Note on Entanglement Temperature for Low Thermal Excited States in Higher Derivative Gravity

Understand

We investigate the entanglement temperature of a small scale subsystem in low excited states by using holographic method.

• Especially, we study the entanglement entropy and entanglement temperature in higher derivative gravities which are considered as low thermal excitation of pure AdS gravity.
• We find that the entanglement entropy are related to the central charges of boundary CFT.
• The relation between the variance of entanglement entropy and energy of a small scale subsystem has been also obtained.