Dr. Jean-Luc Lehners

Leader of the ERC Research Group "Theoretical Cosmology"


Max-Planck-Institut für Gravitationsphysik

Am Mühlenberg 1
D-14476 Potsdam


Phone: +49 331 567-7316
Fax: +49 331 567-7297

E-mail: jlehners@aei.mpg.de

Curriculum Vitae

Personal Data

Nationality: Luxembourg

Current Position

2010- Max Planck Institute for Gravitational Physics
(Albert Einstein Institute)
Leader of the ERC Research Group "Theoretical Cosmology"

Positions Held

2010 Perimeter Institute for Theoretical Physics
Postdoctoral Fellow
2007-2010 Princeton University - Princeton Center for Theoretical Science
Postdoctoral Fellow
2005-2007 University of Cambridge – DAMTP
Research Associate


2001-2005 Imperial College London - PhD Physics
Advisor: Professor K.S. Stelle
Thesis entitled “Braneworlds from Supergravity”
2000-2001 University of Cambridge - Part III Mathematics
Grade: Distinction
1997-2000 Imperial College London - BSc Physics with Theoretical Physics
Grade: First Class Honours
1990-1997 Lycée Michel Rodange, Luxembourg
Grade: Très bien


Fluent in English, French, German, Luxembourgish

Third-Party Funds


ERC Consolidator Grant
Project title: Quantum Effects in Early Universe Cosmology (CoG 772295)
Value: 1.24 million €
Project dates: 01.09.2018 – 31.08.2023

ERC Starting Grant
Project title: String Cosmology and Observational Signatures (StG 256994)
Value: 1.14 million €
Project dates: 01.12.2010 – 30.11.2015

Awards and Scholarships


Grant of the Max Planck Society
Awarded for an extension of the Theoretical Cosmology group
Value: 565,000 €

Grant of the Max Planck Society
Awarded for an extension of the Theoretical Cosmology group
Value: 460,000 €

2010 Prix Lions
Prize awarded yearly by the Lions Club Luxembourg for cultural or scientific merits

2009 Gravity Research Foundation Essay Competition – Honorable Mention
Essay The Return of the Phoenix Universe, with P. Steinhardt and N. Turok

2002-2005 Bourse Formation Recherche
Awarded by the Luxembourg Ministry of Culture, Higher Education and Research

2002 Valerie Myerscough Prize, University of London




PPARC Scholarship

King's College Scholarship,
King's College Cambridge

Chevening Scholarship, British Council

2000 Governor’s BSc Prize in Physics, best final year student in Physics, Imperial College

1999 Staff Prize, best second year student in Physics, Imperial College

1999 Stanley Raimes Memorial Prize
Awarded for outstanding performance in Mathematics at Imperial College

1998 Matthews Memorial Prize, best first year Physics student, Imperial College

Supervision of Graduate Students

2019- Caroline Jonas
2017- Alice Di Tucci
2015-2019 Sebastian Bramberger
2013-2019 Enno Mallwitz
2013-2015 Anna Ijjas
2012-2016 Angelika Fertig

Supervision of Postdocs

2019- Jérôme Quintin
2019- Ana Alonso Serrano
2018- Sayantan Choudhury
2015- Shane Farnsworth
2012-2015 Rhiannon Gwyn
2012-2014 Lorenzo Battarra
2011-2014 Michael Koehn



Quantum cosmology lectures, IMPRS programme, Mallorca, Spain

2016 Cosmology lecture course, Humboldt Universität, Berlin

2014 Lecturer, Autumn Blockkurs 2014, Graduiertenkolleg "Masse, Spektrum, Symmetrie", Humboldt Universität, Berlin

2014 Lecturer at the Advanced String School 2014, organized by the Institute of Physics, Bhubaneswar, India

2014 Lecturer at the University of Sussex School "From Classical to Quantum GR", Brighton, UK

2012 Lectures on "Cosmology" at the Jürgen Ehlers Spring School for 3rd year undergraduates, Albert Einstein Institute, Germany

2011 IMPRS Lectures on "Early Universe Cosmology" for graduate students, Albert Einstein Institute, Germany

2009 Lecturer at the "Summer School on Particle Physics, Cosmology and Strings" at Perimeter Institute, Canada

2004-2005 Example classes for the Unification course at Imperial College London

2002-2004 Example classes for the General Relativity course at Imperial College London

Organization of Scientific Meetings

2017 Connections between Cosmology, Strong Gravity and Quantum Theory, Ringberg castle, February 15th- 18th

2016 Emergent Space-time in Quantum Gravity and Fundamental Cosmology, Albert Einstein Institute (AEI), September 26th – 29th

2014 DESY Theory Workshop, September 23rd – 26th

2014 Quantum Gravity and Fundamental Cosmology II, AEI, March 3rd- 6th

2013 Quantum Gravity and Fundamental Cosmology, AEI, March 5th- 8th

2011 Challenges for Inflationary Cosmology, Perimeter Institute, July 11th- 15th

2008-2009 Big Bang and Beyond (year-long program), Princeton Center for Theoretical Science

Institutional Responsibilities

2019- Ombudsperson for the Albert Einstein Institute

2015-2019 Colloquium organizer

2005-2007 Organizer of the weekly Cambridge Cosmology Lunches

Commissions of Trust

2019 Swiss National Science Foundation, member of the panel for COST projects

2016 Member of the Jury at the Falling Walls Lab, Berlin, November 8th

2012-2014 Member of the works council, Albert Einstein Institute

2011- Member of the Advisory Board, Max Planck Partner Group on Cosmology and Gravity, Trivandrum, India

