Zobrazeno 1 - 10
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pro vyhledávání: '"Tong Xi"'
The superradiance instability of rotating black holes leads to the formation of an ultralight boson cloud with distinctive observational signatures, making black holes an effective probe of ultralight dark matter. However, around black holes in a bin
Externí odkaz:
http://arxiv.org/abs/2409.14159
Cosmological correlators encode invaluable information about the wavefunction that characterises the state of the primordial universe. In this letter we present a simple yet novel duality between correlators and wavefunction coefficients that is vali
Externí odkaz:
http://arxiv.org/abs/2406.00099
The squeezed limit of the primordial curvature bispectrum is an extremely sensitive probe of new physics and encodes information about additional fields active during inflation such as their masses and spins. In the conventional setup, additional fie
Externí odkaz:
http://arxiv.org/abs/2401.11009
A superradiant cloud of ultralight bosons near a rotating black hole provides a smoking gun for particle physics in the infrared. However, tidal perturbations from a nearby binary companion can destabilise the boson cloud and even terminate superradi
Externí odkaz:
http://arxiv.org/abs/2311.17013
We consider the evolution of quantum fields during inflation, and show that the total-energy singularities appearing in the perturbative expansion of the late-time Wavefunction of the Universe are purely real when the external states are massless sca
Externí odkaz:
http://arxiv.org/abs/2309.07769
Parity violation in the early universe holds great promise for uncovering new physics. In particular, the primordial scalar four-point correlation function is allowed to develop a parity-violating component when massive spinning particles coupled to
Externí odkaz:
http://arxiv.org/abs/2308.11315
We consider a Bardeen-Cooper-Schrieffer (BCS)-like model in the inflationary background. We show that with an axial chemical potential, the attractive quartic fermion self-interaction can lead to a BCS-like condensation. In the rigid-de Sitter (dS) l
Externí odkaz:
http://arxiv.org/abs/2304.09428
Autor:
Solomon Kerealme Yeshanew, Chunguang Bai, Qing Jia, Tong Xi, Zhiqiang Zhang, Diaofeng Li, Zhizhou Xia, Rui Yang, Ke Yang
Publikováno v:
Journal of Materials Research and Technology, Vol 30, Iss , Pp 7545-7562 (2024)
In order to investigate the influence of gradual stress relieving treatment on the microstructure, texture evolution, grain structure, and misorientation distribution of the hot-rolled Ti6Al4V–5Cu (α+β) alloy deformed in various thickness reducti
Externí odkaz:
https://doaj.org/article/c564838dc8774115bf63ff6a27ae5349
Autor:
Niels van Nistelrooij, Khalid El Ghoul, Tong Xi, Anindo Saha, Steven Kempers, Max Cenci, Bas Loomans, Tabea Flügge, Bram van Ginneken, Shankeeth Vinayahalingam
Publikováno v:
BMC Oral Health, Vol 24, Iss 1, Pp 1-12 (2024)
Abstract Objective Panoramic radiographs (PRs) provide a comprehensive view of the oral and maxillofacial region and are used routinely to assess dental and osseous pathologies. Artificial intelligence (AI) can be used to improve the diagnostic accur
Externí odkaz:
https://doaj.org/article/9f0b1f9e541b4b02a162e9fcb8011ab3
We propose a scenario where superheavy dark matter (DM) can be produced via symmetry restoration first-order phase transition during inflation triggered by the evolution of the inflaton field. The phase transition happens in a spectator sector couple
Externí odkaz:
http://arxiv.org/abs/2208.14857