How advanced is China in quantum computing?

While the Juizhang 2 has a narrower field of applications, it is capable of reaching speeds of 100 sextillions (one followed by 23 zeros) times faster than the largest conventional computers. Jiuzhang 2 is an upgrade of a machine built by a team led by Chinese physicist Lu Chaoyang last year.

Does China have a quantum satellite?

In 2016, China launched the world’s first quantum communication satellite (QUESS, or Mozi/Micius) and achieved QKD with two ground stations which are 2,600 km apart. The researchers have also pushed the record for ground-based QKD to beyond 500 km using a new technology called twin-field QKD (TF-QKD).

Does China have quantum communication?

Chinese scientists have established the world’s first integrated quantum communication network, combining over 700 optical fibers on the ground with two ground-to-satellite links to achieve quantum key distribution over a total distance of 4,600 kilometers for users across the country.

What does a quantum satellite do?

The satellite serves as the source of pairs of entangled photons, twinned light particles whose properties remain intertwined no matter how far apart they are. It is this property that lies in the heart of the most secure forms of quantum cryptography, the entanglement-based quantum key distribution.

Which countries have quantum distribution?

China
Today, China has taken the lead in quantum key distribution: The largest demonstrated network is one that began operating in 2017 in China within the cities of Beijing, Jinan, Hefei, and Shanghai with a 1,200 mile quantum backbone network connecting them.

Does China have quantum supremacy?

Quantum supremacy has been achieved by a more complex quantum computer. A quantum computer made by researchers in China has solved a calculation in 4.2 hours that would take a classical computer thousands of years.

Who leads the world in quantum computing?

China now leading the quantum computing race. Unlike Google’s 53-qubit Sycamore quantum supercomputer that is based on electrons and superconductors, the latest Chinese achievement in the field dubbed Zuchongzhi can process 66 qubits and is based on optical circuits and photons.

Does the US military have a quantum computer?

Among the armed forces, the US Army Research Office funds extensive research in quantum computing, while the US Air Force sees it as transformative technology for information and space warfare.