Quantum Leap: Indian Scientists Achieve Breakthrough in Quantum Computing

In a monumental stride for the nation's scientific community, researchers at the Indian Institute of Science (IISc), Bangalore, have announced a groundbreaking advancement in quantum computing. This marks a significant step towards realizing the immense potential of quantum technology, potentially revolutionizing fields ranging from medicine to materials science.

The team, led by Professor Anirban Pathak of the Department of Physics, has successfully demonstrated a novel method for maintaining the delicate quantum states of qubits – the fundamental building blocks of quantum computers – for a significantly longer duration than previously achieved. This increased 'coherence time' is crucial for performing complex quantum computations. Imagine trying to build a sandcastle while the tide is constantly washing away the base; similarly, loss of coherence makes quantum computations unreliable. Professor Pathak's team has essentially found a way to make the sandcastle more resistant to the tide.

Extending Coherence Time: A Quantum Challenge

Quantum computers leverage the peculiar laws of quantum mechanics to solve problems that are intractable for even the most powerful conventional computers. However, harnessing these quantum effects is exceptionally challenging. One of the biggest hurdles is maintaining the fragile quantum states of qubits. These states are easily disrupted by environmental noise, leading to errors in computation. The IISc team's innovation tackles this problem head-on.

Their approach involves using a unique combination of materials and sophisticated control techniques to isolate the qubits from external disturbances. By minimizing these disturbances, they have managed to extend the coherence time of their qubits by a factor of ten compared to previous efforts using similar materials. This improvement allows for more complex and accurate quantum calculations.

Real-World Impact: From Drug Discovery to Materials Design

The implications of this breakthrough are far-reaching. Quantum computers, with their superior computational power, hold the promise of revolutionizing various sectors. For instance, they could accelerate the discovery of new drugs by simulating molecular interactions with unparalleled accuracy. They could also enable the design of novel materials with specific properties, leading to advancements in industries such as aerospace and energy. Moreover, quantum computers are expected to revolutionize cryptography and enhance data security.

Speaking to News Reporter Live, Professor Pathak reportersays, "Our work provides a crucial stepping stone towards building practical quantum computers. Longer coherence times translate directly into greater computational power and the ability to tackle more complex problems. We are excited about the possibilities this opens up for scientific discovery and technological innovation in India."

The Road Ahead: Building a Quantum Ecosystem in India

This development aligns with the Indian government's push to establish a robust quantum ecosystem in the country. Initiatives like the National Quantum Mission aim to foster research and development in quantum technologies, train skilled manpower, and translate scientific breakthroughs into practical applications. With institutions like IISc and IITs actively engaged in quantum research, India is poised to become a global leader in this transformative field. As of March 23, 2026, several projects funded by the mission are already underway across the country. The DRDO is also exploring potential applications of quantum computing for defense purposes.

Quantum Supremacy: India's Position in the Global Race

The global race to achieve 'quantum supremacy' – the point where a quantum computer can perform a task that is impossible for any classical computer – is intensifying. While challenges remain, the IISc team's achievement demonstrates India's growing capabilities in this critical area. The researchers are now focusing on scaling up their system to create multi-qubit processors, which are essential for building fault-tolerant quantum computers. The next phase of their research will involve exploring different qubit architectures and developing error-correction techniques to further enhance the reliability of quantum computations. The team hopes to collaborate with other research institutions and industry partners to accelerate the development of quantum technologies in India.