Exploring real-world applications of quantum networks that enhance privacy, security, and efficiency across different domains.

The Quantum Internet promises to revolutionize the way we communicate, compute, and secure information. By harnessing the principles of quantum mechanics, it enables applications that go beyond the capabilities of classical networks—offering unparalleled security, precision, and computational power.

Below, we present some examples of use cases that illustrate how quantum network technologies can impact fields ranging from secure voting and whistleblowing to enhanced astronomical measurements and network optimization. Each use case example provides a sneak peek into how a general-purpose quantum internet will shape the future, with links to in-depth insights for further exploration.

• Doctolib’s Document Deletion

  Quantum-certified deletion ensures that confidential medical documents shared on platforms like Doctolib can be permanently erased with mathematical proof, helping comply with GDPR’s “Right to be Forgotten.”
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• HOM Based Clock Synchronization

  Leveraging the Hong-Ou-Mandel effect, quantum clock synchronization ensures ultra-precise timing across quantum networks, surpassing traditional GPS and NTP methods for secure communication, computing, and navigation.
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• Secure Position Verification

  Quantum secure multi-party computation (QSMPC) enables users to prove they are inside or outside a designated area without revealing their exact location, ensuring privacy in sensitive scenarios.
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• Quantum-enhanced SDN Management, Control, and Orchestration

  By integrating quantum network technologies into Software Defined Networking (SDN), networks can achieve more secure, scalable, and efficient management, including improved leader election for critical decision-making.
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• One-time Proxy Voting

  Quantum one-time programs enable secure proxy voting by ensuring that a delegated vote can only be signed once, preventing fraud and enhancing trust in elections and decision-making processes.
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• Multiparty Entanglement for Secure, Distributed Function Estimation

  Leveraging entangled quantum states, this approach enables secure and precise distributed calculations—such as clock synchronization or sensor data aggregation—without revealing individual user data.
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• Very-long-baseline Optical Interferometry

  Quantum networks enable astronomers to overcome distance limitations in optical interferometry by using entanglement to measure stellar phase information across widely separated telescopes, enhancing resolution without direct photon transmission.
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• Small-scale Referendum

  Quantum voting protocols offer a secure and verifiable way to conduct small-scale referendums, ensuring privacy and integrity under controlled assumptions about trust and hardware reliability.
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• Quantum Whistleblowing

  Quantum networks enable truly anonymous whistleblowing, allowing individuals to expose misconduct without fear of retaliation by ensuring their identity remains untraceable.
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• Quantum-enhanced Load Balancing

  By using shared quantum entanglement, distributed computing systems can optimize job allocation across multiple nodes, improving efficiency even when direct communication between entry points is limited or costly.
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