1Center for Gravitation and Cosmology, College of Physical Science and Technology, Yangzhou University2Center for Gravitation and Cosmology, College of Physical Science and Technology, Yangzhou University, Yangzhou 225009, China
1College of Mathematics and Science, Yangzhou University1College of Mathematics and Science, Yangzhou University, Yangzhou 225009, China
2Center for Gravitation and Cosmology, College of Physical Science and Technology, Yangzhou University2Center for Gravitation and Cosmology, College of Physical Science and Technology, Yangzhou University, Yangzhou 225009, China
In this paper, we investigate the quantum scalar fields in a massive BTZ black hole background. We study the entropy of the system by evaluating the entanglement entropy using a discretized approach. Specifically, we fit the results with a log -modified formula of the black hole entropy, which is introduced by quantum correction. The coefficients of leading and sub-leading terms affected by the mass of graviton are numerically analyzed.