Výsledky vyhledávání - "Yang, Feng Wei"

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Probing Early Universe Supercooled Phase Transitions with Gravitational Wave Data

Autor: Badger, Charles, Fornal, Bartosz, Martinovic, Katarina, Romero, Alba, Turbang, Kevin, Guo, Huai-Ke, Mariotti, Alberto, Sakellariadou, Mairi, Sevrin, Alexander, Yang, Feng-Wei, Zhao, Yue

We investigate the reach of the LIGO/Virgo/KAGRA detectors in the search for signatures of first-order phase transitions in the early Universe. Utilising data from the first three observing runs, we derive constraints on the parameters of the underly

Externí odkaz: http://arxiv.org/abs/2209.14707

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Implications for First-Order Cosmological Phase Transitions from the Third LIGO-Virgo Observing Run

Autor: Romero, Alba, Martinovic, Katarina, Callister, Thomas A., Guo, Huai-Ke, Martínez, Mario, Sakellariadou, Mairi, Yang, Feng-Wei, Zhao, Yue

Publikováno v: Phys. Rev. Lett. 126, 151301 (2021)

We place constraints on the normalized energy density in gravitational waves from first-order strong phase transitions using data from Advanced LIGO and Virgo's first, second and third observing runs. First, adopting a broken power law model, we plac

Externí odkaz: http://arxiv.org/abs/2102.01714

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Searching for Dark Photon Dark Matter in LIGO O1 Data

Autor: Guo, Huai-Ke, Riles, Keith, Yang, Feng-Wei, Zhao, Yue

Publikováno v: Commun Phys 2, 155 (2019)

Dark matter exists in our Universe, but its nature remains mysterious. The remarkable sensitivity of the Laser Interferometer Gravitational-Wave Observatory (LIGO) may be able to solve this mystery. A good dark matter candidate is the ultralight dark

Externí odkaz: http://arxiv.org/abs/1905.04316

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Dissertation/ Thesis

Multigrid solution methods for nonlinear time-dependent systems

Autor: Yang, Feng Wei

An efficient, accurate and reliable numerical solver is essential for solving complex mathematical models and obtaining their computational approximations. The solver presented in this work is built upon nonlinear multigrid with the full approximatio

Externí odkaz: http://ethos.bl.uk/OrderDetails.do?uin=uk.bl.ethos.638877

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Strong gravitational field time delay for photons coupled to Weyl tensor in a Schwarzschild black hole

Autor: Lu, Xu, Yang, Feng-Wei, Xie, Yi

Publikováno v: Eur. Phys. J. C (2016) 76: 357

We analyse strong gravitational field time delay for photons coupled to the Weyl tensor in a Schwarzschild black hole. By making use of the method of strong deflection limit, we find that these time delays between relativistic images are significantl

Externí odkaz: http://arxiv.org/abs/1606.02932

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