U. WASHINGTON / U. ROCHESTER (US) — Invisibility, once the subject of magic or legend, is slowly becoming reality, say researchers who have developed what they call “Schrödinger’s hat.”
Over the past five years mathematicians and other scientists have been working on devices that enable invisibility cloaks—perhaps not yet concealing Harry Potter, but at least shielding small objects from detection by microwaves or sound waves.
An international team of researchers is working to understand invisibility and extend its possible applications. The group has now devised an amplifier that can boost light, sound, or other waves while hiding them inside an invisible container.