Researchers at the University of Science and Technology of China have set a world record for entanglement of 18 quantum bits (qubits), keeping China ahead in the international research competition to establish a functioning quantum computer.
The computing power of a quantum computer grows exponentially with the number of qubits that can be manipulated, and a big enough system could solve large computation problems that are beyond the ability of current classical computers, says the Chinese Academy of Sciences' Pan Jianwei.
For example, a quantum computer with 50 qubits would be more powerful than today's fastest supercomputer in solving quantum sampling problems.
Pan's team has been leading the race for quantum supremacy, achieving the first five, six, eight, and 10 entangled photons in the world.
Meanwhile, the U.S. and Europe are actively collaborating on quantum research, and high-tech companies such as Google, Microsoft, and IBM have their own quantum computing research underway.
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