IIT Gandhinagar Demonstrates Free Space Quantum Communication Link
Source:The Hindu ↗
हे का महत्त्वाचे आहे
Free-space quantum communication is crucial for developing hack-proof communication networks, bolstering cybersecurity, and advancing India's strategic sovereignty under the National Quantum Mission.
सारांश
Scientists at IIT Gandhinagar have successfully demonstrated a free-space quantum communication link across 5.5 km of open air, overcoming atmospheric distortions. This milestone advances India's capabilities in secure quantum cryptography and supports the broader objectives of the National Quantum Mission for indigenous secure communication infrastructure.
मुख्य मुद्दे
- Researchers at IIT Gandhinagar successfully demonstrated a free-space quantum communication link over a distance of 5.5 km through open air.
- The technological demonstration paves the way for secure satellite-based quantum communications and high-security terrestrial cryptography networks without needing fiber-optic cables.
- Overcoming atmospheric turbulence, absorption, and scattering remains a major challenge in free-space quantum links, which this experiment successfully navigated.
- Advances like this support India's strategic goals under the National Quantum Mission (NQM) to build indigenous cryptographic security architectures.
महत्त्वाच्या संज्ञा
National Quantum Mission
A flagship Government of India initiative implemented by the Department of Science and Technology to scale up R&D in quantum technologies, including quantum computing, communication, sensing, and materials.
UPSC context
UPSC Prelims/Mains GS Paper III: Science & Technology — IT and Space. Tests awareness of key national technology missions and strategic scientific initiatives.
IIT Gandhinagar
An autonomous premier academic institution involved in frontier research, including successful field demonstrations of free-space quantum key distribution and secure communication links.
UPSC context
UPSC Mains GS Paper III: Science & Technology — Applications of emerging technologies like quantum communication in national infrastructure.
पूर्वपरीक्षा सापळा
Free-space quantum communication relies on specialized fiber-optic cables laid across open atmospheric terrain.
Free-space quantum communication does not require physical fiber-optic cables for transmission, using open air and line-of-sight laser/optics instead.
संबंधित स्थिर संकल्पना
What are the key pillars and objectives of India's National Quantum Mission (NQM)?
- Core Mandate: The mission aims to seed, nurture, and scale scientific and industrial R&D in Quantum Technology and foster a vibrant ecosystem.
- Thematic Hubs: It focuses on four thematic hubs (T-Hubs) in Quantum Computing, Quantum Communication, Quantum Sensing & Metrology, and Quantum Materials & Devices.
- Key Targets: It targets developing intermediate-scale quantum computers and satellite-based secure quantum communications between ground stations over 2,000 km.
आंतर-विषय नमुने
Quantum Communication + National Security Infrastructure
Free-space quantum cryptography and satellite-based links connect advanced S&T initiatives with strategic border defense and secure military communications in high-altitude terrain.
National Quantum Mission's dual-use cryptography and free-space quantum link achievements likely to be tested in Prelims.
संबंधित PYQ · 1
संबंधित PYQ · 1
- 2022PrelimsGS1
Which one of the following is the context in which the term "qubit" is mentioned ?
