Magnets Mimic Black Hole Secrets ⚡ экспресс
Physicists built a model from ‘magnetic’ particles that shows how a black hole, as it evaporates, loses and then returns information. The effect is achieved by simply moving the system’s boundary — like a shagreen leather, shrinking and stretching the entanglement. This opens the door to studying gravity’s paradoxes on a quantum processor. So, could a tabletop experiment reveal the mystery of a book’s fate after falling into a hole?
A diary loses pages, yet the story migrates to the rest. Black holes act similarly: as they shrink (shown by Stephen Hawking), swallowed information shouldn't vanish; it eventually resurfaces. Theory predicts a specific rise-and-fall curve for this escape.
Physicists built a miniature version with two strings of tiny magnets—one for the black hole, the other for the universe. Removing magnets one by one from the “black hole” string mimicked evaporation. They measured entropy—shared information—between the strings, and the pattern matched perfectly.
At a precise magnetic tipping point, like a compass needle quivering before it flips, the information streamed out smoothly. These chains fit inside current quantum computers, turning them into labs for testing how the cosmos handles its records.
🎯 The Page curve was first proposed by physicist Don Page in 1993, and he bet Stephen Hawking that information is not lost in black holes. Hawking conceded the bet in 2004.
🎬 In the movie Interstellar, the protagonist sends a message from inside a black hole using gravity, hinting that information can escape – a scenario now being probed by these quantum magnet models.