Talk detail

Participant	Rovelli, Carlo
Institution	CPT-CNRS - case 907, Luminy - Marseille - Bouches-du-Rhone - France

Session	PS	Accepted		Order	Time
Talk	Oral abstract	Title	Loop Quantum Gravity
Co-authors
Abstract	There have been momentum developments in the loop approach to quantum gravity during the last few years. Among others: the definition of finite transition amplitudes with a positive cosmological constant and the first derivation of the Bekenstein-Hawking entropy S=A/4 with the correct 1/4 factor for non extremal black holes. I summarize the results achieved and the open problems.

Session	QG1	Accepted		Order	Time
Talk	Oral abstract	Title	Covariant dynamics
Co-authors
Abstract	I summarize the state of the art in the definition of the covariant form of the LAC dynamcs.

Session	QG4	Accepted		Order	Time
Talk	Oral abstract	Title	Recent developments in Black Hole physics
Co-authors
Abstract	Our understanding of quantum black hole physics has made a substantial step ahead in the last year, thanks mostly to the work of Ghosh-Frodden-Perez and Bianchi. We now dispose of a direct derivation of the Bekenstein-Hawking entropy for ordinary black holes, based solely on the quantum microphyiscs of gravity, and without the need of tuning parameters. I summarize the state of the art, comparing the different approaches, and discussing the open questions.