The quasinormal modes (QNMs) associated with the decay of Dirac field perturbation around a Schwarzschild-anti-de Sitter (SAdS) black hole is investigated by using Horowitz-Hubeny approach. We find that both the real and the imaginary parts of the fundamental quasinormal frequencies for large ...
Quasinormal modesWKB approximationIn this work, quasinormal modes (QNMs) of the Schwarzschild black hole are investigated by taking into account the quantum fluctuations. Gravitational and Dirac perturbations were considered for this case. The Regge-Wheeler gauge and the Dirac equation were used to ...
Imposing on the horizon the requirements that there are only ingoing waves and at infinity the Dirichlet boundary conditions and the Neumann boundary condition hold, we calculate the oscillatory and the decay modes of the QNMs. We find that the propagation of the scalar field is stable in this...
The second-quantization of a scalar field in an open cavity is formulated, from first principles, in terms of the quasinormal modes (QNMs), which are the eigensolutions of the evolution equation that decay exponentially in time as energy leaks to the outside. This formulation provides a ...
11.15.-q11.25.HfUsing the Pöshl–Teller approximation, we evaluate the neutrino quasinormal modes (QNMs) of a Kerr–Newman–de Sitter black hole. The result shows that for a Kerr–Newman–de Sitter black hole, massless neutrino perturbation of large Λ, positive m and small value of n ...
Logarithmic perturbation theory (LPT) is developed and applied to quasinormal modes (QNMs) in open systems. QNMs often do not form a complete set, so LPT is especially convenient because summation over a complete set of unperturbed states is not required. Attention is paid to potentials with ...
As a result, the time-evolution operator is not Hermitian in the usual sense and the eigenfunctions (factorized solutions in space and time) are no longer normal modes but quasinormal modes (QNMs) whose frequencies omega are complex. Quasinormal-mode analysis has been a powerful tool for ...
quasinormal modes (QNMs) have gained attention for the last few decades in discussing the perturbations of black holes [1,2,3,4]. It is well known that for a large family of black holes, the perturbation equations can be cast into a Schrödinger like form. The QNMs come out as the ...
We investigate quasinormal modes (QNMs) and Hawking radiation of a Reissner-Nordström black hole surrounded by quintessence. The Wentzel-Kramers-Brillouin (WKB) method is used to evaluate the QNMs and the rate of radiation. The results show that due to the interaction of the quintessence with...
Our general quantum plasmonics formalism can easily be extended to include multiple QDs interacting through the QNMs of metallic resonator structures, fully accounting for radiative and nonradiative coupling, as well as nonlinear light-matter interaction processes. 展开 ...