Scientists Claim To Find ‘first Observational Evidence Supporting String Theory,’ Which Could Finally Reveal The Nature Of Dark Energy – Live Science
Scientists Claim To Find ‘first Observational Evidence Supporting String Theory,’ Which Could Finally Reveal The Nature Of Dark Energy
Physicists have proposed a new model of space-time that may provide the ‘first observational evidence supporting string theory,’ a new preprint suggests.
Physicists claim they may have found a long-awaited explanation for dark energy, the mysterious force that’s driving the accelerated expansion of the universe, a new preprint study hints.
Their calculations suggest that, at the smallest scales, space-time behaves in a profoundly quantum way, differing drastically from the smooth, continuous structure we experience in everyday life. According to their findings, the coordinates of space-time do not “commute” — meaning the order in which they appear in equations affects the outcome. This is similar to how a particle’s position and velocity behave in quantum mechanics .
One of the most striking consequences of this quantum space-time, as predicted by string theory , is that it naturally leads to cosmic acceleration. Moreover, the researchers found that the rate at which this acceleration decreases over time aligns remarkably well with the latest observations from the Dark Energy Spectroscopic Instrument (DESI)…
“Viewed through the lens of our work, you could think of the DESI result as the first observational evidence supporting string theory and perhaps the first observable consequences of string theory and quantum gravity,” study co-author Michael Kavic, a professor at SUNY Old Westbury, told Live Science via email.
The mystery of the universe’s expansion
In 1998, two independent teams — the Supernova Cosmology Project and the High-Z Supernova Search Team — discovered that the universe’s expansion was not slowing down, as previously thought, but was instead accelerating. They reached this conclusion by studying distant supernovas, which appeared dimmer than expected. This acceleration implied the presence of a mysterious entity permeating space, later dubbed dark energy…
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