Search Results - "Ballmer, S. W."
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Substrate-transferred GaAs/AlGaAs crystalline coatings for gravitational-wave detectors
Published in Applied physics letters (13-03-2023)“…In this Perspective, we summarize the status of technological development for large-area and low-noise substrate-transferred GaAs/AlGaAs (AlGaAs) crystalline…”
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Quantum-Enhanced Advanced LIGO Detectors in the Era of Gravitational-Wave Astronomy
Published in Physical review letters (06-12-2019)“…The Laser Interferometer Gravitational Wave Observatory (LIGO) has been directly detecting gravitational waves from compact binary mergers since 2015. We…”
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Approaching the motional ground state of a 10-kg object
Published in Science (American Association for the Advancement of Science) (18-06-2021)“…Really cool mirrors Cooling objects to low temperature can increase the sensitivity of sensors and the operational performance of most devices. Removing most…”
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Performance of the KAGRA detector during the first joint observation with GEO 600 (O3GK)
Published 14-03-2022“…KAGRA, the kilometer-scale underground gravitational-wave detector, is located at Kamioka, Japan. In April 2020, an astrophysics observation was performed at…”
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Point Absorber Limits to Future Gravitational-Wave Detectors
Published 17-09-2021“…High-quality optical resonant cavities require low optical loss, typically on the scale of parts per million. However, unintended micron-scale contaminants on…”
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Environmental Noise in Advanced LIGO Detectors
Published 17-08-2021“…The sensitivity of the Advanced LIGO detectors to gravitational waves can be affected by environmental disturbances external to the detectors themselves. Since…”
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Approaching the motional ground state of a 10 kg object
Published 09-07-2021“…Science 372, 1333 (2021) The motion of a mechanical object -- even a human-sized object -- should be governed by the rules of quantum mechanics. Coaxing them…”
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LIGOs Quantum Response to Squeezed States
Published 25-05-2021“…Phys. Rev. D 104, 062006 (2021) Gravitational Wave interferometers achieve their profound sensitivity by combining a Michelson interferometer with optical…”
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Reducing Scattered Light in LIGO's Third Observing Run
Published 09-02-2021“…Classical and Quantum Gravity, 2020, Volume 38, Number 2 Noise due to scattered light has been a frequent disturbance in the Advanced LIGO gravitational wave…”
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Sensitivity and Performance of the Advanced LIGO Detectors in the Third Observing Run
Published 20-08-2020“…Phys. Rev. D 102, 062003 (2020) On April 1st, 2019, the Advanced Laser Interferometer Gravitational-Wave Observatory (aLIGO), joined by the Advanced Virgo…”
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Squeezing the quantum noise of a gravitational-wave detector below the standard quantum limit
Published in Science (American Association for the Advancement of Science) (20-09-2024)“…The Heisenberg uncertainty principle dictates that the position and momentum of an object cannot be simultaneously measured with arbitrary precision, giving…”
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Quantum correlations between the light and kilogram-mass mirrors of LIGO
Published 04-02-2020“…Measurement of minuscule forces and displacements with ever greater precision encounters a limit imposed by a pillar of quantum mechanics: the Heisenberg…”
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Searching for the causes of anomalous Advanced LIGO noise
Published in Applied physics letters (01-05-2023)“…Advanced LIGO and Advanced Virgo have detected gravitational waves from astronomical sources to open a new window on the Universe. To explore this new realm…”
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First Demonstration of Electrostatic Damping of Parametric Instability at Advanced LIGO
Published in Physical review letters (14-04-2017)“…Interferometric gravitational wave detectors operate with high optical power in their arms in order to achieve high shot-noise limited strain sensitivity. A…”
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Point Absorber Limits to Future Gravitational-Wave Detectors
Published in Physical review letters (10-12-2021)“…High-quality optical resonant cavities require low optical loss, typically on the scale of parts per million. However, unintended micron-scale contaminants on…”
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Improving astrophysical parameter estimation via offline noise subtraction for Advanced LIGO
Published 01-06-2018“…Phys. Rev. D 99, 042001 (2019) The Advanced LIGO detectors have recently completed their second observation run successfully. The run lasted for approximately…”
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The Sensitivity of the Advanced LIGO Detectors at the Beginning of Gravitational Wave Astronomy
Published 10-02-2018“…Phys. Rev. D 93, 112004 (2016) The Laser Interferometer Gravitational Wave Observatory (LIGO) consists of two widely separated 4 km laser interferometers…”
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Identification and mitigation of narrow spectral artifacts that degrade searches for persistent gravitational waves in the first two observing runs of Advanced LIGO
Published 22-01-2018“…Phys. Rev. D 97, 082002 (2018) Searches are under way in Advanced LIGO and Virgo data for persistent gravitational waves from continuous sources, e.g. rapidly…”
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Effects of transients in LIGO suspensions on searches for gravitational waves
Published 15-02-2017“…This paper presents an analysis of the transient behavior of the Advanced LIGO suspensions used to seismically isolate the optics. We have characterized the…”
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