A team of scientists from the University of Geneva developed The first method of joint testing of Einstein and Euler theories about the accelerating expansion of the universe and dark matter.
The discoveries of Leonard Euler (1707-1783) and Albert Einstein (1879-1955) are basic for the science of our time. Euler, thanks to his famous equation, gave scientists a powerful tool for calculating the movement of objects in space. Einstein demonstrated his theory of common relativity that the Universe is not a static framework: it can be distorted by stars and galaxy clusters.
At the same time, experts still cannot answer the question: whether the acceleration of expansion and dark matter are subordinate to known equations. Dark matter, for example, is considered responsible for 85% of all matter in space, so further research is extremely important.
University employees have developed a method that takes into account previously not used value – time distortion. The results of the project are published in the journal Nature Astronomy. “The problem is that well -known cosmological data does not allow us to distinguish the theory that refutes the teachings of Einstein from the theory that refutes the Eyler equation. We demonstrate this in our study. We also provide a mathematical method for solving the issue,” explains Camille Bonven, associate professor of the department Theoretical physics of the Faculty of Sciences Unige.
If the distortion of time is not equal to the sum of time and space (i.e., the result produced by the theory of common relativity), this means that the Einstein model does not work. If the distortion of time does not correspond to the speed of galaxies calculated using Euler’s equation, then the latter is invalid. “We want to know if there are other processes or substances in the universe that will violate both theories,” explains Levon Poghosyan, professor of physics at the University of Simon Fraser, co -author of the study.
The results of the project will make a significant contribution to several missions. They, for example, include the launch of the Euclid space telescope, planned in July this year by the European Space Agency (ESA) in cooperation with UnIge. Another development is a device for spectroscopic study of dark energy (Desi), which began its 5 -year mission in 2021 in Arizona. There is also an international project of a giant radio telescope SKA (Square Kilometer Array) in South Africa and Australia, which will begin observations in 2028/29.
“Our method will be integrated into different missions. We are already cooperating with Desi thanks to this study,” says Camille Bonven. The team successfully tested its model on synthetic catalogs of galaxies. The next step is planned to study the first desi data, determine obstacles and minimize systematic features.