
The “Laboratoire des deux Infinis – Toulouse” (L2IT) -UMR5033- was created on 1 January 2020. L2IT researchers and engineers are studying the two infinities – the infinitely small and the infinitely large – and the relationships between the phenomena that govern each of them.
We pursue our research within major international collaborations such as CERN in Geneva, with the gravitational waves detector Virgo at EGO or the spatial gravitational waves detector LISA, and the GANIL FAZIA experiment in Caen.
The L2IT is a joint research unit of CNRS, through the Institute of “Physique Nucléaire et de Physique des Particules” (IN2P3), and the University of Toulouse.
Our latest news
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L2IT welcomes interns!
Every year the L2IT offers a limited number of internships (stages) to outstanding students interested in undertaking a research project in one of the research… Find out more
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The loudest black hole merger ever analyzed, one of Stephen Hawking’s theorems passes the test.
As a member of the LIGO-Virgo-KAGRA (LVK) collaboration, a network of terrestrial gravitational wave observatories, L2IT actively participated (through Vasco Gennari, PhD student at the… Find out more
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Matthias Tartarin’s thesis defense
Matthias Tartarin, PhD student at L2IT, will defend his PhD thesis conducted at the University of Toulouse on September 30th and entitled: Measurement of the… Find out more



