In a crucial development for quantum technology in India, a joint squad of experts from the Defense force Research and Development System (DRDO) and Indian Institute of Engineering (IIT) Delhi
demonstrated Quantum Key Distribution (QKD) link
for a distance of over 100 kilometres.

Here’s what this means and how to expect at it in the context of developments in the field of quantum technologies, at home and across the earth.

The latest development

The Ministry of Defence (Mod) said Wednesday that a articulation squad of scientists and engineers from DRDO and IIT Delhi successfully demonstrated Quantum Key Distribution (QKD) link for a distance of over 100 km between Prayagraj and Vindhyachal in Uttar Pradesh. The technological breakthrough was accomplished over the commercial-grade optical fibre already available in the field.

“With this success, the state has demonstrated indigenous technology of secure key transfer for bootstrapping military-class communication security key hierarchy. This technology will enable security agencies to programme a suitable quantum communication network with indigenous engineering science backbone,” said the Modernistic. The ministry said that for this demonstration performance parameters were closely monitored and were constitute to be repetitively inside the reported international standards.

QKD is primarily a mechanism to undertake secure communication, which utilises a cryptographic protocol involving diverse components of quantum mechanics. The technology enables two communicating sides to come up with random secret keys shared by both of them and known exclusively to them, so only they can utilize it to encrypt and decrypt messages, thus achieving a very highly-secure communication.

Secure communications are vital not just for the defense force and strategic agencies across the globe just also for various civilian applications. The distribution of encryption keys is the crucial gene for this. Sharing of keys over the air or wired links requires encryption, which in plough requires encryption keys to be pre-shared. Quantum-based communication offers a robust solution to sharing the keys deeply. DRDO has undertaken multiple projects for the development of this engineering.

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Developments by DRDO in the past

Scientists have said that the latest examination further proves India’southward capabilities over longer distances and amid unlike ecology factors.

A like sit-in was held over a shorter distance in the first week of December 2020, when the technology was tested for communication between two DRDO facilities in Hyderabad—the Defence Research and Development Laboratory (DRDL) and Research Centre Imarat (RCI)—over a distance of 12 km.

Then in the last week of December 2020, DRDO Young Scientist Laboratory for Breakthrough Technologies (DYSL-QT), a DRDO facility based in Mumbai, developed a Quantum Random Number Generation (QRNG), which has the ability to detect random quantum events and convert those into a stream of binary digits. The QRNG system developed past DYSL-QT passed the global randomness testing standards of NIST and Dice-harder Statistical Test Suites at the speed of around 150 kbps after postal service-processing. The generated random numbers were besides evaluated and verified using DRDO’s indigenously developed Randomness Testing Statistical Test Suite of Scientific Analysis Grouping. With this development, Republic of india had entered the club of countries that have the technology to reach the generation of random numbers based on the Breakthrough Phenomenon.


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How to expect at it in the context of developments at dwelling and abroad?

Most of the large economies and defence powers across the world have in the recent past formulated defended plans for the development of quantum technologies. These countries include the US, Canada, several European countries, China, Japan and South korea. India has seen significant policy decisions and upkeep allocation for the sector.

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However, senior DRDO scientists and defense force officials say that developments in India need to be seen peculiarly in the context of several claims made by Mainland china. China has said that information technology has accomplished multiple breakthroughs in the quantum technology domain that included the world’s first quantum satellite, the world’s first optical quantum computing auto epitome and also a 2000 km long breakthrough advice link between Beijing and Shanghai. China’s 13th and 14th five-year plans give high priority to quantum technology. Experts have said that in the context of China’due south progress—or claims thereof—in quantum applied science, Republic of india’s efforts, though pregnant, are scattered in nature.



An international symposium on Quantum Information technology held in Pune in 2019 saw participation of key defence, civilian and academic and strategic entities of the country. What India’s National Cyber Security Coordinator, Lieutenant General Rajesh Pant had said at this 2019 conference is very significant. “My concern is China leading the race. It established the first Breakthrough Satellite Network and distributed entangled photons between iii terrestrial base stations separated by 1200 km. Quantum is at the centre of Mainland china’s 13th v-year program. Chinese dominated in Quantum Computing patents in the last iv years. Equally if this was non enough, the global investments in quantum computing are also growing,” said Pant.

“The US National Quantum Initiative Act has assured $1.2 Billion, the European union – 1 billion Euros. What is the state of affairs in India? Nosotros find a mix of individual and government sector investments. Nosotros have companies working on Quantum Cardinal Distribution (QKD) aspect, post-quantum cryptography and Artificial Intelligence platform on quantum. DRDO is also doing very significant work as also the Department of Scientific discipline Applied science, which has launched a quantum enabled science and engineering project. Simply I observe many gaps in the Indian scenario. There is an absence of a quantum roadmap. There is no visibility in the quantum efforts and successes. And at that place is a lack of required skill power. Equally the National Cyber Security Coordinator this is a cause of concern for me,” he added.

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DRDO scientists, who had participated in the conference, say that while India has come a long way in breakthrough engineering science since 2019, more can be done to bring all the efforts together.

Meanwhile, in ii very significant developments in the sector, India’s Union Budget of 2020-21 saw the allotment of Rs 8,000 crore towards the National Mission on Quantum Technologies and Applications and in December 2021, the Indian Regular army, with support from the National Security Quango Secretariat (NSCS) established the Quantum Lab at Military College of Telecommunication Applied science, Mhow to spearhead research and training in this key developing field.

Source: https://indianexpress.com/article/explained/explained-what-is-quantum-tech-demo-by-drdo-and-iit-delhi-all-about-7789057/