CHRONOS is a proposed cryogenic torsion-bar detector with quantum non-demolition speed-meter readout targeting 10^{-18} strain sensitivity at 2 Hz to open the sub-Hz gravitational-wave window from the ground.
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CHRONOS is a proposed cryogenic sub-Hz torsion-bar speed-meter detector targeting 10^{-18} Hz^{-1/2} strain sensitivity at 2 Hz for IMBH mergers and stochastic GW backgrounds.
CHRONOS is projected to detect prompt gravitational signals from Mw 5.2 earthquakes within ~90 km (SNR ~3.62 at 40 km in sub-Hz band) while Rayleigh-wave Newtonian noise dominates below ~0.5 Hz.
Torsion-bar detector with differential mass cancellation reaches |α_Y| = 2.4×10^{-5} at λ = 8 m for Yukawa gravity deviations, limited by source-mass geometry uncertainties after ~26 hours.
Simulated noise budget for the proposed CHRONOS sub-Hz detector projects competitive sensitivity near 2 Hz and multi-second earthquake early-warning lead times within 40 km.
citing papers explorer
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Science of Cryogenic sub-Hz cROss torsion bar detector with quantum NOn-demolition Speed meter (CHRONOS)
CHRONOS is a proposed cryogenic torsion-bar detector with quantum non-demolition speed-meter readout targeting 10^{-18} strain sensitivity at 2 Hz to open the sub-Hz gravitational-wave window from the ground.
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Instrumental development for Cryogenic sub-Hz cROss torsion bar detector with quantum NOn-demolition Speed meter (CHRONOS)
CHRONOS is a proposed cryogenic sub-Hz torsion-bar speed-meter detector targeting 10^{-18} Hz^{-1/2} strain sensitivity at 2 Hz for IMBH mergers and stochastic GW backgrounds.
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Prospects for Observing Gravity-gradient Noise and Earthquake Gravity Signals with CHRONOS
CHRONOS is projected to detect prompt gravitational signals from Mw 5.2 earthquakes within ~90 km (SNR ~3.62 at 40 km in sub-Hz band) while Rayleigh-wave Newtonian noise dominates below ~0.5 Hz.
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Probing Yukawa Gravity with Modulated Newtonian Cancellation in the CHRONOS Detector
Torsion-bar detector with differential mass cancellation reaches |α_Y| = 2.4×10^{-5} at λ = 8 m for Yukawa gravity deviations, limited by source-mass geometry uncertainties after ~26 hours.
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Noise budget of Cryogenic sub-Hz cROss torsion bar detector with quantum NOn-demolition Speed meter (CHRONOS)
Simulated noise budget for the proposed CHRONOS sub-Hz detector projects competitive sensitivity near 2 Hz and multi-second earthquake early-warning lead times within 40 km.