Forkel, Johannes Sauzedde, Isao
Published in
Journal of Physics A: Mathematical and Theoretical
We prove that the convergence of the real and imaginary parts of the logarithm of the characteristic polynomial of unitary Brownian motion toward Gaussian free fields on the cylinder, as the matrix dimension goes to infinity, holds in certain suitable Sobolev spaces, whose regularity we prove to be optimal. Our result can be seen as the natural dyn...
王, 志刚
Published in
Chinese Physics C
In this study, we chose the diquark-antidiquark type four-quark currents with an explicit P-wave between the diquark and antidiquark pairs to study the ground states and first radial excitations of the hidden-charm tetraquark states with quantum numbers . We also obtained the lowest vector tetraquark masses and made possible assignments of the exis...
王, 志刚
Published in
Chinese Physics C
In this study, we use the optical theorem to calculate the next-to-leading order corrections to the QCD spectral densities directly in the QCD sum rules for the pseudoscalar and scalar B c mesons. We use experimental data for guidance to perform an updated analysis. We obtain the masses and, in particular, decay constants, which are the fundamental...
Shi, Zhihong Ng, C.-Y.
Published in
The Astrophysical Journal
We present a population synthesis model for normal radio pulsars in the Galaxy incorporating the latest developments in the field and the magnetorotational evolution processes. Our model considers spin-down with a force-free magnetosphere and the decay of the magnetic field strength and its inclination angle. The simulated pulsar population is fit ...
Liu, Lijun Ge, Xiaozhen Cheng, Shuming
Published in
Physica Scripta
In a recent work by us Ge et al [Phys. Rev. A 110, L010402 (2024)], we have derived a series of polygon relations of bipartite entanglement measures that is useful to reveal entanglement properties of discrete, continuous, and even hybrid multipartite quantum systems. In this work, with the information-theoretical measures of Rényi and Tsallis entr...
Liu, Ziming Wang, Jie Jing, Yingjie Zhang, Zhi-Yu Xu, Chen Liang, Tiantian Chen, Qingze Tang, Ningyu Yang, Qingliang
Published in
Research in Astronomy and Astrophysics
Accurate flux density calibration is essential for precise analysis and interpretation of observations across different observation modes and instruments. In this research, we first introduce the flux calibration model that incorporated in HiFAST pipeline, and designed for processing H i 21 cm spectra. Furthermore, we investigate different calibrat...
Rozier, Simon Errani, Raphaël
Published in
The Astrophysical Journal
Placed slightly out of dynamical equilibrium, an isolated stellar system quickly returns toward a steady virialized state. We study this process of collisionless relaxation using the matrix method of linear response theory. We show that the full phase-space distribution of the final virialized state can be recovered directly from the disequilibrium...
Ruhlmann-Kleider, Vanina Yèche, Christophe Magneville, Christophe Coquinot, Henri Armengaud, Eric Palanque-Delabrouille, Nathalie Raichoor, Anand Aguilar, Jessica Nicole Ahlen, Steven Arnouts, Stéphane
...
Published in
Journal of Cosmology and Astroparticle Physics
Lyman break galaxies (LBGs) are promising probes for clustering measurements at high redshift, z > 2, a region only covered so far by Lyman-α forest measurements. In this paper, we investigate the feasibility of selecting LBGs by exploiting the existence of a strong deficit of flux shortward of the Lyman limit, due to various absorption processes a...
Liu, Ziming Wang, Jie Jing, Yingjie Xu, Chen Liang, Tiantian Chen, Qingze Liu, Zerui Hou, Zhipeng Wang, Yougang
Published in
Research in Astronomy and Astrophysics
With the exceptional sensitivity of the Five-hundred-meter Aperture Spherical radio Telescope, we conducted observations of the neutral hydrogen (H i) in the circumgalactic medium of Andromeda’s (M31) satellite galaxies, specifically Andromeda II, NGC 205, and NGC 185. Initially, three drift scans were executed for these satellites, with a detectio...
平井, 遼介 Podsiadlowski, Philipp Heger, Alexander 長倉, 洋樹
Published in
The Astrophysical Journal Letters
Recent neutron star surface observations corroborate a long-standing theory that neutron stars may be accelerated over extended periods after their birth. We analyze how these prolonged rocket-like accelerations, combined with rapid birth kicks, impact binary orbits. We find that even a small contribution of rocket kicks combined with instantaneous...
