ARAÚJO, R. D. R.; R. Dárlla.; http://lattes.cnpq.br/0866573384817086; ARAÚJO, Roberta Dárlla Reinaldo de.
Resumo:
In this work we study black string solutions under the consideration of rainbow gravity.
We have analytically obtained the solution for four-dimensional black strings in terms of
the functions f(E/Ep) and g(E/Ep) that set the energy scale where the rainbow gravity
becomes relevant. We have also obtained the Hawking temperature for the black string,
from which we could see that the rainbow functions play the role of increasing or decreasing
the Hawking temperature for a given horizon radius depending on the choice of such
rainbow functions. We have computed the entropy, speciĄc heat and free energy for the
black string. The entropy and speciĄc heat exhibit a rainbow dependence while the free
energy is not modiĄed by the rainbow functions.