Latest Quantum Research & Methods News
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Oct- 2023 -14 OctoberIndustry
Jiuzhang 3.0: China’s Photonic Quantum Computer
Chinese researchers have announced Jiuzhang 3.0, a new photonic quantum computing prototype that set a record by detecting 255 photons in a boson sampling experiment. Unveiled in October 2023 by a team led by renowned physicist Pan Jianwei, Jiuzhang 3.0 pushes the boundaries of photonic quantum computing with a demonstration that is 10 quadrillion times faster at solving a Gaussian…
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Aug- 2023 -7 AugustResearch
New Hybrid Quantum Monte Carlo Algorithm
Researchers Xiaosi Xu and Ying Li have developed a “quantum-assisted” Monte Carlo method that uses a small quantum processor to boost the accuracy of classical simulations. The breakthrough, published in Quantum in 2023, addresses the notorious sign problem in quantum Monte Carlo calculations – a key issue that causes explosive uncertainty in simulations of electrons and other fermions. By incorporating…
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Jun- 2023 -22 JuneResearch
Intel’s Tunnel Falls: 24,000 Quantum Chips Per Wafer and the Manufacturing Argument Made Real
22 Jun 2023 - Every conversation about silicon spin qubits eventually arrives at the same claim: because these qubits are essentially single-electron transistors, they can be manufactured using the same processes that produce billions of classical transistors every year. The implication is staggering — a scalable quantum computer rolled off a semiconductor production line, not hand-assembled in a physics lab.…
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Feb- 2023 -24 FebruaryResearch
Google Claims Breakthrough in Quantum Error Correction
Feb 2023 – Quantum computers hold the promise of tackling problems beyond the reach of classical machines, but they are notoriously fragile. Even tiny disturbances can introduce errors into quantum computations. To build a fault-tolerant quantum computer – one that can reliably run long computations – scientists have to keep these errors in check. Google’s Quantum AI team just reported…
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Jan- 2023 -29 JanuaryResearch
Scientists Achieve Entanglement Between Two Light Sources
Researchers from the University of Copenhagen and Ruhr University Bochum have made a significant breakthrough in quantum technology by achieving controlled interaction between two quantum light sources, or quantum emitters, embedded in a nanophotonic waveguide. This development, reported in Science, is a foundational step toward building scalable quantum computers and enhancing quantum communication systems. In simple terms, quantum emitters are…
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Nov- 2022 -30 NovemberIndustry
IBM Osprey: A 433-Qubit Quantum Leap
IBM has announced Osprey, a superconducting quantum processor with a record-breaking 433 qubits – by far the largest of its kind as of its 2022 debut. Revealed at the IBM Quantum Summit in November 2022, Osprey more than triples the qubit count of IBM’s previous 127-qubit Eagle chip. IBM says this new processor “brings us a step closer to the…
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Aug- 2022 -25 AugustResearch
Silicon’s First Attempts at Self-Repair: Phase-Flip Error Correction Demonstrated in Semiconductor Spin Qubits
25 Aug 2022 - Seven months ago, three teams simultaneously proved that silicon spin qubits could operate above the fault-tolerance threshold — the quality of individual gates good enough, in principle, for error correction to work. That was the prerequisite. Now comes the thing itself. Two independent groups have demonstrated quantum error correction in semiconductor spin qubits for the first…
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Apr- 2022 -29 AprilIndustry
Record-Breaking Quantum Transmission Via Micius
A team of Chinese physicists has achieved a landmark advance in quantum communication, successfully teleporting quantum states between two ground stations 1,200 kilometers apart via Micius satellite. The experiment, led by Pan Jianwei of the University of Science and Technology of China, marks the longest-distance quantum teleportation ever demonstrated, shattering previous records that were limited to tens or hundreds of kilometers.…
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Jan- 2022 -26 JanuaryResearch
Three Labs, One Week, One Threshold: Silicon Qubits Cross the Fault-Tolerance Line
26 Jan 2022 - For a decade, silicon spin qubits have been quantum computing's most tantalizing "not yet." The pitch was always compelling: qubits built from the same material that powers every smartphone and data centre on earth, manufactured using processes the semiconductor industry has spent half a century perfecting. But the performance gap was real. While superconducting circuits and…
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Nov- 2021 -30 NovemberIndustry
IBM Eagle: The First 100+ Qubit Quantum Processor
IBM has announced Eagle, a 127-qubit superconducting quantum processor – the world’s first quantum chip to surpass 100 qubits. Unveiled at the IBM Quantum Summit in late 2021, Eagle marks a major milestone in quantum computing, nearly doubling the qubit count of IBM’s previous 65-qubit “Hummingbird” processor and overtaking the scale of rival devices like Google’s 53-qubit Sycamore. IBM’s researchers…
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Jun- 2021 -30 JuneIndustry
Zuchongzhi 2.0: China’s Superconducting Quantum Leap
A team of Chinese physicists has unveiled Zuchongzhi 2.0, a cutting-edge 66-qubit superconducting quantum computing prototype that pushes the frontiers of computational power. Announced by the CAS Center for Excellence in Quantum Information, this new quantum machine builds on its predecessor (Zuchongzhi 1.0) with more qubits and higher fidelity, achieving a milestone known as quantum computational advantage (or “quantum supremacy”)…
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May- 2021 -30 MayIndustry
Zuchongzhi 1.0: China’s New Superconducting Processor
In May 2021, scientists at the Chinese Academy of Sciences (CAS) unveiled Zuchongzhi 1.0, a 62-qubit programmable superconducting quantum computer that set a new benchmark in the quantum computing race. Named after a 5th-century Chinese mathematician, Zuchongzhi 1.0 contains the largest number of superconducting qubits ever assembled in a single processor so far.
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Apr- 2021 -16 AprilResearch
Breaking RSA-2048 With 20M Noisy Qubit
An interesting paper was published on arXiv, the preprint server. Titled “How to factor 2048 bit RSA integers in 8 hours using 20 million noisy qubits,” the paper by Craig Gidney and Martin Ekerå combines previous techniques from Shor (1994), Griffiths-Niu (1996), Zalka (2006), Fowler (2012), Ekerå-Håstad (2017), Ekerå (2017, 2018), Gidney-Fowler (2019), and Gidney (2019) to significantly reduce the…
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Dec- 2020 -8 DecemberIndustry
China’s Jiuzhang Achieves Photonic Quantum Advantage
A team of Chinese scientists has announced a breakthrough in quantum computing with the development of Jiuzhang, a photonic quantum processor that achieved a major computational milestone. In experiments reported on December 3, 2020, Jiuzhang completed in 200 seconds a mathematical problem that researchers estimate would take a classical supercomputer on the order of 2.5 billion years to solve.
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Oct- 2019 -26 OctoberIndustry
Google’s Sycamore Achieves Quantum Supremacy
Google announced that its 53-qubit quantum processor, Sycamore, has achieved a long-anticipated milestone known as “quantum supremacy.” In a paper published in Nature, the Google AI Quantum team reported that Sycamore performed a specific computation in approximately 200 seconds – a task they estimated would take the world’s fastest classical supercomputer at least 10,000 years to complete.
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