Quantum Signals Transmitted over Standard Internet Lines Without Loss of Entanglement, According to University Researchers
The University of Pennsylvania has made a significant breakthrough in the field of quantum computing with the development of the Q-Chip. This innovative silicon chip is capable of coordinating traditional and quantum signals over the internet, marking a significant step towards the practical application of quantum computing.
The Q-Chip system pairs the quantum signal with a light-based standard internet signal, creating a train-like combination. This pairing allows for the transmission of quantum signals, a task that has been challenging due to the fact that quantum signals lose their quantum properties when measured. However, the Q-Chip system manages this challenge by automatically correcting for noise without measuring the quantum-linked signals.
The relationship between the standard and quantum signals in the Q-Chip system allows for noise correction, making the transmission of quantum signals over an internet connection possible. The standard internet signal acts as an engine for routing, with the quantum signal riding alongside it like cargo. This system can theoretically work anywhere along the Verizon fiber optic network in Philadelphia, and other metro area's internet infrastructure.
The Q-Chip system can bundle standard and quantum signals into a package that can be sent successfully across a city's fiber-optic internet lines. The company that developed this system, the Penn group, successfully transmitted quantum signals over a standard internet connection using fiber-optic cables in Philadelphia. This achievement was made with over 97% transmission accuracy using Verizon fiber connecting two buildings about one kilometer apart in Philadelphia.
This research is invaluable for enabling quantum signals to be sent via existing Internet infrastructure. The researchers published their work in the journal Science, highlighting the significance of their findings. As quantum computing moves towards relevance and usefulness in the real world, governments and corporations are working to be the first to enable its use in real-life applications.
It is important to note that quantum computing is an entirely different realm from traditional computing, using qubits instead of transistors, bits, and electrons. Qubits can represent states of 0, 1, and any other of countless variations of these two states due to quantum entanglement.
Further research is needed to successfully repeat quantum signals over long distances. However, the successful transmission of quantum signals over a standard internet connection using fiber-optic cables is a significant step towards this goal. The Q-Chip system can manage quantum signals on a live commercial network like Verizon's, paving the way for the practical application of quantum computing in the near future.
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