News and Events

New study shows we may already be observing a significant fraction of the Universe. more

What determines the shape and properties of extra dimensions? New answers from the Hartle-Hawking no-boundary proposal. more

November 1, 2021, 19:00 CET: Online talk about the beginning of the Universe more

In his presentation, Jean-Luc Lehners will describe our current understanding of the Big Bang, i.e. the origin of the universe. more

Dr Jean-Luc Lehners gives a public online talk (in German):
Location: https://www.youtube.com/watch?v=wrtOXVnk4eA
Date: October 8, 2020
Time: 7pm more

With the award, the Physical Society of Berlin honors Dr. Bramberger's outstanding dissertation entitled “Cosmological Singularity Resolution – Classical and Quantum Approaches”. more

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

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

Article about Jean-Luc Lehners' research the Max Planck Research magazine (No. 3/2017). more

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. more

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

November 21, 2015

Dr. J.-L. Lehners gives a public talk at the G.A.S. Station in Berlin. more

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). more

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

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

Jean-Luc Lehners establishes a new research group at the Albert Einstein Institute more