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Dark Energy: Phantom or Illusion? ⚡ экспресс

Original: "Kinetic Mixing and the Phantom Illusion: Axion-Dilaton Quintessence in Light of DESI DR2"
arXiv:2511.23463 · 2025-11-28 · CC BY · ⏱ 1 min · Cosmology HEP Phenomenology
The new KMIX model explains the strange behavior of dark energy as an optical illusion, not a catastrophic 'phantom'.
Abstract

New data from the DESI telescope hint that dark energy is not a constant, but a changing mysterious force. Scientists tested a model where this force works like a pendulum that sometimes pushes and sometimes pulls, and with a clever algorithm they quickly fitted it to the observations. It turned out the model works well without any wild assumptions. So, maybe the mystery of dark energy is close to being solved?

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Data from the DESI galaxy survey hint: dark energy was more powerful in the past than today. This 'phantom' behavior threatens the Universe with a Big Rip — a finale where even atoms disintegrate. But the KMIX model explains this as an illusion. Two fundamental fields — like a distorting mirror — warp our picture: constant energy appears variable. Without this distortion, the catastrophe is canceled.

With the help of a neural network, scientists have, so to speak, polished the distorting mirror: KMIX predictions were directly compared with data from the Planck satellite and supernovae. Result: moderate preference for the model with a confidence of 2.5 sigma. The final answer lies with future telescopes, but it is already clear: dark energy may be merely a shadow of complex geometry, not an independent substance.

🎯 The term 'quintessence' for dynamic dark energy models comes from ancient philosophy, where it referred to a fifth element filling the heavens — distinct from earth, water, air, and fire.

Scientists
Alan GuthAndrei LindeGeorges LemaîtreJames PeeblesAdam RiessBrian Schmidt
Tags
dark energy expansion of the universe supernova
Laws
Friedmann equationsHubble's lawChandrasekhar limitFermi accelerationlaw of conservation of momentum
Original: arXiv:2511.23463 · CC BY · bridge42worlds