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TU Wien and Chinese Scientists Achieve Breakthrough in Four-State Photon Quantum Gate Major Milestone in Optical Quantum Computing Researchers from TU Wien, working in partnership with Chinese research group, have achieved a key breakthrough in quantum technology. They have implemented an innovative quantum logic gate that enables calculations using pairs of photons, each capable of occupying four separate quantum states or their superpositions. The achievement marks an important milestone in the evolution of optical quantum computers . The study appears in Nature Photonics . Understanding the Core Principle of Quantum Computing The fundamental principle behind quantum computing is straightforward: whereas a classical computer processes information using binary values — "0" and "1" — quantum mechanics permits combinations of these states. A quantum bit , or qubit, can exist in both states simultaneously, enabling algorithms capable of solving certain problems fa...

Harvard Breakthrough: 3,000-Qubit Computer Runs Continuously, Marking a New Era in Technology Edited by Fasi Uddin 29 September 2025 The Quantum Computing Revolution Begins A frequently cited example of quantum computing's extraordinary promise notes that just 300 qubits could theoretically store more data than all the particles in the observable universe. Now, Harvard researchers have surpassed this benchmark by unveiling a 3,000-qubit quantum computer , reported in Nature . Even more remarkable, this is the first system capable of operating continuously without constant restarts — a critical leap toward the future of supercomputing. This achievement is not just a scientific milestone. It represents the dawn of a news technological era that could revolutionize fields like finance, healthcare, climate research and artificial intelligenc e. For updates on how science breakthrough shape society, explore FSNews365 . A Milestone in Quantum Technology Led by Professor Mikhail Lukin...

Quantum Computing Enters a New Era: Majorana Zero Modes in Topological Processors Breakthrough in Topological Quantum Computing Microsoft-led research team, working alongside UC Santa Barbara physicists, has achieved a milestone in quantum computing by unveiling the first-ever eight-qubit topological quantum processor. Designed as a proof-of-concept, this innovative chip represents a critical step toward the long-envisioned development of topological quantum computers. Announcement from Microsoft Station Q Microsoft Station Q Director Chetan Nayak, UCSB physics professor and Technical Fellow for Quantum Hardware at Microsoft, remarked, "We are unveiling multiple advancements that we have kept under wraps until now." The announcement, made at Station Q's annual conference in Santa Barbara, coincides with a Nature paper authored by Station Q, Microsoft collaborators and other researchers documenting their measurements of these groundbreaking qubits. Majorana Zero Modes and ...

Achieving Universal Control in Quantum Dot Systems with Four Singlet-Triplet Qubits Introduction to Quantum Dot-Based Quantum Systems Precise manipulation of interacting s pins in quantum systems is central to develo ping reliable, high- performing quantum com puters, but remains a significant challenge in nanoscale systems with numerous quantum-dot-based s pins. Breakthrough from TU Delft: Universal Control of Four Singlet-Tri plet Qubits A team from Delft University of Technology (TU Delft) recently demonstrated universal control of a quantum-dot-based system with four singlet-tri plet qubits, as re ported in Nature Nanotechnology ,  potentially advancing scalable quantum information  processing. Lieven Vandersy pen's Insight According to Lieven Vandersy pen , the study's senior author, "Our initial aim was to fine-tune and calibrate the exchange interactions among neighboring s pins within a 4x2 quantum dot arrya, each loaded with a single s pin," he shared with ...