Lucas Lombriser (born 12 April 1982) is a Swiss National Science Foundation Professor at the Department of Theoretical Physics, University of Geneva.
[27][28] In 2015 and 2016, Lombriser predicted the measurement of the gravitational wave speed with a neutron star merger and that this would rule out alternative theories of gravity as the cause of the late-time accelerated expansion of our Universe.
[2][3][4][5][6][7] In April 2021 his team showed that this results in a higher cosmic microwave background temperature than measured locally, which eases further cosmological tensions.
[30] In June 2023, Lombriser reported an alternative way of interpreting the available scientific data which suggested that the notion of an expanding universe may be more a "mirage" than an actuality.
[31][32] Lombriser has given several interviews on his research work and life in the Swiss Romansh-speaking media, including TV,[33] radio,[34] and newspaper articles.