Jing Ji-Liang

Holographic superconductors in Gauss-Bonnet gravity with Born-Infeld electrodynamics

We investigate the holographic superconductors in Gauss-Bonnet gravity with Born-Infeld electrodynamics. We find that the Gauss-Bonnet constant, the model parameters, and the Born-Infeld coupling parameter will affect the formation of the scalar hair, the transition point of the phase transition from the second order to the first order, and the relation connecting the gap frequency in conductivity with the critical temperature. The combination of Gauss-Bonnet gravity and the Born-Infeld electrodynamics provides richer physics in the phase transition and the condensation of the scalar hair.

Dirac Quasinormal Modes of the Schwarzschild?anti-de Sitter Black Hole with a Global Monopole

The quasinormal modes associated with the decay of Dirac field perturbation around a Schwarzschild-anti-de Sitter black hole with a global monopole (SAdSBHGM) are calculated using the Horowitz?Hubeny approach. For the large SAdSBHGM, we find that ? has little effect on the quasinormal frequencies. However, for the intermediate and small SAdSBHGM, in the limit ??1/(8?)1/2, the real parts of the fundamental quasinormal frequencies approximate the linear functions of T, and the imaginary ones approximate the linear functions of r+.

Propagation and Evolution of a Scalar Field in Einstein—Power—Maxwell Spacetime

The propagation and dynamical evolution of a scalar field in the background of a (2 + 1)-dimensional Einstein—Power—Maxwell (EPM) black hole are studied. We obtain an analytical expression for the greybody factor, which shows that the greybody factor increases as the electric charge increases and approaches unity for large frequencies. We also find the quasinormal modes of the black hole, which tell us that the EPM spacetime is very stable.

Quantum Correction to Entropy of the Kerr Black Hole due to Rarita-Schwinger Fields

Quantum correction to entropy of the Kerr black hole arising from Rarita-Schwinger fields is studied by using the Newman-Penrose formalism and brick-wall model. It is shown that contribution of spin to the logarithmic term of the quantum correction is dependent on both the square of spin of the particle and the rotation of the black hole. For different values of a/r+, the subleading term can increase or decrease, or cannot affect the entropy.

Quasinormal Spectrum and Quantization of the Kerr–Newman Black Hole

The intermediate asymptotic quasinormal mode spectrum of the charged scalar and Dirac fields in the near extremal Kerr–Newman black hole is studied analytically. It is found that the quasinormal mode spectrum can be expressed in terms of the Hawking temperature Thb, the electric potential + and the horizons angular velocity ΩH for the case of (e_ + mΩ H) > (1 - 4πThb)Re(ω) (where e is the charge and m is the azimuthal projection number), whereas it is only relevant to the charge and the mass parameter for another case. It is also shown that by using the Bohrs correspondence principle, the fundamental change in the black-hole surface area induced by the emission of a rotating charged quantum from the Kerr–Newman black hole is in accord with the Bekenstein–Mukhanov general prediction.

Asymptotic Tails of Massive Scalar Fields in a Stationary Axisymmetric EMDA Black Hole Geometry

The late-time tail behavior of massive scalar fields is studied analytically in a stationary axisymmetric EMDA black hole geometry. It is shown that the asymptotic behavior of massive perturbations is dominated by the oscillatory inverse power-law decaying tail

Holographic Superconductor Models with RF 2 Corrections

t^{-(l+3/2)}\sin(\mu t)

Late-time evolution of massive Dirac fields in the Kerr background

at the intermediate late times, and by the asymptotic tail

Quantum Spectrum of Stationary Axisymmetric Einstein–Maxwell Dilaton–Axion Black Hole

t^{-5/6}\sin(\mu t)

Late-time tails in a stationary axisymmetric EMDA black hole geometry

at asymptotically late times. Our result seems to suggest that the intermediate tails