Researchers in Vienna may have discovered the ultimate secure transaction method: quantum entangled photons.
The dream of a completely secure, unhackable, absolutely private digital payment system could soon be realized thanks to new research out of the University of Vienna.on July 4 titled “Demonstration of quantum-digital payments,” a team of researchers at the Vienna Center for Quantum Science and Technology showed off what may be the first “unconditionally secure” digital transaction system based on quantum mechanics.
One of the most useful features of quantum entanglement is the fact that we can’t know what state an entangled object is in until we measure it. Scientists can exploit this by using entangled objects, such as photons, to ensure parity and send information that can’t be modified or intercepted.Thus, the researchers generated entangled photons using a laser process and encoded them with transaction information. The photons were then sent through over 400 meters of fiber optic cables to successfully complete a digital payment transaction between parties in different buildings.
While it’s possible this could represent a breakthrough in quantum communications for digital payments, there is one small caveat: Currently, the researchers say it takes “tens of minutes” for a simple digital payment to complete using the method.
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