Research

String theory

My research is principally on the landscape in string theory, in particular involving flux compactifications (see my review article).

String theory at IPhT

String theory in greater Paris region

Selected Conferences organized

Strings 2025, Abu Dhabi, January 2025 (co-organized among 10, 300 participants)

GenHET meeting in string theory, CERN, April 2024 (co-organised with Y. Lozano, M.Tomasevic and C. Zwikel, 120 participants)

Deconstructing the string landscape, lPhT, November 2023 (co-organized with A. Herraez and N. Kovensky, 100 participants)

Planck 2022, Paris, May 2022 (co-organized among 9, 200 participants)

Eurostrings 2022 , Lyon, April 2022 (co-organized among 9, 250 participants)

Geometry and swampland, Banff (virtual), January 2022 (co-organized with M.Petrini and I. Valenzuela, 250 participants)

de Sitter constructions in String Theory, lPhT, December 2019 (co-organized with I. Bena and A. Retolaza, 50 participants)

1st Workshop on high energy theory and gender, CERN, September 2018 (co-organized with 9 more researchers, 90 participants)

String dualities and geometry, Centro Atomico Bariloche, Argentina, January 2018 (co-organized with G. Aldazabal, D. Marqués and C. Nuñez, 60 participants)

Second workshop on string theory and gender, IHP, Paris, June 2016 (co-organized with R. Minasian and M. Petrini, 50 participants)

de Sitter and microstate landscapes in String Theory, CEA/Saclay, June 2015 (co-organized with I. Bena, R. Minasian and S. Kuperstein, 70 participants)

18^th Itzykson meeting “Frontiers of String Theory”, CEA/Saclay, July 2013

Forum de la théorie, CEA/Saclay, April 2013

The supersymmetric, the extremal and the ugly – solutions in string theory, Saclay, 15-17 November 2011

String Phenomenology 2010, College de France, Paris, 5-9 July 2010

14th Itzykson meeting, “Recent Advances in String Theory”, IPhT, 17-19 June 2009

CV

Here is my CV

Publications: Inspire database

Talks

Some conference talks

• Accelerated Expansion, de Sitter and strings: from the swampland to the landscape, Madrid, September 2024
• String Phenomenology 2024, Padova, June 2024
• Theories, Univers et Gravité, Paris, October 2023
• String Phenomenology 2023, Daejong, July 2023
• String Phenomenology 2022, Liverpool, July 2022
• String Phenomenology 2021, organized by universities in Boston, virtual, June 2021
• Strings 2021, organized by ICTP-Saifr, Sao Paulo, virtual, June 2021
• String Phenomenology 2019, CERN, June 2019
• Effective Theories: from gravity to Cosmology, Itzykson Conference, June 2019
• Geometric Methods for String Cosmology, Oaxaca, May 2019
• Iberian Strings, Barcelona, January 2019
• Recent advances in T/U-dualities and Generalized Geometries, Zagreb, June 2017
• Geometry and Physics, Ringberg castle, Germany, November 2016
• Supergravity, what’s next?, Galileo Galilei Institute, Florence, October 2016
• “Strings at the self-dual radius: symmetry enhancement and winding modes in Double Field Theory”, The string theory Universe, Leuven, September 2015 (slides)
• “Generalizing the geometry of spaetime: from gravity to supergravity and beyond…?”, SUSY 2013, Trieste, August 2013 (slides, video)
• “String compactifications and (non) geometry”, review talk, 41st Ahrensoop Conference, Berlin, August 2012 (slides)
• “Anti-branes in Klebanov-Strassler: to be or not to be”, String Phenomenology 2012, Cambridge, June 2012 (slides, video)
• “Constructing metastable vacua in Klebanov-Strassler”, Strings 2011, Uppsala, July 2011 (slides, video)
• “Exceptional generalized Geometry and N=2 backgrounds”, Workshop on Generalized Geometries, Texas A&M, College Station, March 2011 (slides)
• “Generalized Geometric Compactifications”, 12th Marcel Grossmann meeting, paris, July 2009 (slides)
• “N=1 flux vacua on twisted tori”, String Phenomenology 2007, Frascati, June 2007 (abstract, slides)
• “Generalized geometries and N=1 vacua”, 38^th Ahrensoop Conference, Berlin, September 2006 (slides)
• “The low energy limit of string theory and its compactifications with background fluxes”, Journées Physique et Mathématiques, IHES, Bures sur Yvette, November 2005 (abstract, slides, proceedings)
• “Hitchin functionals in supergravity”, Workshop on N=1 Compactifications, Fields Institute, Toronto, March 2005 (slides, audio)
• “Supersymmetric backgrounds from Generalized Calabi-Yau manifolds”, Strings 2004, Paris, July 2004 (slides)
• “Soft supersymmetric terms in Calabi-Yau compactifications with D-branes and fluxes”, IHP, Paris, December 2003 (slides)

Selected science popularisation talks

• “Cordes à cordes”, presentation at “L’espace Mendes France”, Potiers, Octobre 2023
• “La théorie des cordes” , IPhT, CEA/Saclay, February 2016 (slides)

Teaching

• High Energy Physics Master, Ecole Polytechnique, course: string theory, 2016-date

Short courses:

• “The string theory landscape”, CERN Winter school, February 2025
• “Superstrings and D-branes”, Solvay Amsterdam-Brussels-Geneva-ParisDoctoral School on Quantum Field Theory, Strings and Gravity, CERN, November 2024
• “The string theory landscape”, Arnold Sommerfeld School The Quantum Gravity Swampland and its consequences for the observable world, Munich, October 2023
• “String compactifications and fluxes”, School on Geometric and Algebraic Methods for String Theory, University of San Martin, Argentina, October 2019
• “String Theory, dimensional reduction and effective actions”, University of Buenos Aires, November 2016
• “Effective actions”, GGI school String-Pheno-Cosmo 2015, Florence, October 2015
• Short course, “String Compactifications”, IPhT, CEA/Saclay, March-April 2013, joint with Hagen Triendl (lecture notes)
• Short course “Flux compactifications and generalized geometries” given at RTN Winter School, CERN, Geneva in January 2006 (slides, proceedings)