Fuzzy Probabilities in a Blurry Spacetime ⚡ экспресс
Original: "Indefinite probabilities in quantum spacetime: A deepening of unpredictability"
When spacetime loses its smoothness, probabilities get blurry too: two observers can never perfectly agree on their instruments' orientations.
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Physicists have found that in 'fuzzy' spacetime, probabilities themselves become blurry. It's like trying to align two foggy compasses: you can't get a perfect match. Two observers can never measure their instruments' mutual orientation with absolute precision. A new model points to a deep connection between quantum mechanics and gravity.
🎯 The tool that captured probability’s fuzziness — quantum groups — was created in the 1980s for a completely different purpose: mathematicians were exploring how to smoothly deform ordinary multiplication operations. Only later did it turn out that this abstraction fits perfectly for describing quantum foam.