Scientists from Amazon and Harvard University have created an experimental quantum network capable of transmitting entangled photons over a distance of 35 kilometers via a fiber optic cable.
Quantum transmission
Expanding quantum computing capabilities
A joint effort between Amazon and Harvard University has developed an innovative node system based on diamond crystals, capable of capturing, storing and moving quantum information encoded in light photons. During the experiments, the researchers were able to transmit an entangled qubit over a distance of more than 35 km via an optical fiber, maintaining its entangled state for over a second.
Operating principle of a quantum network
The designed system uses the unique properties of diamond gratings to interact with light particles. When passing through such nodes, a photon temporarily enters an entangled state with quantum memory. It is then converted to telecommunications wavelengths and transmitted along an optical fiber to the next node, where the reverse conversion occurs. Thus, entanglement is carried over long distances.
Prospects for the development of quantum networks
Tests have shown the fundamental possibility of building a scalable quantum network based on existing technologies. However, for its practical application it is necessary to significantly increase the speed of information transfer, which is currently limited to the transfer of single qubits. Scientists continue to work on improving the system to make quantum networks commercially viable in the future.
Glossary
- Amazon - The largest American e-commerce and cloud company calculations.
- Harvard University is a prestigious university in the USA, one of the oldest and most respected educational institutions in the world.
- Quantum entanglement - A quantum mechanical phenomenon in which the states of two or more objects are inextricably linked, despite the distance between them.
- Photon - An elementary particle, a quantum of electromagnetic radiation.
- Qubit - Quantum analogue of a classical bit, the basic unit of quantum information.
Links
- Amazon AWS: Quantum Information Delivery: Field Deployed Quantum Network
- The Verge: Quantum network from Amazon and Harvard transmits entangled photon 35 kilometers
Answers to questions
What is a quantum network and what is it intended for?
How does a quantum network work and what are quantum relays?
How was the experiment to create a quantum network carried out?
What are the key achievements and importance of this experiment?
What are the current limitations and prospects for the development of quantum networks?
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Discussion of the topic – Quantum revolution: an entangled photon travels 35 km through the streets of Boston
Scientists from Amazon and Harvard University have made a revolutionary breakthrough in the field of quantum computing, creating the world's first "quantum network" capable of transmitting entangled photons over long distances through a fiber optic cable.
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Alexander
Wow, this is really cool news! 🤖 Quantum networks are the future of communications. Can you imagine how fast and secure the Internet will be with their help? I just don't quite understand how exactly these diamond-based 'repeaters' work.
Николай
Yes, this is truly revolutionary technology. I've read that these diamond cavity repeaters can keep photons entangled and transmit them over long distances without losing information. This solves one of the main problems in creating quantum networks. 🔬
Мария
What impressed me the most was how they were able to transmit an entangled photon 35 km over an optical fiber! 😮 Previously, the maximum distance was very small. This is a huge breakthrough for quantum communications.
Иван
Sounds exciting, but I'm still a skeptic. 🧐 Remember how they promised that quantum computers would soon replace conventional ones? For now they work only in laboratories. I won’t delude myself too much about quantum networks, in case it’s just another scientific breakthrough on paper.
Жанна
Oh, Ivan, don't be such a grumpie! 😄 Of course, there is still a long way to go before the mass implementation of quantum technologies, but every step forward is important. I think that over time, quantum networks will become commonplace, just like the Internet once was. The main thing is not to stop there!
Николай
I absolutely agree with Zhanna. 💯 Now quantum computing is in its infancy, but progress cannot be stopped. Perhaps in 10-20 years we will no longer be able to imagine life without them, just like now without smartphones and the Internet.
Sophie
Guys, have you thought about what opportunities will open up with the quantum Internet? 🌐 Absolutely secure communications, cloud computing to a new level of performance. And this is just the beginning! I can't wait for this network to become available to the general public.
Alessandro
I couldn’t agree more, quantum technologies are incredible prospects for our future! 🔥 I'm sure the creators of smartphones and the Internet could not even imagine how their inventions would change the world. Quantum computing and communications are a new stage of development for all humanity.