ISRO conducts breakthrough demonstration of hack-proof quantum communication

What is the News?

Scientists from Ahmedabad-based Space Applications Centre and Physical Research Laboratory have successfully demonstrated Quantum Entanglement. 

What is Quantum Communication?

Quantum communication is one of the safest ways of connecting two places with high levels of code and quantum cryptography that cannot be decrypted or broken by an external entity. 

If a hacker tries to crack the message in quantum communication, it changes its form in such a manner that would alert the sender and would cause the message to be altered or deleted.

What is Quantum Entanglement?

Quantum entanglement is a physical phenomenon that occurs when a group of particles are generated, interact, or share spatial proximity in a way such that the quantum state of each particle of the group cannot be described independently of the state of the others, including when the particles are separated by a large distance.

What is Quantum Superposition?

Imagine a person is exercising in his/her living room. The person cannot turn left and right at the same time, not without splitting himself in two, at least). 

However, if the person is a quantum particle, then he/she can have a certain probability of facing left and a certain probability of facing right due to a phenomenon known as superposition (also known as coherence).

Only quantum systems like ions, electrons or superconducting circuits can exist in the superposition states that enable the power of quantum computing.

Source: This post is based on the article “ISRO conducts breakthrough demonstration of hack-proof quantum communication” published in India of Today on 4th February 2022.