News and Events

Rewriting Hartle's and Hawking's no-boundary proposal as a path integral with Robin boundary conditions more
Dr. Jean-Luc Lehners of the Max Planck Institute for Gravitational Physics receives a Consolidator Grant from the European Research Council (ERC) more
Editor's Choice in Physical Review D
The article No rescue for the no boundary proposal: Pointers to the future of quantum cosmology by Job Feldbrugge, Jean-Luc Lehners, and Neil Turok has been highlighted as "Editor's Choice".

Phys. Rev. D 97, 023509 – Published 12 January 2018 more
Researchers from the Max Planck Institute for Gravitational Physics in Potsdam and the Perimeter Institute in Canada disprove the theory of the “smooth beginning” more
The Big Bang Clock

The Big Bang Clock

June 15, 2017
Article about Jean-Luc Lehners' research the Max Planck Research magazine (No. 3/2017). more
Workshop "Connections between Cosmology, Strong Gravity and Quantum Theory"
February 15 - 18, 2017

This meeting at Ringberg Castle aims to explore frontier issues in cosmology, especially the connections with black hole and gravitational wave physics, as well as the theoretical challenges of combining gravity and quantum theory in order to gain an understanding of the big bang.

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Workshop "Emergent Space-time in Quantum Gravity and Fundamental Cosmology"
26. - 29. September 2016
AEI Potsdam-Golm

The workshop will bring together theoretical physicists working on different approaches to quantum gravity (with an interest in early universe cosmology) and cosmologists studying fundamental aspects of cosmological models (and interested in quantum gravity effects in the early universe). more
<span>Public talk: "The Beginning of Space and Time" (in German)</span>
November 21, 2015

Dr. J.-L.
 Lehners gives a public talk at the G.A.S. Station in Berlin.
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"Lunchpaket" (talk and performance): Das älteste Licht des Universums
November 11, 2015

A science and dance performance about the oldest light we know. With Dr. Jean-Luc Lehners (Max Planck Institute for Gravitational Physics) and Dr. Linda Gieres (freelance choreographer and dancer).
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Workshop "Quantum Gravity and Fundamental Cosmology"
March 3 - 6, 2014

The workshop will bring together theoretical physicists working on different approaches to quantum gravity (with an interest in early universe cosmology) and cosmologists studying fundamental aspects of cosmological models (and interested in quantum gravity effects in the early universe). more
Public lecture “What was before the Big Bang” by Dr. Jean-Luc Lehners from the Max Planck Institute for Gravitational Physics (Albert Einstein Institute) at the Bruno H. Bürgel Observatory in Berlin more
Jean-Luc Lehners - Breaking the Wall of the Beginning of Time @Falling Walls 2011
Dr. Jean-Luc Lehners from the Max Planck Institute for Gravitational Physics (Albert Einstein Institute/AEI) is one of the top 20 international scientists who on Wednesday, 9 November at the Falling Walls Conference in the Berlin-based Radialsystem venue will present a talk about the boundaries of knowledge and how they can be overcome. more

Exploring the Big Bang

January 10, 2011
Jean-Luc Lehners establishes a new research group at the Albert Einstein Institute more
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