How Bosons Help Superconductors Beat the Heat ✎ экспресс
Certain materials, near absolute zero, superconduct: electricity flows without loss. The critical temperature starts this. John Bardeen and colleagues explained that atomic vibrations glue electrons into Cooper pairs. Richard Feynman showed these pairs share a single quantum phase, like dancers moving in sync. Heat is noise that breaks couples, so raising the critical temperature is tough.
A new thermal theory maps how bosons nudge the critical temperature upward. With more bosons, superconductivity survives hotter conditions — a step toward room-temperature lossless power.
The current record holder for superconductivity at ordinary pressure is a mercury-based ceramic, working at a chilly −140°C. Boson-assisted pairing might one day push this past 0°C — literally freezing point for lossless power.
Arthur C. Clarke's flying cities in 'A Meeting with Medusa' need room-temperature superconductors. Boson-enhanced pairing could help make them float.