
Quantum teleportation over active internet cables is a significant breakthrough in quantum communication. It opens up the possibility of combining quantum communication with existing internet infrastructure, greatly simplifying the infrastructure required for advanced sensing technologies or quantum computing applications. This development could lead to more efficient and secure communication technologies, as well as new applications in various fields.
Quantum teleportation is a process by which the state of a quantum system can be transmitted from one location to another, with the help of two entangled particles and classical communication.
Here’s a breakdown:
- Entanglement: This is a key concept. Entangled particles are linked in a special way, such that measuring one particle instantly reveals the state of the other, regardless of the distance between them.
- The Process:
- Entanglement: Two entangled particles are created and shared between the sender (Alice) and the receiver (Bob).
- Interaction: Alice interacts the quantum state she wants to teleport with her entangled particle.
- Measurement: Alice performs a special measurement on her two particles. This measurement destroys the original state.
- Classical Communication: Alice sends the results of her measurement to Bob (using a regular communication channel like radio or fiber optics).
- Reconstruction: Bob uses the information from Alice to manipulate his entangled particle, recreating the original quantum state.
Important Notes: - No Physical Matter Teleported: Quantum teleportation doesn’t involve physically transporting particles. It only transmits the quantum information.
- Requires Classical Communication: The process relies on classical communication to complete the teleportation.
- Applications: Quantum teleportation has significant potential in areas like:
- Quantum Computing: Distributing entangled particles for quantum networks.
- Quantum Cryptography: Unbreakable encryption.
- Quantum Sensing: Enhancing the sensitivity of sensors.
In Summary: Quantum teleportation is a mind-bending phenomenon that showcases the strange and wonderful world of quantum mechanics. It’s a crucial technology for the emerging field of quantum information science. - https://www.quera.com/glossary/quantum-teleportation
Teleportation, in the realm of science fiction, is the hypothetical transfer of matter or energy from one point to another without traversing the physical space between them. It’s a popular concept in science fiction, often depicted as instantaneous travel between distant locations.
However, in the context of quantum mechanics, quantum teleportation is a real phenomenon, but it’s not the same as the science fiction concept. Quantum teleportation involves transmitting the quantum state of a particle from one location to another, not the particle itself. It relies on entanglement and classical communication.
While teleportation remains a staple of science fiction, its feasibility in the real world is still a matter of speculation and ongoing research.
The approach successfully worked in experiments carrying regular Internet traffic. Northwestern University engineers are the first to successfully demonstrate quantum teleportation over a fiberoptic cable already carrying Internet traffic
Quantum teleportation can survive through busy internet cables
An experiment showing that quantum and classical communication can be carried out through the same fibre at the same time may open the door to building a quantum internet with existing infrastructure
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