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SEARCH FOR SYMMETRICAL UNIVERSE. “The conclusion of their study, after several years of effort, was that the primordial Universe, at least in the standard cosmological model, does not provide enough time for a matter-antimatter universe to create structures large enough to evade the constraints of the diffuse gamma-ray flux.” https://lnkd.in/daA2SgMy View in LinkedIn

Slug on mushrooms. View in LinkedIn

“THE UNIVERSE is an appearance corrected by a transparency. “ (Victor Hugo) https://lnkd.in/dNRMDkJZ View in LinkedIn

TIME TRAVEL. “And we also know since the early 1990s that building a time machine in general relativity —for example using a wormhole as a time machine— requires violating the positivity of energy. It is therefore natural to test whether antimatter is not by any chance such an “exotic” material.” https://lnkd.in/daA2SgMy View in LinkedIn

SEARCHES. “In the 1960’s and again in the late 1980s, two teams tried to understand whether a symmetric matter-antimatter universe could be consistent with observations.” https://lnkd.in/daA2SgMy View in LinkedIn

THE BEST CONCEPT EVER. “Dirac had shown that antimatter appears as the matter of negative energy going backwards in time.” https://lnkd.in/daA2SgMy View in LinkedIn

PARITY UNIVERSE. “The Dirac-Milne Universe is a universe that contains as much matter as antimatter.” https://lnkd.in/daA2SgMy View in LinkedIn

NEGATIVE ENERGY. “Since fermions always come in pairs, the vacuum breaks down with pair creation when a electron of mass me is confined in a potential well of depth larger than −2mec2 and not mec2, so that the electron has a negative total energy of −mec2 when the vacuum starts to break down.” https://lnkd.in/daA2SgMy View in LinkedIn

NOT EXTREME CONDITIONS. “Surprisingly, even at low fields, such a gravitational polarization will lead to observational consequences.” https://lnkd.in/daA2SgMy View in LinkedIn

THE POSSIBILITY OPENS. “In other words, if a negative energy solution is unstable in Minkowski (flat) spacetime, but is stable in an Einstein-de Sitter spacetime, while a few billion years are required to determine whether you live in one or the other of these two universes, it means that the instability of the negative mass solution has at most a characteristic timescale of a few billion years.” https://lnkd.in/daA2SgMy View in LinkedIn