India Demonstrates 5.56-Km Free-Space Quantum Key Distribution Link
India has demonstrated a 5.56-km free-space Quantum Key Distribution (QKD) link, marking a significant advancement in quantum-secure communication. The test, conducted by QNu Labs, BISAG-N, and IIT Gandhinagar, achieved a stable quantum bit error rate below 5% and generated secure encryption keys used for message encryption. This development complements earlier quantum communication milestones, including IIT Delhi's recent transmission of entangled photons over 50 km of optical fibre. The technology aims to enhance data security against future quantum computing threats by combining quantum and post-quantum cryptography.
First-hand measurement across 3 sources
We measured how 3 outlets covered this story. Coverage leans right-leaning overall (Left 0%, Centre 33%, Right 67%). Overall sentiment is positive (73/100). Lens Score 50/100.
Outlets measured: thehindu, opindia, indiatoday. See how each one headlined and framed the same story in the source comparison below.
AI Analysis
All 1 outlets scored close to centre on political lean. The real divergence here is in emphasis, not lean — compare the headlines below to see how each outlet chose to frame the same facts.
Sentiment was consistent across outlets (65–78/100), indicating broadly factual reporting rather than editorialising.
Coverage timeline
indiatoday broke this story on 4 Oct, 03:16 pm. Other outlets followed.