@article{9caf680a2297456897c41291c8b4c688,
title = "Two-Carrier Scheme: Evading the 3 dB Quantum Penalty of Heterodyne Readout in Gravitational-Wave Detectors",
abstract = "Precision measurements using a traditional heterodyne readout suffer a 3 dB quantum noise penalty compared with a homodyne readout. The extra noise is caused by the quantum fluctuations in the image vacuum. We propose a two-carrier gravitational-wave detector design that evades the 3 dB quantum penalty of the heterodyne readout. We further propose a new way of realizing frequency-dependent squeezing utilizing two-mode squeezing in our scheme. It naturally achieves more precise audio frequency signal measurements with radio frequency squeezing. In addition, the detector is compatible with other quantum nondemolition techniques. ",
author = "Teng Zhang and Philip Jones and Ji{\v r}{\'i} Smetana and Haixing Miao and Denis Martynov and Andreas Freise and Ballmer, {Stefan W.}",
note = "Funding Information: We acknowledge the support from simulation software, finesse and Francois Bondu for providing the simulation program, cypres . T. Z., P. J., H. M., D. M., and A. F. acknowledge the support of the Institute for Gravitational Wave Astronomy at University of Birmingham. A. F. has been supported by a Royal Society Wolfson Fellowship which is jointly funded by the Royal Society and the Wolfson Foundation. H. M. is supported by UK STFC Ernest Rutherford Fellowship (Grant No. ST/M005844/11). S. W. B. acknowledges the supported by the National Science Foundation Grant No. PHY-1912536. This document was assigned the LIGO document control number LIGO-P2000260. Publisher Copyright: {\textcopyright} 2021 American Physical Society. ",
year = "2021",
month = jun,
day = "4",
doi = "10.1103/PhysRevLett.126.221301",
language = "English (US)",
volume = "126",
journal = "Physical Review Letters",
issn = "0031-9007",
publisher = "American Physical Society",
number = "22",
}