Abstract
Starting from Veneziano's 1968 amplitude, String Theory has experienced forty years of intense development and brought to astonishing achievements in several areas of Particle Physics and Cosmology. It is time to try and iden- tify its basic principles. The proposed twelve-week extended workshop aims at addressing the most acute and urgent problems in String Theory, including non-perturbative formulations, vacuum stabilization, and holographic inter- pretation, and to draw lines of attack for future investigations. The workshop will start with a short opening Conference in early April. A longer mid-term School will take place in June. The "Strings 2009" Conference to be held in Rome will mark the end of the workshop late in June.

Topics
- Quest for basic principles of string theory
- Covariant quantization and pure spinor approach
- Gauged supergravity and flux compactifications
- D-brane instantons and other non-perturbative effects
- Topological strings and microstate counting
- Black Holes and Attractors
- Holographic correspondence and higher spin theories
- String dynamics in curved and time-dependent backgrounds
- Applications to particle physics and cosmology

The application form has been closed on November,2 due to the high number of applications.

Organizers
Costas Bachas (Ecole Normale Superieure, Paris, France), Massimo Bianchi (University of Roma Tor Vergata, Italy), Michel Green (DAMTP, Cambridge University, UK), Jeff Harvey (Chicago University, USA), Augusto Sagnotti (Scuola Normale Superiore, Pisa, Italy), Ashoke Sen (Harish-Chandra Research Institute, Allahabad, India)

Related events
New Perspectives in String Theory: opening conference (Conference) - Apr 06, 2009

New Perspectives in String Theory School (School) - Jun 08, 2009

Talks

Date	Speaker	Title	Type	Useful Links
Apr 14, 2009 - 14:00	D. Martelli	Galilean conformal field theories and holography	Seminar
Apr 15, 2009 - 11:00	B. Pioline	D-instantons, black holes and hypermultiplets	Seminar
Apr 16, 2009 - 11:00	E. Dudas	On stringy instanton effects in orientifolds	Seminar
Apr 21, 2009 - 11:00	A. Dabholkar	Wall-crossing, Holography, and Mock Modular Forms	Seminar
Apr 22, 2009 - 11:00	M. Staudacher	AdS/CFT Integrability: Spectral Problem and Bethe's Ansatz	Seminar
Apr 23, 2009 - 11:00	N. Beisert	AdS/CFT Integrability: Spacetime Scattering Amplitudes	Seminar
Apr 23, 2009 - 14:00	E. Sokatchev	TBA	Seminar
Apr 28, 2009 - 11:00	D. Francia	Unconstrained higher spins of any symmetry	Seminar		Slides
Apr 29, 2009 - 11:00	G. Bossard	Extremal black holes and nilpotent orbits	Seminar
Apr 30, 2009 - 11:00	S. Giddings	The bulk S-matrix from AdS/CFT?	Seminar
May 05, 2009 - 11:30	D. Luest	Open string scattering amplitudes for Standard Model quivers and their application for the LHC	Seminar		Slides
May 06, 2009 - 11:30	P. Di Vecchia	Kaehler metrics and Yukawa couplings of twisted chiral strings in magnetized brane models	Seminar		Slides
May 06, 2009 - 14:00	M. Taylor	Horava-Lyfschitz Theory	Informal Discussion
May 07, 2009 - 11:30	A. Tseytlin	On the spectrum of strings in AdS5 x S5	Seminar		Slides
May 08, 2009 - 11:30	A. Marshakov	Integrability in gauge theories and topological strings	Seminar		Slides
May 12, 2009 - 11:30	G. Semenoff	Holographic Giant Polyakov Loops	Seminar
May 13, 2009 - 11:30	M. Taylor	Holographic realization of gauge mediated supersymmetry breaking	Seminar
May 14, 2009 - 11:30	M. Grana	E7 formulation of N=2 backgrounds	Seminar		Slides
May 15, 2009 - 11:30	H. Samtleben	Nonabelian tensor fields in supergravity	Seminar
May 19, 2009 - 11:30	R. Blumenhagen	GUTs from Type IIB Orientifolds	Seminar
May 20, 2009 - 11:30	S. Stieberger	Disk scattering of open and closed strings	Seminar		Slides
May 21, 2009 - 11:30	J. Minahan	Integrability in superconformal Chern-Simons	Seminar
May 22, 2009 - 11:30	A. Zaffaroni	Chern-Simons theories and the AdS_4/CFT_3 correspondence	Seminar
May 26, 2009 - 11:30	A. Faraggi	Novel symmetries in heterotic string vacua	Seminar		Slides
May 27, 2009 - 11:30	G. Gibbons	The Bernstein conjecture and the fate of the 8-brane	Seminar		Slides
May 28, 2009 - 11:30	V. Niarchos	Blackfolds: a world-volume effective theory for higher-dimensional black holes.	Seminar
May 29, 2009 - 11:30	A. Van Proeyen	The embedding tensor formalism with fields and antifields	Seminar		Slides
Jun 01, 2009 - 14:30	J. Gomis	Space-time Supersymmetry with Vector and Scalar Supercharges	Seminar		Slides
Jun 03, 2009 - 11:30	A. Hanani	Brane Tilings, M2 Branes and Chern Simons theories	Seminar
Jun 04, 2009 - 11:30	H. Elvang	Superamplitudes in maximally super theories	Seminar
Jun 05, 2009 - 11:30	L. Rastelli	AdS/CFT in the Veneziano Limit	Seminar