Will this power come to handheld devices any time soon?
The research could eventually lead to a massive quantum communications network that would be virtually hacker-proof due to the nature of the technology., demonstrated transmission speeds of 0.54 bits per second, much slower than communications using classical computing devices. Still, this was fast enough for phone call and text message encryption over a distance of 30 km .
The same team set the previous record, and they developed a"novel design of physical system with a new protocol" to break that record and greatly improve upon their previous design by removing the"complicated active compensation subsystem", enabling"an ultra-low quantum bit error rate and the long-term stability against environmental noises."
According to the researchers, their experiment shows that"intercity quantum secure direct communication through the fiber is feasible with present-day technology". They believe that parts of today's internet could be replaced with quantum channels, preventing hackers from eavesdropping on their communications. QSDC uses a quirk of quantum physics called entanglement to secure communications networks.
We're still some way off from seeing the promise of quantum computers delivered in a commercial setting, but quantum internet infrastructure is coming much closer to becoming a reality. It's a development that could change the way organizations and individuals communicate online, allowing them to do so with much greater security than ever before.
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