Laboratory of theoretical physics ENS

About forty five people work at the LPTENS. Our research encompasses many areas in theoretical physics. We on the one hand study the quantization of gravity, mainly in the context of string theory, problems in high energy physics (in particular related to the experiments at the LHC collider at CERN), and questions in observational cosmology rooted in recent data. Our second emphasis covers numerous statistical physics problems connected to disordered systems, solid state physics, computer science, complex systems, and biology, often subjecting experimental data to analytical or numerical treatment. Common tools to both fields are the quantum field theory of particles or extended objects, supersymmetry, and the theory of classical or quantum totally integrable or scale invariant systems.



A conference on the gravitational waves "future Squeezing the of Gravitational Wave Detectors" will be led by David McClelland, Centers for Gravitational Physics, Australian National University, on March 23rd, 2016, 1:45 pm, room 235 C, 29 rue d’Ulm 75005 PARIS.


The bronze medal 2016 of the CNRS has been awarded to Aleksandra WALCZAK for its major contribution to the study of the fluctuations in the genetic networks and limits in the biological road marking which they involve.


The colloquium dedicated to the detection of the gravitational waves and the event GW150914 will be led by Patrice Hello from Université Paris-Sud on March 10th, 2016 at 1:30 am in room Conf IV:


The gravitational waves detected 100 years after the prediction of Einstein. The first campaign of grip of data of interferometers Advanced LIGO has just ended, and the collaboration LIGO-Virgo organizes simultaneous press conferences on February 11, 2016 at 4.30 pm in all the member countries to review the progress of the searches.


An exceptional conference of Frank WILCZEK (Nobel Prize in Physics 2004) was organized by the Department of Physics of Ecole Normale Supérieure on November 03rd, 2015 with title: "A Beautiful Question : Finding Nature’s Deep Design".


Article entitled "The future of the physics of the high energies", report of the Round Table of January 22nd, 2015 has just appeared in the number 46, the pages 12-13, of Reflections of the physics, the revue of the society of French physicists.


Alessandro TANZINI, Professor at International School for Advanced Studies ’SISSA’ of Trieste, Italy, visit us as invited professor from November 30, 2015 for two weeks. His fields of research are Supersymmetric quantum field theory, string theory and their geometrical aspects.


Paul WIEGMANN, Professor in the Department of Physics at the University of Chicago, will join us December 1st, 2015 as invited professor for one month. He specializes in theoretical condensed matter physics. A seminar will be delivered at 3.30 pm next December 11, 2015 at library of LPTENS: "Quillen holomorphic anomaly and Quantum Hall Effect".


The "Darwin Day" is organized by Aleksandra WALCZAK, Marco COSENTINO LAGOMARSINO and Hervé PHILIPPE on November 26, 2015 at 10 am - Salle Dussane - 45 rue d’Ulm - 75005 PARIS.


The call for Junior Research Chair postdoctoral positions is open with a October 18 deadline. See also Academic Jobs Online.


The Paris Biological Physics Community Day 2015 will be organized on October 23rd, 2015 at 9.30 am at Centre Culturel Irlandais - Salle Michel Guillaume, 5 rue des Irlandais, 75005 PARIS.


Press article on the 40th Anniversary Conference of LPTENS held from 21th to 23rd of January, 2015 at 29, rue d’Ulm, Paris
This conference was attended by 4 Nobel Prizes in physics, 2 recipients of the Fields Medal and other groups of researchers who are leaders in their respective fields.


We are happy to welcome Camille ARON as a Research Associate from October 1st, 2015. His work centers around out-of-equilibrium phenomena in statistical physics and condensed matter.


Grigory SIZOV, from King’s College London, will join us next October 1st, 2015 as invited professor for one month. His work centers around integrability in gauge theories and string theory.


The Institute of Theoretical Physics Philippe Meyer will welcome Zohar KOMARGODSKI, The Philippe Meyer Prize in Theoretical physics 2014, as invited professor from September 11, 2015 to October 05, 2015.


German SIERRA RODERO, Professor from University of Madrid, will be present from September 15, 2015 as invited professor for one month. His work centers around Integrated Models and Theoretical Condensed Matter. A theme day focused on ’Matrix Product States and Applications’ will take place Monday September 21, 2015 at LPTHE Jussieu from 10:00.


