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“A quantum computer can solve problems that have septillion (1 followed by 24 zeros) variables in a matter of seconds, while even today’s most powerful supercomputer would take centuries,” Pan said.
However, the current model only uses five photon qubits — subatomic light particles that store data — so its calculation ability is less than that of a modern cellphone. But Pan said with 50 qubits, which will be achieved by 2020, its speed in solving these problems could surpass the fastest supercomputer.
By the end of this year, Pan said he will scale up his machine to have 20 qubits, which would be more powerful in solving complex problems than the fastest laptop on the market.
He also plans to open the machine’s cloud computing platform to public use, according to his team’s studies, published on Tuesday in Nature Photonics, an international science journal.
Quantum computers, however, will not replace personal desktops at home, Pan said. For simple tasks like internet browsing, “the quantum computer’s power is mostly wasted and therefore has no noticeable edge compared with already highly advanced PCs”, he said.
Today’s most advanced quantum computers use around five qubits, which may sound underwhelming. But 100 qubits can do around 1.3 nonillion (1 followed by 30 zeros) calculations — over 10 quadrillion times larger than the global GDP in 2014.
Quantum computers also use a fraction of the energy that supercomputers use because only a fewdozen qub-
The Ministry of Science and Technology launches a project to create a quantum chip containing three qubits (units of quantum information).
Chinese scientist Pan Jianwei and his team becomethe first in the world to solve linear equations using quantum computers.
First generation three-qubit quantum chip prototype is born.
Google, NASA and University of California, Santa Barbara, announce they had stabilized an array of nine-qubit entanglement in superconducting quantum processors. (Entanglement is when particles are grouped inways that allowthem to influence each other.) The second generation of China’s its are required to unleash enormous computing powers, Zhu said. In addition, Chinese scientists have discovered new, energy efficient ways to keep the computer at temperatures needed to operate, further reducing costs.
Due to the potential of quantum computing, the United States, the United Kingdom and other European nations are in a race for quantum supremacy.
High-tech companies, such as IBM, Google, Microsoft and Intel, also are developing quantum computers using different subatomic particles, such as electronics or superconducting elements.
What makes China’s photon quantum computer special is its resistance to three-qubit quantum chip is born.
China becomes the first country to achieve a 10-qubit entanglement in photons. Third- and fourth- generation quantum chips, containing four and 10 qubits, respectively, are born. China creates theworld’s first photon quantum computer
Chinese scientists stabilize an array of 10-qubit entanglement in superconducting quantum processors. They plan to scale up the photon quantum computer to 20 qubits by year’s end.
China plans to complete a photon quantum computer with 50 qubits, reaching global quantum supremacy. interference and ability to scale up, said Lu Chaoyang, a quantum physicist at the University of Science and Technology of China.
“Unlike electrons or protons found in other quantum computers, photons do not generally react with the environment, so photon quantum computers are more stable,” he said.
“China is also the world leader in optics technology, so we have the resources and expertise to quickly increase the size of our computers.”
Apart from increasing the hardware, Chinese scientists also are developing software and a new programming language to fully utilize the power of quantum computing, he added.