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The Gravitational-Wave Physics II: Progress
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It has been a half-decade since the first direct detection of gravitational waves, which signifies the coming of the era of the gravitational-wave astronomy and gravitational-wave cosmology. The increasing number of the detected gravitational-wave events has revealed the promising capability of constraining various aspects of cosmology, astronomy, and gravity. Due to the limited space in this review article, we will briefly summarize the recent progress over the past five years, but with a special focus on some of our own work for the Key Project ``Physics associated with the gravitational waves'' supported by the National Natural Science Foundation of China. In particular, (1) we have presented the mechanism of the gravitational-wave production during some physical processes of the early Universe, such as inflation, preheating and phase transition, and the cosmological implications of gravitational-wave measurements; (2) we have put constraints on the neutron star maximum mass according to GW170817 observations; (3) we have developed a numerical relativity algorithm based on the finite element method and a waveform model for the binary black hole coalescence along an eccentric orbit.
Forward citations
Cited by 6 Pith papers
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Gravitational Waves of GUT Phase Transition during Inflation
A general deformation function maps gravitational wave spectra from phase transitions during inflation into today's spectrum; for GUT-scale transitions the peak can appear near 10 Hz or mHz.
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Electroweak Baryogenesis: Advances in Sphaleron Rate Calculations and Implications of Thermal Phase Transitions
Sphaleron rates can be computed gauge-invariantly in 3D thermal EFT, yielding a new baryon-washout criterion x = lambda3/g3^2 that replaces v_c/T_c > 1 for electroweak baryogenesis.
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Inflationary phase transitions in the early Universe: A Bayesian study with space-based gravitational-wave detectors
With a Taiji-like detector, inflationary phase-transition gravitational-wave backgrounds are detectable at SNR≳10, but reliable parameter reconstruction needs SNR≳33 and degrades with astrophysical foregrounds.
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Bayesian analysis of the complex singlet model with phase transition gravitational waves
Bayesian forecasts for the Taiji detector constrain complex singlet model parameters through electroweak phase transition gravitational wave signals.
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Measuring gravitational wave spectrum from electroweak phase transition and Higgs self-couplings
Using simulated Taiji data, the authors show that a stochastic gravitational-wave signal from an electroweak phase transition in the singlet-extended Standard Model can constrain the Higgs cubic and quartic self-couplings.
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Full-Covariance Bayesian Inference of Stochastic Gravitational Wave Background with Time-Domain Simulations for Taiji-like Missions
A full-covariance Bayesian pipeline that combines time-domain TDI simulations with a frequency-domain likelihood recovers injected stochastic gravitational-wave backgrounds for a Taiji-like mission, though its detecto...
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