Quantum Satellite

Current Context :India plans to launch its first quantum satellite for quantum communication within 2-3 years.

• A quantum satellite secures communication using quantum physics principles.

Features and Functions:

• Signal Security:Protects against quantum computing threats.
• Quantum Key Distribution (QKD):Enables unbreakable encryption by securely sharing encryption keys and detecting eavesdropping.
• Mechanisms:
  • Quantum Measurement: Measuring a photon changes its state, revealing any interference.
  • Quantum Entanglement: Entangled photons reflect changes in each other instantly, ensuring secure communication.

About National Quantum Mission (NQM):

• Objective:Accelerate advancements in quantum communication and sensing systems.
• Budget:₹6,000 crore, spanning 2023–
• Authority:Implemented by the Department of Science & Technology.

Global Milestone – Micius (China):

• Launch:World’s first quantum satellite launched in 2016.
• Function:Emits entangled photon pairs for secure communication.