Hong Kong and UK researchers create advanced quantum holograms

Researchers from Hong Kong and the UK have developed a new method for creating quantum holograms using metasurfaces. This approach entangles polarization and holographic information, allowing for precise control over the holographic output. In their study, the team demonstrated the ability to selectively erase holographic letters by adjusting the polarization of paired photons. They successfully created four letters—"H," "V," "D," and "A"—showing the potential for advanced quantum communication applications. This technique offers a compact alternative to traditional methods, enhancing the practicality of quantum optical systems. The researchers also noted potential uses in anti-counterfeiting technology due to the unique patterns created by the entangled holograms.