News on China's scientific and technological development.

T

taxiya

Brigadier
Registered Member
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Progress in quantum computing.

Abstract​

Quantum walks are the quantum mechanical analog of classical random walks and an extremely powerful tool in quantum simulations, quantum search algorithms, and even for universal quantum computing. In our work, we have designed and fabricated an 8x8 two-dimensional square superconducting qubit array composed of 62 functional qubits. We used this device to demonstrate high fidelity single and two particle quantum walks. Furthermore, with the high programmability of the quantum processor, we implemented a Mach-Zehnder interferometer where the quantum walker coherently traverses in two paths before interfering and exiting. By tuning the disorders on the evolution paths, we observed interference fringes with single and double walkers. Our work is an essential milestone in the field, brings future larger scale quantum applications closer to realization on these noisy intermediate-scale quantum processors.
Copyright © 2021, American Association for the Advancement of Science.
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V

voyager1

Captain
Registered Member
KYli said:
$10,000 vs $2720 per kg as of now. One big advantage is flexibility for launching in different payload.
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Good news, hadn't heard about them. Still, only 20 sats is not that good when you realise the number of sats that have to be lifted to provide a Starlink-like service.

Reusability, reusability, reusability is the key here.

Elon caught the rest of world with the pants down. China focuses too much on solid fuels (understandably), but this also limits its rocket development.

Reusability is everything. Xi himself should go down at the state offices and personally lecture them about it lol
 
K

KYli

Brigadier
voyager1 said:
Good news, hadn't heard about them. Still, only 20 sats is not that good when you realise the number of sats that have to be lifted to provide a Starlink-like service.

Reusability, reusability, reusability is the key here.

Elon caught the rest of world with the pants down. China focuses too much on solid fuels (understandably), but this also limits its rocket development.

Reusability is everything. Xi himself should go down at the state offices and personally lecture them about it lol
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China is not going to rely upon single method of reusability rockets. Rapid deployment of solid fuels that can be deployed from ships to launch sites and the flexibility of different payload can keep these rockets being competitive.
 
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