Quantum computing thread

jli88 said:

A few points:

1. I didn't say everyone is ignoring it, I said everyone in the field is aware it is going to be a possibly multiple decades before it can succeed to replace or supplement normal computers.
2. The physicists that I specially follow include: Lu Chao-yang, he is a genius researcher, an authority on quantum computers and communications and directly works under Pan Jianwei.
3. Who is using quantum computers except as a gimmick? To note: this doesn't include quantum communications, sensing, and quantum proof-cryptography

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sunnymaxi said:

This may be one of the biggest breakthrough in recent times.

Chinese Physicists Just Solved Quantum Computing’s Hardest Challenge - Protecting Qubits From Environmental Noise. Pan Jianwei, often called "the father of quantum" and his team used their Zuchongzhi 2 quantum processor to create a 'quantum Lego block' that simply refuses to fall apart, even when shaken by noise or errors.

This is the first ever experimental realisation of non equilibrium higher order topological phases, a huge deal because it points to quantum bits that don’t break down, solving one of the biggest problems in quantum computing. And they did it on a 66 qubit programmable quantum chip, using just a 6x6 section to simulate and detect these ultra stable corner states, something that doesn’t naturally exist in nature.

If this scales, we’re talking practical, fault tolerant quantum computers that can power next level AI, drug discovery, and massive scientific simulations.

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tphuang said:

Again, take a look at the applications. Right now, it is basically only being used in drug discovery and fintech sector. And company involved have already created drugs that got paid.

So whatever it’s state of general application is, it clearly can already be used in drug discovery.

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jli88 said:

Lu Chaoyang himself is an important member of the team, and he has explicitly said that this is just a stepping stone, real application is long way off.

Here's the actual paper if you want to confirm:

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Here's a review article of quantum computer usage in drug discovery.

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Quoting

"quantum computers are still far from being used as daily tools in the pharmaceutical industry"

Any claimed application in drug discovery today is just gimmick to gather headlines and funding.

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subotai1 said:

Reality is that most of the quantum advancement its being kept quiet. Think about it. As an example, you make a breakthrough cracking certain kinds of cryptography. Do you want to tell everyone about it or exploit it? Same for other applications.

The companies that are leading this like Alphabet, Capgemini, Pasqal, Xanadu, are split between technology advancement and application of it to solve business problems. They are not being public about success or failures. There is too much at stake.

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Bochou Quantum has secured tens of millions of yuan in angel round funding to accelerate the industrialization of its core quantum computing technologies.​

• A theoretically optimal quantum solver for NP problems (O(N) complexity).​
• A quantum machine learning model outperforming classical methods in time series prediction, highlighting the role of entanglement.​
• A novel quantum kernel expansion algorithm and efficient compilation technology for simulating many-body systems, advancing applications in quantum chemistry, materials science, and dynamics.​

China Jiliang University announced two new achievements in quantum sensing, providing a new technological path for microwave detection.​

China Jiliang University has announced two groundbreaking advances in quantum sensing, published in ACS Photonics a top-tier optics journal. Both achievements were led by the university as the primary institution, highlighting China’s growing innovation in quantum precision measurement.

Robust Quantum Spectrum Analysis for FM Microwaves:
Led by Dr. Fei-Fei Zhou (first and corresponding author) with Prof. Xin-Qing Wang as co-corresponding author, the team developed a novel quantum spectrum analyzer using {111}-oriented industrial-grade diamond. By leveraging precision machining and eliminating complex magnetic field calibration, this method enables ultra-wideband detection with high robustness under strong magnetic fields. The technique successfully achieved real-time spatial imaging of frequency-modulated (FM) microwave signals, offering a low-cost, practical solution for applications in communication systems, RF chip testing, and electromagnetic compatibility.



High-Resolution Microwave Field Imaging Using hBN:
Also led by Dr. Fei-Fei Zhou (first corresponding author), the team collaborated with researchers from Southern University of Science and Technology and Nanyang Technological University. They pioneered the use of hexagonal boron nitride (hBN) a 2D van der Waals material — embedded with boron vacancy centers to achieve non-invasive, high-resolution optical imaging of microwave fields in real time. By combining ion implantation and wide-field electron spin resonance imaging, they enabled in-situ visualization of electromagnetic distributions in microwave devices like antennas and filters.



These breakthroughs open new paths for quantum-enabled testing, fault diagnosis, and performance optimization in next-generation 5G/6G communication systems and radar technologies. The work underscores China Jiliang University’s rising leadership in quantum sensing innovation.

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