitational wave detector is one of the key steps for future updating of  gravitational wave detectors. Reduction of the broadband quantum noise needs squeezed light with frequency dependent squeezing angle. Current designs for generating frequency dependent squeezed light are based on an ultra-high finesse filter cavity, therefore optical loss will serious contaminate the squeezed light. To circumvent this problem, we  propose an new method for generating a frequency dependent squeezing of quantum noise field quadrature by engineering the quantum entangled field pairs which are filtered through the interferometer arm cavity.  This new method may have the potential to beat the quantum noise by 7dB in recent future.