135 citations · 497 across the 22 of their papers we have counts for
22 papers
On energy extraction from Q-balls and other fundamental solitons
Vitor Cardoso, Rodrigo Vicente, Zhen Zhong
Energy exchange mechanisms have important applications in particle physics, gravity, fluid mechanics, and practically every field in physics. In this letter we show, both in freque…
Message in a bottle: energy extraction from bouncing geometries
Vitor Cardoso, João L. Costa, José Natário +1
Quantum gravity phenomenology suggests the interesting possibility that black holes are not eternal. Collapse could be halted by some unknown mechanism, or Hawking radiation might…
Measurement of hyperfine structure and the Zemach radius in using optical Ramsey technique
Wei Sun, Pei-Pei Zhang, Peng-peng Zhou +10
We investigate the -- () transitions in using the optical Ramsey technique and achieve the most precise values of the hyperfine spl…
Piercing of a boson star by a black hole
Vitor Cardoso, Taishi Ikeda, Zhen Zhong +1
New light fundamental fields are natural candidates for all or a fraction of dark matter. Self-gravitating structures of such fields might be common objects in the universe, and co…
Precision calculation of hyperfine structure of Be ions
Xiao-Qiu Qi, Pei-Pei Zhang, Zong-Chao Yan +4
The hyperfine structures of the and states of the Be and Be ions are investigated within the framework of the nonrelativistic quantu…
Light rings and long-lived modes in quasi-black hole spacetimes
Minyong Guo, Zhen Zhong, Jinguang Wang +1
It has been argued that ultracompact objects, which possess light rings but no horizons, may be unstable against gravitational perturbations. To test this conjecture, we revisit th…
QED Effects on Kerr Black Hole Shadows immersed in uniform magnetic fields
Zhen Zhong, Zezhou Hu, Haopeng Yan +2
In this work, taking the QED effect into account, we investigate the shadows of the Kerr black holes immersed in uniform magnetic fields through the numerical backward ray-tracing…
QED Effect on Black Hole Shadow
Zezhou Hu, Zhen Zhong, Peng-Cheng Li +2
In this work, taking the QED effect into account, we investigate the shadows of the static black hole with magnetic monopoles and neutral black holes in magnetic fields through the…
Higher-order corrections to spin-spin scalar interactions in HD and H
Jean-Philippe Karr, Mohammad Haidar, Laurent Hilico +2
The largest hyperfine interaction coefficients in the hydrogen molecular ion HD, i.e. the electron-proton and electron-deuteron spin-spin scalar interactions, are calculated wi…
Precision calculation of hyperfine structure and the Zemach radii of Li ions
Xiao-Qiu Qi, Pei-Pei Zhang, Zong-Chao Yan +7
The hyperfine structures of the states of the Li and Li ions are investigated theoretically to extract the Zemach radii of the Li and Li nuclei…
Complex coordinate rotation method based on gradient optimization
Zhi-Da Bai, Zhen-Xiang Zhong, Zong-Chao Yan +1
In atomic, molecular, and nuclear physics, the method of complex coordinate rotation is a widely used theoretical tool for studying resonant states. Here, we propose a novel implem…
Hyperfine structure in the H and HD molecular ions at order
Vladimir Korobov, Jean-Philippe Karr, Mohammad Haidar +1
A complete effective Hamiltonian for relativistic corrections at orders and in a one-electron molecular system is derived from the NRQED Lagrangian. It includes…
Relaxation rate of RNdS black hole
Ming Zhang, Jie Jiang, Zhen Zhong
We investigate the relaxation rate of the RNdS black hole perturbed by neutral massless scalar field in the eikonal limit. We find that the fastest relaxation rate of the composed…
Strong cosmic censorship for the Dirac field in the higher dimensional Reissner-Nordstrom--de Sitter black hole
Xiaoyi Liu, Stijn Van Vooren, Hongbao Zhang +1
We investigate the strong cosmic censorship for the Dirac field in the higher dimensional Reissner-Norstrom--de Sitter black hole. To achieve this, we first use the conformal trans…
The fastest relaxation rate of higher-dimensional Reissner--Nordström black hole
Ming Zhang, Jie Jiang, Zhen Zhong
In the eikonal regime, we analytically calculate quasinormal resonance frequencies for massless scalar perturbations of the higher-dimensional Reissner--Nordström (RN) black holes.…
Strong cosmic censorship in de Sitter space: As strong as ever
Hongbao Zhang, Zhen Zhong
The strong cosmic censorship has recently been put into question for the charged black holes in de Sitter space. We have performed the full non-linear evolution of the massless cha…
The longlived charged massive scalar field in the higher-dimensional Reissner--Nordström spacetime
Ming Zhang, Jie Jiang, Zhen Zhong
The quasinormal resonance frequency of the higher-dimensional Reissner--Nordström (RN) black hole due to charged massive scalar field perturbation is deduced analytically in the ei…
Strong cosmic censorship for the massless Dirac field in the Reissner-Nordstrom-de Sitter spacetime
Boxuan Ge, Jie Jiang, Bin Wang +2
We present the Fermi story of strong cosmic censorship in the near-extremal Reissner-Nordstrom-de Sitter black hole. To this end, we first derive from scratch the criterion for the…
Strong cosmic censorship for the massless charged scalar field in the Reissner-Nordstrom-de Sitter spacetime
Yuyu Mo, Yu Tian, Bin Wang +2
It has recently been shown that the strong cosmic censorship conjecture can be violated by the massless neutral scalar field in the nearly extremal Reissner-Nordstrom-de Sitter bla…
The leading term of the He$-\bar{p}\mbox{He}^+$ long-range interaction
Vladimir I. Korobov, Zhen-Xiang Zhong, Quan-Long Tian
The long range interaction between an antiprotonic helium atom He and helium atom in its ground state is studied. We calculate the dispersion coefficients using…
Precision spectroscopy of the hydrogen molecular ions HD
Zhen-Xiang Zhong, Pei-pei Zhang, Zong-Chao Yan +1
Expectation values of the Breit operators and the terms are calculated for HD with the vibrational number and the total angular momentum . Relativistic and r…
Spin-orbit corrections of order to the fine structure of state in atom
Vladimir I. Korobov, Zhen-Xiang Zhong
Precise numerical calculation of radiofrequency intervals between hyperfine sublevels of the state of the antiprotonic helium-4 atom is presented. Theoretical considerati…