Abstract
In this work, we study the evolution of primordial black holes within the context of loop quantum cosmology. First we calculate the scale factor and energy density of the Universe for different cosmic era and then taking these as inputs, we study evolution of primordial black holes. From our estimation it is found that accretion of radiation does not affect evolution of primordial black holes in loop quantum cosmology. We also conclude that due to slow variation of scale factor, the upper bound on initial mass fraction of presently evaporating PBHs are much greater in loop quantum cosmology than the standard case.
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Acknowledgements
One of the authors, B. Nayak would like to thank the Council of Scientific and Industrial Research, Government of India, for the award of SRF, F. No. 09/173(0125)/2007-EMR-I. The authors are thankful to the Institute of Physics, Bhubaneswar, India, for providing library and computational facilities. The author, M. Jamil would like to thank the warm hospitality of Eurasian National University, Astana, Kazakhstan where part of this work was completed.
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Dwivedee, D., Nayak, B., Jamil, M. et al. Evolution of Primordial Black Holes in Loop Quantum Cosmology. J Astrophys Astron 35, 97–106 (2014). https://doi.org/10.1007/s12036-014-9276-y
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DOI: https://doi.org/10.1007/s12036-014-9276-y