Programme

I.8 -- Invited, VCTP-45

Date: Wednesday, 14 October 2020

Time: 10:30 - 11:00

Online presentation

Hawking Flux of Black Hole with nonlinear soft-hairs

Shingo Takeuchi

Phenikaa University

I will report the Hawking flux from a black hole with soft hair by the anomaly cancellation method . My analysis takes into account the supertranslation hair to the quadratic order unlike the earlier studies considering the black hole with linear supertranslation hair, which yields the angular dependent horizon. As a result, highly nontrivial kinetic-mixings appear among the spherical Kaluza-Klein modes of the (1+1)d near-horizon reduced theory, which obscures the traditional derivation of the Hawking flux. However, after a series of field re-definitions, we can disentangle the mode-mixings into canonical normal modes, but the reduced metrics for these normal modes are mode-dependent. Despite of this, the resultant Hawking flux turns out to be mode-independent and remains the same as the Schwarzschild's one.

Presenter: Shingo Takeuchi