Entropy for gravitational Chern-Simons terms by squashed cone method

Understand

In this paper we investigate the entropy of gravitational Chern-Simons terms for the horizon with non-vanishing extrinsic curvatures, or the holographic entanglement entropy for arbitrary entangling surface.

• In 3D we find no anomaly of entropy appears.
• But the squashed cone method can not be used directly to get the correct result.
• For higher dimensions the anomaly of entropy would appear, still, we can not use the squashed cone method directly.