کد مقاله | کد نشریه | سال انتشار | مقاله انگلیسی | نسخه تمام متن |
---|---|---|---|---|
11026292 | 1666402 | 2018 | 6 صفحه PDF | دانلود رایگان |
عنوان انگلیسی مقاله ISI
The instability spectra of near-extremal Reissner-Nordström-de Sitter black holes
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موضوعات مرتبط
مهندسی و علوم پایه
فیزیک و نجوم
فیزیک هسته ای و انرژی بالا
پیش نمایش صفحه اول مقاله
چکیده انگلیسی
The linearized dynamics of charged massive scalar fields in the near-extremal charged Reissner-Nordström-de Sitter (RNdS) black-hole spacetime is studied analytically. Interestingly, it is proved that the non-asymptotically flat charged black-hole-field system is characterized by unstable (exponentially growing in time) complex resonant modes. Using a WKB analysis in the eikonal large-mass regime Mμâ«1, we provide a remarkably compact analytical formula for the quasinormal resonant spectrum {Ïn(M,Q,Î,μ,q)}n=0n=â which characterizes the unstable modes of the composed RNdS-black-hole-charged-massive-scalar-field system [here {M,Q,Î} are respectively the mass, electric charge, and cosmological constant of the black-hole spacetime, and {μ,q} are the proper mass and charge coupling constant of the linearized field].
ناشر
Database: Elsevier - ScienceDirect (ساینس دایرکت)
Journal: Physics Letters B - Volume 786, 10 November 2018, Pages 217-222
Journal: Physics Letters B - Volume 786, 10 November 2018, Pages 217-222
نویسندگان
Shahar Hod,