Okinawa Institute of Science and Technology (OIST)
Talks by Linqing Chen
Virasoro hair and entropy for axisymmetric Killing horizons
Linqing Chen
Okinawa Institute of Science and Technology (OIST)
TBA
Linqing Chen
Okinawa Institute of Science and Technology (OIST)
Central extension and black hole entropy
Linqing Chen
Okinawa Institute of Science and Technology (OIST)
Recent developments on asymptotic symmetries and soft modes have deepened our understanding of black hole entropy and the information paradox. The asymptotic symmetry charge algebra of certain classes of spacetimes could have a nontrivial central extension, which plays a crucial role in black hole physics. The Cardy formula of the asymptotic density of states of the dual CFT has been famously used to reproduce the BekensteinHawking entropy formula.
Central extension in gravity
Linqing Chen
Okinawa Institute of Science and Technology (OIST)
The asymptotic symmetry charge algebra of certain class of spacetimes could have a nontrivial central extension, which measures the nonequivariance of the charges of the large gauge transformations. The Cardy formula of the dual CFT has been famously used to derive black hole entropy. However, it remains obscure from the point of view of gravity why such a constant on the gravitational phase space could encode the information about the density of black hole microstates, and what the degrees of freedom accounting for the black hole entropy truly are.
Change of vertex amplitude under coarse graining In Euclidean spinfoam model I
Linqing Chen
Okinawa Institute of Science and Technology (OIST)
Phenomenology  1

Jonathan Granot University of Hertfordshire

Julien Bolmont Université Pierre et Marie Curie (UPMC)

Giovanni Palmisano Sapienza University of Rome

Linqing Chen Okinawa Institute of Science and Technology (OIST)
Physics in Nature Presentation: Why Do Clothes, Paper, Wood & Soil Look Darker When They Are Wet?
Linqing Chen
Okinawa Institute of Science and Technology (OIST)