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Japan Unveils Quantum Computer Benchmark and Room-Temp Breakthrough
Developing
In Short: This breakthrough paves the way for designing materials that can generate multiple qubits at room temperatures, a critical advancement for quantum computing and sensing technologies.
Japan has unveiled QUOPS, the Quantum Universal Operations Performance System, a new benchmark designed to assess the performance of quantum computers across different technologies and architectures.
According to Charlie Baldwin, R&D manager at Quantinuum, the benchmark allows researchers to tweak different components and improve scores, providing a standardized way to compare various quantum computing systems.
Dr. Timothy Proctor at Sandia National Laboratories explained that QUOPS aims to be a flagship benchmark for the field, summarizing the computational power of different quantum computers and tracking progress towards practical applications.
The complexity of quantum computers arises from the diverse approaches researchers have taken in their construction, making it challenging to assess their performance.
Nicholas Harrigan, product marketing manager for quantum at NVIDIA, noted that QUOPS will enable people to assess larger fault tolerance systems and make informed decisions about future developments.
In a separate development, researchers at Kyushu University and Kobe University have achieved quantum coherence at room temperature, a significant step towards practical quantum computing.
Associate Professor Nobuhiro Yanai and his team embedded a chromophore, a dye molecule, in a metal-organic framework (MOF) to maintain quantum coherence without being affected by surrounding disturbances.
This breakthrough paves the way for designing materials that can generate multiple qubits at room temperatures, a critical advancement for quantum computing and sensing technologies.
The researchers used pentacene, a polycyclic aromatic hydrocarbon, to suppress molecular motion and achieve room-temperature quantum coherence.
Their findings mark a crucial advancement for quantum computing and sensing technologies, potentially enabling higher resolution and sensitivity in quantum sensing.
While quantum computing is still in its early stages, these developments bring us closer to practical applications and more accurate assessments of quantum computer performance.
What this adds
The room-temperature quantum coherence achieved by the Japanese researchers is a significant step towards practical quantum computing, but it is still in the early stages of development.
Background
Researchers at the University of Florence have achieved quantum entanglement between a glass sphere and light at room temperature, a significant step for quantum technologies.
Japan has unveiled its first full-stack neutral-atom quantum computer, named 'Shunkai', marking a significant advancement in quantum computing technology.
What's still developing
- “We realized there are other things that could be done. And we played around with different components of this implementation, tweaked different parts, and were able to improve the score to some extent,” co-author Charlie Baldwin, R&D manager at Quantinuum, told IFLScience.
- Alfredo has a PhD in Astrophysics and a Master's in Quantum Fields and Fundamental Forces from Imperial College London.
- It’s a special set of programs that can run on any kind of quantum computer, something that's particularly important because there are many, many ways to build one – which is why assessing their performance up to now has been a tad tricky.
- “I think a really important thing with benchmarks in general is that it can be very easy for them to misdirect because the field moves on,” Proctor told IFLScience.
- Despite being a long way from that lofty goal, we do have working quantum computers today, and now we might have our first good way of assessing how useful they are.
- With a regular computer you might talk about its processing speed, number of cores, or amount of RAM, all different ways of assessing how good it will be at running certain programs.
- Quantum computers could change the way we simulate everything.
- In a study published in Science Advances, a group of researchers led by Associate Professor Nobuhiro Yanai from Kyushu University’s Faculty of Engineering, in collaboration with Associate Professor Kiyoshi Miyata from Kyushu University and Professor Yasuhiro Kobori of Kobe University, reports that they have achieved quantum coherence at room temperature: the ability of a quantum system to maintain a well-defined state over time without getting affected by surrounding disturbances This breakthrough was made possible by embedding a chromophore, a dye molecule that absorbs light and emits color, in a metal-organic framework, or MOF, a nanoporous crystalline material composed of metal ions and organic ligands.
- Qubits based on spin can exist in a combination of these states and can be “entangled,” allowing the state of one qubit to be inferred from another.
- Notably, chromophores can be used to excite electrons with desirable electron spins at room temperatures through a process called singlet fission.
- However, so far, it has been challenging to entangle four electrons and make them respond to external molecules, that is, achieve quantum sensing using a nanoporous MOF.
- This is opening a new approach to quantum computation & technology So, after all the hype and scare pumped into quantum computing recently, it turns out it’s just another cold fusion: always just ten years away.