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Category: quantum physics – Page 14

Zuchongzhi-3, a superconducting quantum computing prototype with 105 qubits and 182 couplers, has made significant advancements in random quantum circuit sampling. This prototype was successfully developed by a research team from the University of Science and Technology of China (USTC).

This prototype operates at a speed that is 1015 times faster than the currently available and one million times faster than the latest results published by Google. This achievement marks a milestone in enhancing the performance of quantum computation, following the success of Zuchongzhi-2. The research findings have been published as the cover article in Physical Review Letters.

Quantum supremacy is the demonstration of a quantum computer capable of performing tasks that are infeasible for classical computers. In 2019, Google’s 53-qubit Sycamore processor completed a random circuit sampling task in 200 seconds, a task that would have taken approximately 10,000 years to simulate on the world’s fastest supercomputer at the time.

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This quantum light manipulation breakthrough paves the way for unprecedented technologies.

Scientists from the University of Basel and the University of Sydney successfully manipulated and identified interacting packets of light energy, or photons, with unprecedented precision.

This breakthrough, published in Nature Physics, marks the first-ever observation of stimulated light emission at the single-photon level—a phenomenon first predicted by Albert Einstein in 1916.

By measuring the time delay between photon interactions, researchers demonstrated how photons could become entangled in a “two-photon bound state,” opening up new possibilities for quantum computing and enhanced measurement techniques.

This discovery has profound implications for photonic quantum computing and metrology, particularly in fields like biological microscopy, where high-intensity light can damage delicate samples. Dr. Sahand Mahmoodian, a leading researcher on the project, emphasized that harnessing quantum light could lead to more precise measurements with fewer photons. Meanwhile, tech companies like PsiQuantum and Xanadu are already exploring how this research could contribute to fault-tolerant quantum computing. As scientists refine their ability to manipulate quantum light, the door opens to a future of more powerful computing, ultra-sensitive sensors, and revolutionary advancements in technology.

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Caltech engineers have made a breakthrough in quantum communication by successfully linking two quantum nodes with multiple qubits.

Using a novel multiplexing technique, they drastically increased the data transmission rate, setting the stage for large-scale quantum networks.

Laying the groundwork for quantum networks.

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A recent study from the University of Eastern Finland (UEF) examines how photons—the fundamental particles of light—behave when they encounter sudden changes in a material’s properties over time. This research reveals intriguing quantum optical effects that could advance quantum technology and help establish an emerging field known as four-dimensional quantum optics.

Four-dimensional optics is a field of research that explores how light interacts with structures that change both in time and space. This emerging area has the potential to revolutionize microwave and optical technologies by enabling capabilities such as frequency conversion, amplification, polarization control, and asymmetric scattering. Because of these possibilities, it has drawn significant interest from researchers worldwide.

In recent years, substantial progress has been made in this field. For example, a recent international study published in Nature Photonics.

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PsiQuantum has detailed the photonic quantum chips and cooling system it plans to use for a quantum computer with a million qubits.

The Omega quantum photonic chipset is purpose-built for utility-scale quantum computing and produced by Global Foundries in New York on 300mm wafer. The technology was detailed in a paper in Nature submitted last June and published this week.

This paper shows high-fidelity qubit operations, and a simple, long-range chip-to-chip qubit interconnect – a key enabler to scale that has remained challenging for other technologies.

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Microsoft’s Majorana 1 quantum chip introduces a breakthrough Topological Core, enabling stable and scalable qubits.

By leveraging topoconductors, this innovation paves the way for million-qubit machines capable of solving complex scientific and industrial challenges. With DARPA

Formed in 1958 (as ARPA), the Defense Advanced Research Projects Agency (DARPA) is an agency of the United States Department of Defense responsible for the development of emerging technologies for use by the military. DARPA formulates and executes research and development projects to expand the frontiers of technology and science, often beyond immediate U.S. military requirements, by collaborating with academic, industry, and government partners.

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Using the Frontier supercomputer, researchers have cracked a major challenge in nuclear physics: accurately predicting nuclear structure and forces at an unprecedented level of detail.

Their discoveries, including new insights into the shape-shifting nature of the 30-neon nucleus, could revolutionize scientific fields ranging from quantum mechanics to national security.

Revolutionizing Nuclear Predictions with Frontier.

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