Who is the leader in quantum computing in 2024?

Quantum computing is an exciting new field that harnesses the power of quantum mechanics to perform calculations exponentially faster than classical computers. Unlike traditional bits that can only be in a state of 0 or 1, quantum bits (qubits) can exist in a superposition of both states at once. This allows quantum computers to process multiple calculations simultaneously.

Who is the leader in quantum computing

The quantum computing landscape in 2024

By 2024, quantum computing has moved out of pure research and several companies and countries have made strong advancements. The leaders in the industry have working prototype quantum computers with 50-100 qubits. While still far from the millions of qubits likely needed for full scale quantum advantage, these systems allow for testing quantum algorithms and applications.

Companies leading the quantum computing race

Several tech giants have invested heavily in quantum computing, assembling world class research teams. Google, IBM, Microsoft, Intel, and Rigetti are the companies at the forefront. Each has taken a slightly different technological approach but have working quantum systems.


Google has made major investments in quantum computing over the past decade. They have developed superconducting quantum processors using aluminum and niobium metals kept at just above absolute zero. In late 2023, Google announced their “Sycamore 3” quantum processor with 75 qubits. This allows them to test more complex quantum algorithms.


IBM unveiled their “Osprey” quantum processor with 127 qubits in early 2024 using superconducting technology similar to Google’s. IBM also offers quantum computing access via the cloud to researchers worldwide. Over 200,000 users have run over 7 million experiments on IBM’s quantum systems to date.

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Microsoft has taken a unique approach creating a topological quantum bit (qubit) made of particles called anyons, which are more stable than conventional qubits. In 2024, they have a small test system with anyonic qubits totaling 51 qubits. This could eventually scale better than other technologies.

Countries pushing quantum advancement

Several countries have initiated large national quantum technology programs to spur innovation. The leaders here are China, the United States, and the European Union.


China has made quantum computing and communication a national priority. With strong government backing, they have focused both on basic research and building quantum hardware, including a 69 qubit superconducting quantum system. China aims to be the world leader in quantum capabilities by 2030.

United States

The US passed the National Quantum Initiative Act in 2018, which provides over $1 billion in quantum research funding. Much of this goes to universities, national labs, and companies like those above to solidify US leadership in quantum. Efforts are also underway to build the quantum workforce.

European Union

The EU launched a €1 billion quantum flagship initiative to ensure Europe doesn’t fall behind in quantum science and industry. Along with advancing basic research, this consortium of over 5,000 researchers across 22 countries focuses on bringing quantum applications to market in areas like finance, transportation, and medicine.

Applications of quantum computing

While full-scale universal quantum computers do not yet exist, researchers are actively exploring applications for when robust quantum systems can be built:

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Modeling molecules and materials

Quantum computers promise the ability to accurately model chemical reactions and molecular structures from drug compounds to solar cell materials to fertilizers. This could accelerate scientific insights and discoveries.

Optimizing systems

Classical computers struggle solve optimization problems with lots of variables like managing transportation fleets or delivery routes. Quantum algorithms have shown they can provide much better solutions much faster providing business and logistics efficiencies.

Artificial intelligence

Quantum machine learning algorithms have been designed to analyze complex data extremely quickly. This includes pattern recognition from sensors, identifying anomalies, and making predictions. Combining quantum computing and AI promises extremely powerful intelligence applications.

Secure communication

Quantum computing jeopardizes current encryption schemes. However, quantum mechanics also enables virtually unhackable communication through quantum key distribution. This will allow highly secure transfer of sensitive data. China already has a 2,000 km quantum communication system spanning much of the country on which government data travels.


In reviewing the companies, countries, and applications advancing quantum computing in 2024, Google and IBM have established themselves as technology leaders with working prototype quantum processors over 75 qubits. However, Microsoft, Intel, Rigetti and various startups are rapidly innovating as well with different technological approaches. China has also prioritized quantum research and development. While full, universal quantum computers likely remain years away, quantum computing in specialized applications could potentially provide advantages much sooner. The leadership race is on and it will be exciting to see how the landscape evolves through the 2020s and which players emerge ahead in the coming quantum era.


What company currently has the most qubits?

IBM has the most qubits in 2024 with their Osprey quantum processor featuring 127 superconducting qubits.

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Which quantum computer will be able to break encryption first?

This is not yet known, as millions of qubits will likely be needed to crack current encryption methods. The quantum computers with 50-100 qubits today remain far from this scale.

What countries have invested the most in quantum computing?

China and the United States have provided over $1 billion each in national quantum technology funding and are global leaders. The EU has also committed €1 billion through their quantum flagship program.

Who first came up with the idea of a quantum computer?

The idea is credited to physicist Richard Feynman who proposed in 1982 that quantum mechanical effects like superposition could be harnessed to perform computations in parallel. The concept was then formalized more from 1985-1992 by various scientists including David Deutsch, Peter Shor and Lov Grover.

When will quantum computers surpass classical computers?

This is difficult to predict. While quantum computers show promise to provide exponential speedups on specialized problems, creating a fault tolerant, universal quantum computer that outperforms classical supercomputers on a wider range of problems is still likely a decade or more away. But progress is accelerating.