What is quantum entanglement and how is it used in telecommunications?

What is quantum entanglement and how is it used in telecommunications?

Quantum entanglement is a phenomenon where particles become interconnected, such that the state of one instantly influences the state of another, regardless of distance. In telecommunications, this can enhance secure communication through quantum key distribution.

Can you explain how this enhances security?

Certainly! Quantum key distribution (QKD) uses entangled particles to create a shared secret key between two parties. If an eavesdropper tries to intercept the key, the entanglement is disturbed, alerting the parties to the breach.

What are the practical applications of this technology?

Practical applications include secure data transmission for financial institutions, government communications, and even in future quantum internet development.

Are there any challenges in implementing this technology?

Yes, challenges include maintaining entanglement over long distances, the need for advanced technology, and the current limitations in quantum infrastructure.