New method cracked for high-capacity, secure quantum communication

Scientists are developing a method for transmitting quantum information over long distances using particles of light called qudits. These special qudits encode information in a way that makes them resistant to errors and allows for faster data transfer. The technique uses two properties of light – spatial mode and polarization – to create four-dimensional qudits that can be manipulated with high precision. This paves the way for a robust and powerful quantum internet.