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Gravitational-wave astrophysics has the potential to be transformed by a global network of longer, colder, and thus more sensitive detectors. This network must be constructed to address a wide range of science goals, involving binary…

Instrumentation and Methods for Astrophysics · Physics 2019-11-11 Evan D Hall , Matthew Evans

Magnetic Johnson-Nyquist noise (JNN) originating from metal electrodes, used to create a static electric field in neutron electric-dipole-moment (nEDM) experiments, may limit the sensitivity of measurements. We present here the first…

The estimation of parameters characterizing dynamical processes is central to science and technology. The estimation error changes with the number N of resources employed in the experiment (which could quantify, for instance, the number of…

Quantum Physics · Physics 2012-01-10 B. M. Escher , R. L. de Matos Filho , L. Davidovich

Newtonian gravitational noise from seismic fields will become a limiting noise source at low frequency for second-generation, gravitational-wave detectors. It is planned to use seismic sensors surrounding the detectors' test masses to…

Instrumentation and Methods for Astrophysics · Physics 2018-12-05 M. W. Coughlin , J. Harms , J. Driggers , D. J. McManus , N. Mukund , M. P. Ross , B. J. J. Slagmolen , K. Venkateswara

We present the implementation of an anomaly-detection algorithm based on a deep convolutional autoencoder for the search for gravitational waves (GWs) in time-frequency spectrograms. Our method targets short-duration ($\lesssim…

General Relativity and Quantum Cosmology · Physics 2026-02-23 Gianluca Inguglia , Huw Haigh , Kristyna Vitulova , Ulyana Dupletsa

Correlated magnetic noise in the form of Schumann resonances could introduce limitations to the gravitational-wave background searches of future Earth-based gravitational-wave detectors. We consider recorded magnetic activity at a candidate…

General Relativity and Quantum Cosmology · Physics 2022-05-31 Kamiel Janssens , Katarina Martinovic , Nelson Christensen , Patrick M. Meyers , Mairi Sakellariadou

We investigate the constraint ability of the gravitational wave (GW) as the standard siren on the cosmological parameters by using the third-generation gravitational wave detector: the Einstein Telescope. We simulate the luminosity…

Cosmology and Nongalactic Astrophysics · Physics 2017-02-21 Rong-Gen Cai , Tao Yang

We consider the selective sensing of planar waves in the presence of noise. We present different methods to control the sensitivity of a quantum sensor network, which allow one to decouple it from arbitrarily selected waves while retaining…

Quantum Physics · Physics 2025-07-15 Arne Hamann , Paul Aigner , Pavel Sekatski , Wolfgang Dür

In ultrabroadband terahertz electro-optic sampling, spectral filtering of the gate pulse can strongly reduce the quantum noise while the signal level is only weakly affected. The concept is tested for phase-matched electro-optic detection…

Optics · Physics 2016-04-25 Michael Porer , Jean-Michel Ménard , Rupert Huber

Electrocardiography (ECG) signals are frequently degraded by noise, limiting their clinical reliability in both conventional and wearable settings. Existing methods for addressing ECG noise, relying on artifact classification or denoising,…

Signal Processing · Electrical Eng. & Systems 2025-07-23 Tae-Seong Han , Jae-Wook Heo , Hakseung Kim , Cheol-Hui Lee , Hyub Huh , Eue-Keun Choi , Hye Jin Kim , Dong-Joo Kim

Recently, detailed studies have been made to compare the performance of the European next generation GW observatory Einstein Telescope (ET) in a single-site triangular configuration with the performance of a configuration featuring two…

General Relativity and Quantum Cosmology · Physics 2024-08-28 Francesco Iacovelli , Enis Belgacem , Michele Maggiore , Michele Mancarella , Niccolò Muttoni

Increasing the sensitivity of a gravitational-wave (GW) detector improves our ability to measure the characteristics of detected sources. It also increases the number of weak signals that contribute to the data. Because GW detectors have…

General Relativity and Quantum Cosmology · Physics 2009-11-06 Tania Regimbau , Scott A. Hughes

The Einstein Telescope (ET) is a proposed future gravitational wave detector. Its design is original, using a triangular orientation of three detectors and a xylophone configuration, splitting each detector into one high-frequency and one…

Instrumentation and Detectors · Physics 2014-04-03 Mengyao Wang , Charlotte Bond , Daniel Brown , Frank Brueckner , Ludovico Carbone , Rebecca Palmer , Andreas Freise

As new techniques exploiting the Earth's ambient seismic noise field are developed and applied, such as for the observation of temporal changes in seismic velocity structure, it is crucial to quantify the precision with which wave-type…

General Relativity and Quantum Cosmology · Physics 2019-11-28 M. Coughlin , J. Harms , D. C. Bowden , P. Meyers , V. C. Tsai , V. Mandic , G. Pavlis , T. Prestegard

In this paper we analyze the implications of gravitational waves (GWs) as standard sirens on the modified gravity models by using the third-generation gravitational wave detector, i.e., the Einstein Telescope. Two viable models in $f(R)$…

Cosmology and Nongalactic Astrophysics · Physics 2021-05-05 Yu Pan , Yuan He , JingZhao Qi , Jin Li , Shuo Cao , Tonghua Liu , Jun Wang

Around the globe several observatories are seeking the first direct detection of gravitational waves (GWs). These waves are predicted by Einstein's General Theory of Relativity [Einstein, A., Annalen der Physik 49, 769-822 (1916)] and are…

Quantum Physics · Physics 2012-08-27 The LIGO Scientific Collaboration

The detectors in mass spectrometers are precise enough to count ion events. In practice, the statistics of chemical noise are affected by large quantization errors and overdispersion because of amplification in the detector. The detector…

Discrete Mathematics · Computer Science 2009-06-02 Sébastien Li-Thiao-Té

Uncertainty estimation is crucial in scientific data for machine learning. Current uncertainty estimation methods mainly focus on the model's inherent uncertainty, while neglecting the explicit modeling of noise in the data. Furthermore,…

Machine Learning · Computer Science 2024-09-13 Guangxuan Song , Dongmei Fu , Zhongwei Qiu , Jintao Meng , Dawei Zhang

The Empirical Interpolation Method (EIM) and its generalized version (GEIM) can be used to approximate a physical system by combining data measured from the system itself and a reduced model representing the underlying physics. In presence…

Numerical Analysis · Mathematics 2016-11-08 J. P. Argaud , B. Bouriquet , H. Gong , Y. Maday , O. Mula

We investigate a simple variation of the Generalized Harmonic method for evolving the Einstein equations. A flat space wave equation for metric perturbations is separated from the Ricci tensor, with the rest of the Ricci tensor becoming a…

General Relativity and Quantum Cosmology · Physics 2009-02-06 Travis Garrett