String Theory seminar - Pablo Bueno Seminar
- Time:
- 13:00 - 14:00
- Date:
- 2?December?2015
- Venue:
- 54/10031 (10C)
For more information regarding this seminar, please email Da-Wei Pang at d.pang@soton.ac.uk .
Event details
Universal entanglement of singular surfaces
The entanglement entropy in three-dimensional conformal field theories (CFTs) receives a logarithmic contribution characterized by a regulator-independent function a(θ) when the entangling surface contains a sharp corner with opening angle θ. In the smooth-surface limit, (θ → π), this corner contribution vanishes as a(θ) = σ(θ?π)^2. I will review our recent conjecture that for any three-dimensional CFT, this corner coefficient σ is determined by C_T, the coefficient appearing in the two-point function of the stress tensor through the relation σ/CT = π^2/24. I will also describe the extension of this conjecture to general Re?nyi entropies and higher-dimensional CFTs, and comment on the implications of our findings.
Speaker information
Pablo Bueno , KU Leuven, Belgium.