arXiv subjects

Dharm Veer Singh

Publications and source records attributed to Dharm Veer Singh.

39 records · Page 3Linked to original sources

arXiv2015

Fermion Fields in BTZ Black Hole Space-Time and Entanglement Entropy

We study the entanglement entropy of fermion fields in BTZ black hole space-time and calculate pre- factor of the leading and sub-leading terms and logarithmic divergence term of the entropy using the discretized model. The leading term is the standard Bekenstein-Hawking area law and sub-leading term corresponds to first quantum corrections in black hole entropy. We also investigate the corrections to entanglement entropy for massive fermion fields in BTZ space-time. The mass term does not affect the area law.

hep-th↗

arXiv2014

Power Law Corrections to BTZ Black Hole Entropy

We study the quantum scalar field in the background of BTZ black hole and evaluate the entanglement entropy of the non-vacuum states. The entropy is proportional to the area of event horizon for the ground state, but the area law is violated in the case of non-vacuum states (first excited state and mixed states) and the corrections scale as power law.

hep-th↗

arXiv2013

Scalar Fields in BTZ Black Hole Spacetime and Entanglement Entropy

We study the quantum scalar fields in background of BTZ black hole spacetime. We calculate the entanglement entropy using the discretized model, which resembles a system of coupled harmonic oscillators. The leading term of the entropy formula is standard Bakenstein-Hawking entropy and sub-leading corresponds to quantum corrections to black hole entropy. We calculate the co-efficent of sub-leading logarithmic corrections numerically.

hep-th↗