کد مقاله کد نشریه سال انتشار مقاله انگلیسی نسخه تمام متن
1853027 1528823 2014 7 صفحه PDF دانلود رایگان
عنوان انگلیسی مقاله ISI
Singularity free gravitational collapse in an effective dynamical quantum spacetime
ترجمه فارسی عنوان
فروپاشی گرانشی آزاد انحصاری در فضای زمان کوانتومی موثر است
کلمات کلیدی
موضوعات مرتبط
مهندسی و علوم پایه فیزیک و نجوم فیزیک هسته ای و انرژی بالا
چکیده انگلیسی

We model the gravitational collapse of heavy massive shells including its main quantum corrections. Among these corrections, quantum improvements coming from Quantum Einstein Gravity are taken into account, which provides us with an effective quantum spacetime. Likewise, we consider dynamical Hawking radiation by modeling its back-reaction once the horizons have been generated. Our results point towards a picture of gravitational collapse in which the collapsing shell reaches a minimum non-zero radius (whose value depends on the shell initial conditions) with its mass only slightly reduced. Then, there is always a rebound after which most (or all) of the mass evaporates in the form of Hawking radiation. Since the mass never concentrates in a single point, no singularity appears.

ناشر
Database: Elsevier - ScienceDirect (ساینس دایرکت)
Journal: Physics Letters B - Volume 733, 2 June 2014, Pages 169–175
نویسندگان
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