Thursday 4 June 2020 |

Events for day: Thursday 28 May 2020 |

IPM holography virtual seminarLocal quenches, bulk entanglement entropy and a unitary Page curve PHYSICS Quantum corrections to the entanglement entropy of matter fields interacting with dynamical gravity have proven to be very important in the study of the black hole information problem. We consider a one-particle excited state of a massive scalar field infalling in a pure AdS3 geometry and compute these corrections for bulk subregions anchored on the AdS boundary. In the dual CFT2, the state is given by the insertion of a local primary operator and its evolution thereafter. We calculate the area and bulk entanglement entropy corrections at order O(N^0), both in AdS and its CFT dual. The two calculations match, thus providing a non-trivial chec ... 11:00 - 12:00 IPM holography virtual seminarLocal quenches, bulk entanglement entropy and a unitary Page curve School PARTICLES AND ACCELERATORS Abstract: Quantum corrections to the entanglement entropy of matter fields interacting with dynamical gravity have proven to be very important in the study of the black hole information problem. We consider a one-particle excited state of a massive scalar field infalling in a pure AdS3 geometry and compute these corrections for bulk subregions anchored on the AdS boundary. In the dual CFT2, the state is given by the insertion of a local primary operator and its evolution thereafter. We calculate the area and bulk entanglement entropy corrections at order O(N^0), both in AdS and its CFT dual. The two calculations match, thus providing a non-tr ... 11:00 - 12:00 Theory Weekly Seminar (TWS)- Zoom MeetingSuperrotations in Harmonic gauge School PARTICLES AND ACCELERATORS Abstract: In this talk, I show how infinitesimal superrotations can be expressed, in harmonic gauge, in terms of metric components evaluated at the boundaries of null infinity that are subleading in a large radius expansion. Then I recast the spin memory observable in terms of these boundary values. |