In a groundbreaking development, Indian scientists have achieved a significant milestone in quantum computing, demonstrating sustained entanglement of 64 qubits – a crucial step towards building a practical quantum computer. The breakthrough, announced today by researchers at the Centre for Quantum Technologies (CQT) in Bangalore, promises to accelerate advancements in various fields, from medicine to materials science.

Quantum computing, a revolutionary approach to computation, harnesses the bizarre principles of quantum mechanics to solve problems that are intractable for even the most powerful conventional computers. The qubit, or quantum bit, is the basic unit of information in a quantum computer. Unlike classical bits, which can be either 0 or 1, qubits can exist in a superposition of both states simultaneously, allowing quantum computers to explore a vast number of possibilities concurrently. Entanglement, another key quantum phenomenon, links two or more qubits together in such a way that they share the same fate, no matter how far apart they are. Sustaining entanglement across a large number of qubits is a major challenge in building practical quantum computers.

Quantum Entanglement Breakthrough

The CQT team, led by Dr. Anita Sharma, achieved this sustained entanglement using a novel architecture based on superconducting transmon qubits. These qubits, tiny electronic circuits cooled to near absolute zero, are particularly promising for building scalable quantum computers. The team's innovation lies in their ability to maintain the delicate quantum entanglement for an extended period, overcoming the problem of decoherence – the loss of quantum information due to environmental noise. This has been a major hurdle in the field.

"Maintaining entanglement is like trying to balance a house of cards in a hurricane," explained Dr. Sharma, speaking to News Reporter Live. "Our new architecture incorporates advanced error correction techniques and shielding to protect the qubits from external disturbances, allowing us to maintain entanglement for significantly longer than previously possible." reportersays

Practical Applications of Quantum Computing

The implications of this breakthrough are far-reaching. Quantum computers have the potential to revolutionize various industries. In drug discovery, they could be used to simulate the behavior of molecules and design new drugs and therapies with unprecedented precision. In materials science, they could accelerate the discovery of new materials with desired properties, such as high-temperature superconductors or lightweight, high-strength alloys. Quantum computers are also expected to have a significant impact on artificial intelligence, finance, and cryptography.

"Imagine designing a new fertilizer that maximizes crop yield while minimizing environmental impact," stated Dr. Rajesh Kumar, a senior scientist at ISRO, commenting on the development. "Quantum computing could make such possibilities a reality. This achievement by CQT is a major boost for India's scientific capabilities."

India's Quantum Computing Mission

This achievement aligns perfectly with the Indian government's National Quantum Mission, which aims to foster research and development in quantum technologies and build a quantum computer in India. The mission, with a budget of ₹8000 crore, supports research projects at leading institutions like IITs and DRDO, as well as private companies.

Meanwhile, the CQT team is now working on scaling up their system to even larger numbers of qubits and improving the fidelity of quantum operations. The next goal is to demonstrate quantum supremacy, which is achieved when a quantum computer solves a problem that is impossible for any classical computer. This sustained quantum entanglement brings that goal within closer reach. The researchers are also exploring different types of qubits and quantum algorithms to further enhance the capabilities of their quantum computer. As of today, March 24, 2026, the future of quantum computing in India looks incredibly promising.

Frequently Asked Questions

What does this quantum computing breakthrough mean?

This breakthrough signifies a major step towards building practical quantum computers, as it demonstrates the ability to maintain entanglement across a large number of qubits for a sustained period. This opens up possibilities for solving complex problems in various fields like medicine, materials science, and artificial intelligence that are currently impossible for classical computers.

How was the research on quantum entanglement conducted?

The research was conducted at the Centre for Quantum Technologies (CQT) in Bangalore using superconducting transmon qubits cooled to near absolute zero. The team developed a novel architecture incorporating advanced error correction techniques and shielding to protect the qubits from external disturbances, allowing them to maintain entanglement for a significant duration.

What are the practical applications of quantum computers?

Quantum computers have diverse applications, including designing new drugs and therapies, discovering new materials with specific properties, improving artificial intelligence algorithms, optimizing financial models, and breaking current encryption methods. They can solve complex optimization and simulation problems much faster than classical computers.