Jie GU, from University of Bonn, will join us next August 31st, 2015 as invited professor for one month. His work centers around string theory.


XLVth Institut d’été from August 19 to 28, 2015.


Chris QUIGG, Professor at Fermi National Accelerator Laboratory, USA, is visiting us as ENS invited professor. In the course of his visit, a seminar entitled "Celebrating Quarkonium: The First Years" was given last May 06, 2015, in Amphithéâtre Charpak, LPNHE, Jussieu. Two lectures on "Large Hadron Collider Physics: The Next Generation - Lecture 1" et "Large Hadron Collider Physics: The Next Generation - Lecture 2" have been given last May 13 & 20, 2015. A last lecture will be given on May 29, 2015 at 3 pm in Amphithéâtre Charpark, LPNHE, Jussieu.


Alexandra WALCZAK has been awarded le prix Jacques HERBRAND de l’Académie des Sciences 2014


The LPTENS and the LPTHE (Paris 6) will have a joint postdoctoral position available, beginning October 1, 2015, and for the duration of two or three years. The application proceeds via Academic Jobs Online.


The Laboratory celebrates its 40th Anniversary with a Conference to be held from Wednesday 21 January to Friday 23 January in the amphitheater Jules Ferry, 29 rue d’Ulm, Paris.


The LabEx Departmental grant will fund three postdoctoral positions in, amongst other fields, theoretical physics, starting September 1, 2015, for the duration of two or three years.

The Institute of Theoretical Physics Philippe Meyer will fund two postdoctoral positions in theoretical physics, starting from October 1, 2015 for the duration of two or three years. The application proceeds via Academic Jobs Online.


The Philippe Meyer Prize in Theoretical Physics 2014 is awarded to Zohar Komargodski.

Séminaires Darboux

Two joined events will happen in august:

- "Strings, Matrices, Integrability" conference, which will celebrate
Vladimir KAZAKOV et Ivan KOSTOV 60th birthdays, from august 18th to august 20th, 2014.

- LPTENS traditional Institut d’été from august 21st to august 29th, 2014.


Pierre FAYET has been elected member of the french academy


Costas KOUNNAS has been awarded the prize Gay-Lussac Humboldt


Slava RYCHKOV has been awarded the prize Fundamental physics prize/new horizons


Postdoctoral positions in Theoretical Physics

The Laboratoire de Physique Théorique de l’École normale supérieure (Paris) invites applications for approximately six postdoctoral positions in theoretical physics, starting September 1, 2014.

The positions are variously funded by national ANR grants, a European ERC grant, the Institut Philippe Meyer as well as a Departmental LabEx grant.

Projects in particle and astroparticle physics, field and string theory, statistical physics and its applications in condensed matter physics, biophysics and information theory, are especially welcome.

The deadline for submission depends on the offer. A CV, a research project and three letters of recommendation should be included. We recommend that applicants apply to all relevant sources of funding.

Click here for more details on these positions and the various application procedures.

03/10/2013 The Institute of Theoretical Physics Philippe Meyer will fund two postdoctoral positions in Theoretical Physics starting from September 1, 2014 for the duration of two or three years.

27/06/2013 43rd SUMMER INSTITUTE (August 19th - August 30th 2013)

07/06/2013 Jean ILIOPOULOS has been awarded the PRIX DES 3 PHYSICIENS

03/04/2013 Our colleague Marc Thierry Jaekel has been distinguished as "Outstanding Referee" by Physical Review for 2012. Congratulations!

14/03/2013 We are happy to have Massimo Bianchi, professor at the University of Rome, join us for three months as invited professor. His work focusses on questions in string theory.

01/03/2013 We are happy to have Hikaru Kawai, professor at the University of Kyoto, join us for a month as invited professor. His recent work focusses on questions on space-time in string theory.

09/01/2013 The Physics Department at the Ecole Normale Superieure opens a new Assistant Professor position. The applicant research lines are expected to be about Statistical Physics.

A NEW PARTICLE has been discovered with 99,9999% confidence level
at CERN by the collaborations ATLAS and CMS at the LHC. It has the characteristics of the famous
HIGGS BOSON whose hunt has long been one of the top priorities for particle physics.

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