Quantum computing got a big push forward this month as researchers managed to create quantum dot light-emitting diodes (LED’s) that have the ability to produce entangled photons that could be used to encode information. Previously, the highest number of photons known to be entangled at one time was 8, but as of June, that number has now risen to 10.
A new method has now been devised by researchers from the Tyndall National Institute that makes the process of entangling photons much easier than ever before and thus, push us forward towards that quantum age. Researcher Emanuele Pelucchi says, “We have engineered a scalable array of electrically driven quantum dots using easily sourced materials and conventional semiconductor fabrication technologies, and our method allows you to direct the position of these sources of entangled photons.”
The quantum dot light-emitting diodes (QLED’s) that the researchers created are shaped in a pyramid and electrified to entangle the photons. The pyramid-like structure is what gives the researchers control. Pelucchi comments, “Being able to control the positions of the quantum dots and to build them at scale are key factors to underpin the more widespread use of quantum computing technologies as they develop.”
Even though there are known methods in place for entangling particles, it’s still never an easy thing to do. But, the new method is still a breakthrough nonetheless and will certainly help towards unraveling that big quantum ball of string. It gives researchers more control during the process and gets us one step closer to reaching that quantum computing era.
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