Harvard and Chinese Universities Make Strides Towards Building a Quantum Internet with Successful Entanglement of Atomic Ensemble Memories through Telecom Fiber Networks

Boston, Massachusetts United States of America
Global quantum internet could have major implications for secure communication and distributed computing
Harvard and University of Science and Technology of China make strides towards building a quantum internet
Harvard physicists set up a quantum network with diamonds storing entangled state for up to one second
Successful entanglement of atomic ensemble memories through telecom fiber networks
University of Science and Technology of China team matches frequency of photons at central node for quantum repeaters connection
Harvard and Chinese Universities Make Strides Towards Building a Quantum Internet with Successful Entanglement of Atomic Ensemble Memories through Telecom Fiber Networks

A quantum communications revolution is underway, with researchers and institutions around the world making strides towards building a secure quantum internet. In recent developments, teams from Harvard University and the University of Science and Technology of China have reported successful entanglement of two atomic ensemble memories through telecom fiber networks.

Harvard physicists, led by Can Knaut at Harvard University, set up a quantum network consisting of two nodes separated by a loop of optical fiber spanning 35 kilometers across Boston. The diamonds in Knaut's experiment were able to store the entangled state for up to one second.

Meanwhile, Bao's team at the University of Science and Technology of China was able to match the frequency of the photons meeting at their central node, a crucial step for quantum repeaters connecting different nodes in a quantum network.

These breakthroughs are significant because they bring us closer to realizing a global quantum internet. A quantum internet would use quantum bits, or qubits, which rely on entanglement to transmit information securely over long distances. This could have major implications for fields such as secure communication and distributed computing.

Harvard University and the AWS Center for Quantum Networking (AWS CQN) have also made progress in this area by creating a multi-node quantum network that distributes, stores, and processes quantum information under the streets of Boston. The network uses diamond-based quantum memories to trap light and force it to interact with quantum memories using SiV centers.

These advancements are crucial steps towards building a future secure quantum internet. Quantum networking technologies enable private information sharing and networked quantum computing, serving as the backbone for this emerging field.



Confidence

85%

Doubts
  • Are the reported results from Harvard and University of Science and Technology of China peer-reviewed?
  • Is the success in creating a multi-node quantum network by Harvard University and AWS Center for Quantum Networking reproducible?

Sources

100%

  • Unique Points
    • Amazon and Harvard University have created a 'quantum network' that transmitted an entangled photon from one quantum computer to another over 35 kilometers of fiber-optic cable.
    • The entangled photon underwent quantum frequency conversion from visible frequency to telecom frequency for minimal losses in optical fiber.
    • AWS says early experiments showed the quantum-entangled photon traveled more than 35 kilometers and was stored for over a second, sufficient for it to travel around the world 7.5 times.
  • Accuracy
    No Contradictions at Time Of Publication
  • Deception (100%)
    None Found At Time Of Publication
  • Fallacies (100%)
    None Found At Time Of Publication
  • Bias (100%)
    None Found At Time Of Publication
  • Site Conflicts Of Interest (100%)
    None Found At Time Of Publication
  • Author Conflicts Of Interest (100%)
    None Found At Time Of Publication

100%

  • Unique Points
    • Two atomic ensemble memories have been entangled through a metropolitan fibre network.
    • Realization of a two-node quantum network between two multi-qubit quantum network nodes using SiV centres in diamond coupled to nanophotonic cavities and integrated with a telecom fibre network has been reported.
  • Accuracy
    No Contradictions at Time Of Publication
  • Deception (100%)
    None Found At Time Of Publication
  • Fallacies (100%)
    None Found At Time Of Publication
  • Bias (100%)
    None Found At Time Of Publication
  • Site Conflicts Of Interest (100%)
    None Found At Time Of Publication
  • Author Conflicts Of Interest (100%)
    None Found At Time Of Publication

100%

  • Unique Points
    • Harvard physicists built a 22-mile long quantum communications network using existing fiber-optic cables.
    • Quantum data cannot be copied or transmitted in the traditional sense, it must be entangled instead.
    • Institutions could use quantum entanglement to securely distribute sensitive data, such as financial transaction information, instead of traditional networks or 'wires'.
    • Quantum networking could have implications for decentralized finance and the security of digital assets like cryptocurrency.
  • Accuracy
    No Contradictions at Time Of Publication
  • Deception (100%)
    None Found At Time Of Publication
  • Fallacies (100%)
    None Found At Time Of Publication
  • Bias (100%)
    None Found At Time Of Publication
  • Site Conflicts Of Interest (100%)
    None Found At Time Of Publication
  • Author Conflicts Of Interest (100%)
    None Found At Time Of Publication

100%

  • Unique Points
    • A quantum internet would use quantum bits, or qubits, which rely on entanglement to transmit information securely over long distances.
    • Can Knaut at Harvard University and his colleagues set up a quantum network consisting of two nodes separated by a loop of optical fibre spanning 35 kilometres across Boston.
    • The diamonds in Knaut’s experiment were able to store the entangled state for up to one second.
    • Bao’s team was able to match the frequency of the photons meeting at the central node, which is crucial for quantum repeaters connecting different nodes.
  • Accuracy
    No Contradictions at Time Of Publication
  • Deception (100%)
    None Found At Time Of Publication
  • Fallacies (100%)
    None Found At Time Of Publication
  • Bias (100%)
    None Found At Time Of Publication
  • Site Conflicts Of Interest (100%)
    None Found At Time Of Publication
  • Author Conflicts Of Interest (100%)
    None Found At Time Of Publication

100%

  • Unique Points
    • Harvard University and the AWS Center for Quantum Networking (AWS CQN) created a multi-node quantum network that distributes, stores, and processes quantum information under the streets of Boston.
    • ,
  • Accuracy
    No Contradictions at Time Of Publication
  • Deception (100%)
    None Found At Time Of Publication
  • Fallacies (100%)
    None Found At Time Of Publication
  • Bias (100%)
    None Found At Time Of Publication
  • Site Conflicts Of Interest (100%)
    None Found At Time Of Publication
  • Author Conflicts Of Interest (0%)
    None Found At Time Of Publication