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Near a black hole, gravity changes a quantum circuit's readings, not its rules

Imagine holding one of our most precise quantum devices at a fixed position outside a black hole. A Josephson junction—two superconductors separated by an ultrathin barrier—can turn a voltage into a quantum oscillation with extraordinary precision. Would intense gravity change that quantum rule, or only change how a faraway observer reads the device?
Near a black hole, gravity changes a quantum circuit's readings, not its rules
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Phys.org

1d ago
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