Toshiba Boffins Make Quantum Breakthrough

Researchers from Toshiba and Cambridge University have made a breakthrough in quantum computing, involving a new kind of LED technology.

The scientists reported that they have managed to create 'entangled light' by the means of a voltage-based power source, instead of creating it using laser beams on crystal.

Entangled light is a major part of quantum computing, and the researchers hope that this development may pave the way for more in the future.

The new source of entangled light is similar to the technology used in semiconductor LEDs used as indicator lights on computers and other devices, but instead contains a nanometer-scale region of semiconductor that converts electrical current into entangled light.

Quantum computing involves systems capable of processing massive amounts of data at the same time, and is used in sophisticated security systems that quantum cryptography to increasing the storage space available on optical discs.

Speaking to tech news site The Inquierer, Dr Mark Stevenson, a senior scientist involved in the project, explained: “For successful operation it was essential to optimise the thickness of the semiconductor material surrounding the quantum dot to control the supply of current to the dot.”