Quantum computing thread

tphuang

tphuang

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Anhui Wentian Quantum Tech announced that its WT-QRNG300 random number chip has passed commercial cryptography testing and becoming the first quantum random number chip product in China to be certified.

very important for cryptographic tech security.
 
supercat

supercat

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Chinese researchers claim that Zuchongzhi 3.0 rivals Google Willow. Specifically, it performed a computational task that would take the most advanced supercomputer over 6.4 billion years to complete.
  • Chinese researchers write in a paper on arXiv that their Zuchongzhi 3.0 quantum computer performed a computational task that would take the Frontier supercomputer over 6.4 billion years to complete.
  • The Zuchongzhi 3.0 system features 105 qubits with high fidelities and achieved one million samples from an 83-qubit random circuit in mere seconds, surpassing prior benchmarks set by Google’s Sycamore processor.
  • While Zuchongzhi demonstrates quantum advantage through scale and speed, comparisons with Google’s Willow processor emphasize diverging research focuses, with Willow advancing fault tolerance critical for practical quantum applications.
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Establishing a New Benchmark in Quantum Computational Advantage with 105-qubit Zuchongzhi 3.0 Processor​

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L

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  • China has launched a global initiative to develop post-quantum cryptographic algorithms, diverging from US-led efforts to establish encryption standards.
  • China's Institute of Commercial Cryptography Standards (ICCS) is soliciting proposals for encryption methods that can withstand quantum attacks, evaluating them for security, performance, and feasibility.
  • As reported by New Scientist, experts suggest China’s move reflects concerns over potential US intelligence “back doors” in encryption standards and a broader push for technological self-reliance.
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The US-run NIST will monitor China’s efforts and may incorporate strong Chinese-developed algorithms into its own framework.
 
supercat

supercat

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China Focus: Chinese scientists achieve breakthrough in integrated photonic quantum chips​

This breakthrough opens a new pathway for the preparation and manipulation of large-scale quantum entangled states, which are critical for the development of quantum computing and quantum network technologies, Gong said.
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Continuous-variable multipartite entanglement in an integrated microcomb​

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supercat

supercat

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Official report about Zuchongzhi 3.0:

Chinese Team Officially Report on Zuchongzhi 3.0, Claims Million Times Speedup Over Google’s Sycamore​

  • A Chinese research team demonstrated that Zuchongzhi 3.0, a 105-qubit superconducting quantum processor, completed a computational task in seconds that would take the world’s most powerful supercomputer an estimated 6.4 billion years to replicate.
  • The experiment used random circuit sampling, a benchmark designed to favor quantum processors, and demonstrated a computational gap six orders of magnitude greater than Google’s 67-qubit Sycamore experiment.
  • While this result reinforces quantum advantage claims, the benchmark does not directly translate to practical applications, and improvements in classical algorithms may challenge its long-term significance.
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Establishing a New Benchmark in Quantum Computational Advantage with 105-qubit Zuchongzhi 3.0 Processor​

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