Thorium-229: The Atomic Quantum Battery express
Original: "Long Time Energy Oscillation Between Electron Shell and Nucleus in $$^{229}$$Th Ions and Coherent Electron Bridge for Nuclear Quantum Battery"
A thorium-229 atom works like a pair of coupled pendulums: energy shuttles back and forth between the electron shell and the nucleus.
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In a thorium-229 atom, electrons and the nucleus play energy ping-pong. The shell breathes, alternating shrinking and expanding. This makes it possible to create a nuclear quantum battery charged by laser.
🎯 The thorium-229 nucleus can be 'charged' not with gamma rays but with ordinary ultraviolet light—its excitation energy is only 8.4 electronvolts, like an electron jump in an atom, not a nuclear reaction.