Lecture 10: Fuzzballs, firewalls and complementarity

We discussed three possible resolutions to the monogamy paradox: the fuzzball proposal, the firewall proposal and a set of resolutions that go by the name of "A=R_b, complementarity, or ER=EPR"

The fuzzball and firewall proposals state that the interior does not exist and so they resolve the monogamy paradox by getting rid of the entanglement between modes across the horizon.

The spirit of the resolution using complementarity is that the degrees of freedom inside the black hole can be written as scrambled versions of degrees of freedom from the early radiation. In later lectures, we will subsume this resolution into a broader "principle of holography of information".

We discussed evidence for each proposal and also possible weaknesses.

PDF of lecture 10 notes.pdf