@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",
}