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In physics, information is entropy. Put simply, entropy is a measure of all the possibilities in a system. From black holes to quantum mechanics to understanding the physics of life, information has risen to become a principal concern of many physicists in many domains. Efficient error-correcting codes for quantum computing recently emerged from mathematical models used to study black holes. This surprising finding joins to a long list of profound connections between information and physics.
The most intriguing examples began as paradoxes or “thought experiments” that are hard to test experimentally. Physicists take them seriously because they challenge core concepts and may require revolutionary theoretical changes that could have practical consequences.
In future generation networks, IoT will play a pivotal role. Massive distributed sensing will be necessary to enable the metaverse, human telepresence, and the Tactile Internet. Sensors on human and machines, and in the environment will create interactions among real objects/environment/humans with digital ones in a mixed or virtual reality. This poses unprecedented challenges on IoT systems in terms of massive data mining and processing, which imply communication, computing, and sensing issues. In fact, the massive sensing expected hardly can satisfy those mentioned scenarios, which require very stringent KPIs in terms of end-to-end latency, energy usage, sustainability, and security. That is why new communication, computing, and sensing resources are necessary which can go beyond what classical technologies can offer. This imply the use of quantum technologies and resources like entanglement to address the design of future efficient and effective IoT systems. The Quantum IoT can represent the means to realise the metaverse and the immersion of human sensorial experience in the mixed reality by also satisfying the societal objectives of sustainability and trustworthiness.