scholarly journals Quantum noise limits in white-light-cavity-enhanced gravitational wave detectors

2015 ◽  
Vol 92 (8) ◽  
Author(s):  
Minchuan Zhou ◽  
Zifan Zhou ◽  
Selim M. Shahriar
Keyword(s):  
Gravitational Wave ◽  
White Light ◽  
Quantum Noise ◽  
Gravitational Wave Detectors ◽  
White Light Cavity

scholarly journals Gravitational wave detectors with broadband high frequency sensitivity

2021 ◽  
Vol 4 (1) ◽  
Author(s):  
Michael A. Page ◽  
Maxim Goryachev ◽  
Haixing Miao ◽  
Yanbei Chen ◽  
Yiqiu Ma ◽  
...  
Keyword(s):  
Gravitational Wave ◽  
White Light ◽  
High Frequency ◽  
Phononic Crystal ◽  
Optical Power ◽  
Light Signal ◽  
Acoustic Cavity ◽  
Silicon Nitride Membrane ◽  
Gravitational Wave Detectors ◽  
Crystal Quartz

AbstractGravitational waves from the neutron star coalescence GW170817 were observed from the inspiral, but not the high frequency postmerger nuclear matter motion. Optomechanical white light signal recycling has been proposed for achieving broadband sensitivity in gravitational wave detectors, but has been reliant on development of suitable ultra-low loss mechanical components. Here we show demonstrated optomechanical resonators that meet loss requirements for a white light signal recycling interferometer with strain sensitivity below 10−24 Hz−1/2 at a few kHz. Experimental data for two resonators are combined with analytic models of interferometers similar to LIGO to demonstrate enhancement across a broader band of frequencies versus dual-recycled Fabry-Perot Michelson detectors. Candidate resonators are a silicon nitride membrane acoustically isolated by a phononic crystal, and a single-crystal quartz acoustic cavity. Optical power requirements favour the membrane resonator, while thermal noise performance favours the quartz resonator. Both could be implemented as add-on components to existing detectors.

scholarly journals Light dark matter scattering in gravitational wave detectors

2020 ◽  
Vol 80 (12) ◽  
Author(s):  
Chun-Hao Lee ◽  
Chrisna Setyo Nugroho ◽  
Martin Spinrath
Keyword(s):  
Dark Matter ◽  
Gravitational Wave ◽  
Quantum Noise ◽  
Light Particle ◽  
Gravitational Wave Detectors ◽  
Particle Dark Matter ◽  
Potential Signal ◽  
Dark Matter Scattering

AbstractWe present prospects for discovering dark matter scattering in gravitational wave detectors. The focus of this work is on light, particle dark matter with masses below 1 $$\hbox {GeV}/\text {c}^{2}$$ GeV / c 2 . We investigate how a potential signal compares to typical backgrounds like thermal and quantum noise, first in a simple toy model and then using KAGRA as a realistic example. That shows that for a discovery much lighter and cooler mirrors would be needed. We also give some brief comments on space-based experiments and future atomic interferometers.

scholarly journals Optimization of quantum noise by completing the square of multiple interferometer outputs in quantum locking for gravitational wave detectors

2020 ◽  
Vol 384 (26) ◽  
pp. 126626
Author(s):  
Rika Yamada ◽  
Yutaro Enomoto ◽  
Atsushi Nishizawa ◽  
Koji Nagano ◽  
Sachiko Kuroyanagi ◽  
...  
Keyword(s):  
Gravitational Wave ◽  
Quantum Noise ◽  
Gravitational Wave Detectors
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