Loop Quantum Black Hole Extensions Within the Improved Dynamics Gambini, Rodolfo Olmedo Nieto, Javier Antonio Pullin, Jorge Loop quantum gravity Black holes Quantum field theory Spin networks General relativity This work was supported in part by Grant NSF-PHY-1903799, funds of the Hearne Institute for Theoretical Physics, CCT-LSU, Pedeciba, Fondo Clemente Estable FCE_1_2019_1_155865 and Project. No. FIS 2017-86497-C2-2-P of MICINN from Spain. J.O. acknowledges the Operative Program FEDER2014-2020 and the Consejeria de Economia y Conocimiento de la Junta de Andalucia. We continue our investigation of an improved quantization scheme for spherically symmetric loop quantum gravity. We find that in the region where the black hole singularity appears in the classical theory, the quantum theory contains semi-classical states that approximate general relativity coupled to an effective anisotropic fluid. The singularity is eliminated and the space-time can be continued into a white hole space-time. This is similar to previously considered scenarios based on a loop quantum gravity quantization. 2021-07-14T11:36:16Z 2021-07-14T11:36:16Z 2021-06-11 info:eu-repo/semantics/article Gambini R, Olmedo J and Pullin J (2021) Loop Quantum Black Hole Extensions Within the Improved Dynamics. Front. Astron. Space Sci. 8:647241. doi: [10.3389/fspas.2021.647241] http://hdl.handle.net/10481/69690 10.3389/fspas.2021.647241 eng http://creativecommons.org/licenses/by/3.0/es/ info:eu-repo/semantics/openAccess Atribución 3.0 España Frontiers Research Foundation