How to Braid Atoms to Save a Quantum Battery ⚡ экспресс
Quantum batteries lose energy due to decoherence (interaction with the environment), which causes their aging. The solution is giant atoms with non-local connections, braided into a 'braid', where noise channels, like opposing waves, cancel each other out, without interfering with the energy transfer from charger to battery. This braided configuration is more effective than separate or nested schemes. A method of directed charging, reversible by magnetic flux, is also proposed. The result is a recipe for long-lived quantum batteries.
Quantum batteries lose energy due to entropy — the tendency toward disorder. Just as parallel wires pick up interference, the battery's contacts with the environment create leakage channels. The solution: braid the giant atoms, which act as both charger and storage, into a braid. In this intertwined state, the connection points with the waveguide cancel out parasitic waves: the crest of one meets the trough of another, and the leak vanishes. Meanwhile, the useful energy flow zips along at nearly the speed of light, unbothered by interference.
A surprising bonus: by changing the magnetic field, you can turn the battery into a quantum 'diode' that allows energy to flow in only one direction. Although these devices are still beyond the Standard Model of physics, they pave the way for long-lasting energy storage.
🎯 Quantum batteries charge faster the larger they are — contrary to common sense.
🎬 The idea of lossless batteries recalls the technology from 'Star Trek': energy is transmitted through waveguides over vast distances without leaks.