Quantum Internet is Coming to NYC: A 34km Loop Test Proves It

Quantum Internet: From Theory to NYC Streets

The idea of a quantum internet might sound like something out of a science fiction novel, but it's closer to reality than you might think. Qunnect Inc., a company based in Brooklyn, has successfully operated a prototype quantum network under the streets of New York City. This is a major step forward in the development of this cutting-edge technology.

<figure> <img src="https://scx1.b-cdn.net/csz/news/800a/2024/test-of-a-prototype-qu.jpg" alt="Map of the GothamQ network under New York City boroughs." title="CAPTION: Map of the GothamQ network under New York City boroughs. Credit: Physics Magazine via APS" width="800" height="530"> <figcaption>CAPTION: Map of the GothamQ network under New York City boroughs. Credit: Physics Magazine via APS</figcaption> </figure>

Why is this a big deal?

Quantum networks rely on entanglement, a mind-bending quantum phenomenon where particles become linked, no matter how far apart they are. This connection allows for secure communication and potentially even faster computation. The challenge, however, has been to maintain these entangled states while transmitting them through fiber optic cables, as noise and polarization drift can disrupt the connection.

Qunnect's success lies in its ability to overcome these challenges. Their network, called GothamQ, spans 34 kilometers and utilizes polarization-entangled photons. These photons are particularly useful because they are easy to create and manipulate. The network ran for 15 consecutive days, achieving a remarkable 99.84% uptime, demonstrating its reliability.

<figure> <img src="https://scx1.b-cdn.net/csz/news/800a/2024/test-of-a-prototype-qu-1.jpg" alt="Qunnect's Qu-Val equipment, consisting of an entanglement source, Automated Polarization Compensators and measuring device." title="Qunnect's Qu-Val equipment, consisting of an entanglement source, Automated Polarization Compensators and measuring device. Credit: Mehdi Namazi of Qunnect" width="800" height="530"> <figcaption>Qunnect's Qu-Val equipment, consisting of an entanglement source, Automated Polarization Compensators and measuring device. Credit: Mehdi Namazi of Qunnect</figcaption> </figure>

The Future of Quantum Communication

The implications of this achievement are far-reaching. A fully-fledged quantum internet could revolutionize communication, computation, and even the way we conduct scientific research. It could lead to:

• Ultra-secure communication: Quantum entanglement provides a fundamentally secure way to transmit information, making it impossible for eavesdroppers to intercept messages.
• Unprecedented computing power: Quantum computers have the potential to solve problems that are currently intractable for even the most powerful classical computers.
• Enhanced scientific discoveries: Quantum networks can enable more precise measurements and facilitate collaborations across vast distances, opening up new avenues of scientific exploration.

Qunnect's GothamQ loop is a major step towards making this vision a reality. While much work remains to be done, the future of quantum communication is looking bright.