Thursday 4 June 2020 |

Events for day: Thursday 14 May 2020 |

IPM holography virtual seminarBULK ENTANGLEMENT AND HOLOGRAPHY PHYSICS We argue that the entanglement between regions of target space of a large N field theory with a smooth holographic dual provides a precise meaning to entanglement of a region in the bulk. We conjecture that the leading answer for this quantity is A/4G, where A is the area of the entangling surface and G is Newton's constant. For specially chosen regions in Dp brane backgrounds, we provide a precise map to the target space of the dual theory. Our conjecture then leads to the conclusion that this target space entanglement entropy should scale like O(N^2) which is quite plausible in a system with O(N^2) degrees of freedom. Recent numerical adva ... 11:00 - 12:00 IPM holography virtual seminarBULK ENTANGLEMENT AND HOLOGRAPHY School PARTICLES AND ACCELERATORS Abstract: We argue that the entanglement between regions of target space of a large N field theory with a smooth holographic dual provides a precise meaning to entanglement of a region in the bulk. We conjecture that the leading answer for this quantity is A/4G, where A is the area of the entangling surface and G is Newton's constant. For specially chosen regions in Dp brane backgrounds, we provide a precise map to the target space of the dual theory. Our conjecture then leads to the conclusion that this target space entanglement entropy should scale like O(N^2) which is quite plausible in a system with O(N^2) degrees of freedom. Recent nume ... 11:00 - 12:00 Theory Weekly Seminar (TWS)- Zoom MeetingFlat space holography and complex SYK School PARTICLES AND ACCELERATORS Abstract: This talk is based on the recent work 1911.05739 which provides a flat space holographic correspondence in two bulk spacetime dimensions. The gravity side is described by the Weyl transformed version of the matterless CGHS model. The field theory side follows from the complex Sachdev-Ye-Kitaev model in the limit of large specific heat and vanishing compressibility. We derive the boundary action analogous to the Schwarzian as the key link between gravity and field theory sides and show that it coincides with the geometric action of Warped Schwarzian theory. 11:00 - 12:00 Weekly WebinarProfiling of SARS-CoV-2 Sequences from Iranian related COVID-19 patients School BIOLOGICAL SCIENCES ... |