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	Yes	Order	1	Time	14:00 - 14:30
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	Yes	Order	1	Time	14:00 - 14:30
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.