Quantum Sound in the Fabric of the Universe ⚡ экспресс
Original: "Collective excitations in quantum gravity condensates"
Spacetime may not be continuous, but woven from quantum threads. Their collective trembling gives rise to something like sound—and this 'ringing' might reveal itself in the expansion of the Universe.
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Spacetime may not be a smooth sheet, but a seething quantum foam of tiny 'atoms of geometry'. Physicists have for the first time caught the trembling of this foam—something like sound waves. This ripple could reveal itself in subtle distortions of the Universe's expansion, and one day telescopes will capture it.
🎯 In a superfluid, sound doesn't fade—it becomes an endless echo.
🎬 The idea of quantum 'building blocks' of reality is explored in Greg Egan's science fiction novel 'Permutation City', where the universe is a giant cellular automaton.