09 بهمن 1401
سعيده صادقيان

سعیده صادقیان

مرتبه علمی: استادیار
نشانی: دانشگاه مازندران
تحصیلات: دکترای تخصصی / فیزیک-ذرات بنیادی
تلفن: 011-35302442
دانشکده: دانشکده علوم پایه

مشخصات پژوهش

عنوان Hidden symmetries of near-horizon extremal Kerr-AdS-NUT geometries
نوع پژوهش مقاله چاپ شده
کلیدواژه‌ها
Hidden Symmetries, Killing Tensor, Integrability, Black Hole
مجله Physical Review D - Particles, Fields, Gravitation and Cosmology
شناسه DOI 10.1103/PhysRevD.98.084031
پژوهشگران سعیده صادقیان (نفر اول)

چکیده

We study the hidden symmetries, the symmetries associated with Killing tensors, of the near-horizon geometry of odd-dimensional Kerr-AdS-NUT black holes in two limits: generic extremal and extremal vanishing horizon (EVH) limits. Starting from a Kerr-AdS-NUT black hole in ellipsoidal coordinates which admit integrable geodesic equations, we obtain the near-horizon extremal and EVH geometries and their principal and Killing tensors by taking the near-horizon limit. We explicitly demonstrate that geodesic equations are separable and integrable on these near-horizon geometries. We also compute the constants of motion and read the Killing tensors of these near-horizon geometries from the constants of motion. As expected, they are the same as the Killing tensors given by taking the near-horizon limit.