Invited Talks (selected)

2019 CP-3 Origins, University of Southern Denmark, September 23rd
2019 LPTHE, Université Sorbonne - Jussieu, Paris, September 17th
2019 Autonomous University of Barcelona, April 25th
2019 EPFL Lausanne, March 11th
2018 Colloquium, Albert Einstein Institute, Hannover, December 13th
2018 Quantum Universe conference, CECs, Valdivia, Chile, November 13th
2018 Simons Summer workshop on Forefronts in Cosmology and Numerical General Relativity, Salzburg, July 7th
2018 Plenary Speaker, 15th Marcel Grossmann meeting, Rome, July 2nd
2018 University of Luxembourg, June 27th
2018 Spring Cosmology meeting, DESY Zeuthen, May 18th
2018 Colloquium, Heidelberg, May 3rd
2018 Brussels, seminar, April 25th
2018 University of Amsterdam, seminar, March 5th
2017 Path Integral for Gravity, Perimeter Institute, November 14th
2017 Columbia University, seminar, November 13th
2017 Princeton University, gravity group seminar, November 10th
2017 DESY Theory workshop, Hamburg, September 28th
2017 Bouncing scenarios in cosmology, Perimeter Institute, June 28th
2017 Bangs, Bounces, Black Holes and Bubbles, Princeton University, May 11th
2017 MIT, joint Tufts/MIT seminar, March 14th
2016 Keynote talk, Communicability and Cosmology, Humboldt University, July 7th
2016 Cosmological Frontiers in Fundamental Physics, Perimeter Institute, June 15th
2016 PCTS@10 workshop, Princeton University, May 6th
2015 Selected Topics in Theoretical High Energy Physics, Tbilisi State University, Georgia, September 23rd
2015 1st Erlangen Workshop on Cosmology and Quantum Gravity, February 11th
2014 The Primordial Universe After Planck, Paris, December 18th
2014 Keynote talk, Planck 2014 conference, Ferrara, Italy, December 3rd
2014 Colloquium, MPI for the Physics of Complex Systems, Dresden, November 17th
2014 Searching for Simplicity, Princeton University, May 15th
2014 The Particle Physics and Cosmology of Supersymmetry and String Theory, New York City, March 20th
2014 Colloquium, Virginia Tech, February 17th
2014 Cosmology after Planck, DESY, Hamburg, January 28th
2013 The Particle Physics and Cosmology of Supersymmetry and String Theory, Ludwig-Maximilians-Universität München, March 21st
2013 Colloquium, DESY, Hamburg, January 30th
2012 Colloquium, York University, Toronto, October 10th
2012 Corfu summer institute, Workshop on String Theory, September 24th
2012 New Ideas in Cosmology, University of Pennsylvania, March 17th
2011 Cosmological Frontiers in Fundamental Physics, Paris, June 17th
2011 AAAS meeting, Washington D.C., February 19th


2018 Die Erde ist mein Raumschiff
Publisher: da Vinci, Luxembourg
ISBN: 978-99959-1-130-0
Popular science book for children, distributed by the Luxembourgish Ministry of Education to all school children in 6th grade (cycle 4.2) in Luxembourg

Popular Science Talks and Outreach Activities (selected)

2019 Keynote Speech, Ph.D. Graduation ceremony, University of Luxembourg, December 13th
2019 Grundschule im Bornstedter Feld, Potsdam, November 13th
2019 “LTPS goes space”, Lycée Technique pour Professions de Santé, Luxembourg, June 24th
2019 Schroeder Award, Schroeder & Associés, Luxembourg, June 21st
2019 Bruno-H.-Bürgel Sternwarte, Berlin, March 22nd
2018 Presentation of my children’s book “Die Erde ist mein Raumschiff”, Science Center Differdange, Luxembourg, November 23rd
2018 ARD alpha Campus Talks, Wissenschaft auf den Punkt gebracht, recorded May 22nd
2018 Inner Wheel Club Potsdam, May 8th
2018 Athénée, Luxembourg, April 30th
2018 Olbers-Gesellschaft Bremen, April 17th
2017 Foundation for Young Scientists Luxembourg, October 5th
2017 Editorial on the big bang for “Newsweek”, www.newsweek.com, June 19th
2017 Grundschule im Bornstedter Feld, Potsdam, March 23rd
2016 Astronomy club Vega, summer camp, St Andreasberg, August 12th
2016 Montessori Primary School, Potsdam, July 4th
2015 Lunchpaket, science and dance performance, with choreographer/dancer Dr. Linda Gieres, Bildungsforum Potsdam, November 11th
2015 Primary school, Koerich, Luxembourg, September 28th
2014 Aboagora conference “Chaos and Cosmos”, with choreographer/dancer Dr. Linda Gieres, Turku, Finland, August 14th
2014 Planetarium Nürnberg, May 28th
2013 MPI for Immunobiology and Epigenetics, Freiburg, July 26th
2012 25 Years of Public Research in Luxembourg, Luxembourg, keynote speaker, November 26th
2012 Luxemburg ist Groß Festival, Berlin, May 11th
2011 Luxembourgish Amateur Astronomers, 40 Years Celebration, Luxembourg, December 16th
2011 Falling Walls conference, Berlin, November 9th
2010 SES, commercial satellite company, Princeton, board meeting, October 1st
2009 International Year of Astronomy, opening lecture, Luxembourg, March 3rd
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