/ en-us Â鶹ÒùÔº internet news portal provides the latest news on science including: Â鶹ÒùÔºics, Nanotechnology, Life Sciences, Space Science, Earth Science, Environment, Health and Medicine. While quantum computers are already being used for research in chemistry, material science, and data security, most are still too small to be useful for large-scale applications. A study led by researchers at the University of California, Riverside, now shows how "scalable" quantum architectures—systems made up of many small chips working together as one powerful unit—can be made. /news/2025-08-larger-reliable-quantum-imperfect-links.html Quantum Â鶹ÒùÔºics Mon, 25 Aug 2025 16:40:04 EDT news675358802 The simulation of quantum systems and the development of systems that can perform computations leveraging quantum mechanical effects rely on the ability to arrange atoms in specific patterns with high levels of precision. To arrange atoms in ordered patterns known as arrays, physicists typically use optical tweezers, highly focused laser beams that can trap particles. /news/2025-08-ai-technique-defect-free-arrays.html Quantum Â鶹ÒùÔºics Mon, 25 Aug 2025 12:56:49 EDT news675345403 Organic chemistry, the chemistry of carbon compounds, is the basis of all life on Earth. However, metals also play a key role in many biochemical processes. When it comes to "marrying" large, heavy metal atoms with light organic compounds, nature often relies on a specific group of chemical structures: porphyrins. These molecules form an organic ring; in its center, individual metal ions such as iron, cobalt, or magnesium can be "anchored." /news/2025-08-zigzag-graphene-nanoribbons-configuration-tomorrow.html Nanophysics Nanomaterials Fri, 22 Aug 2025 12:50:01 EDT news675085301 Researchers at the University of Innsbruck have created a system in which individual qubits—stored in trapped calcium ions—are each entangled with separate photons. Demonstrating this method for a register of up to 10 qubits, the team has shown an easily scalable approach that opens new possibilities for linking quantum computers and quantum sensors. /news/2025-08-calcium-ions-entangled-photons-scalable.html Optics & Photonics Quantum Â鶹ÒùÔºics Fri, 22 Aug 2025 11:15:21 EDT news675080109 To build a large-scale quantum computer that works, scientists and engineers need to overcome the spontaneous errors that quantum bits, or qubits, create as they operate. /news/2025-08-rosetta-stone-code-scientists-core.html Quantum Â鶹ÒùÔºics Thu, 21 Aug 2025 05:00:05 EDT news674908021 Establishing robust isolated spins on solid surfaces is crucial for fabricating quantum bits or qubits, sensors, and single-atom catalysts. An isolated spin is a single spin that is shielded from external interactions. Because isolated spins can maintain their state for long periods, they are ideal for use as qubits, the basic units of quantum computation, and for ultrafast spintronic memory. /news/2025-08-robust-isolated-quantum-magnetic-substrate.html Nanophysics Nanomaterials Wed, 20 Aug 2025 15:29:52 EDT news674922588 There are high hopes for quantum computers: they are supposed to perform specific calculations much faster than current supercomputers and, therefore, solve scientific and practical problems that are insurmountable for ordinary computers. The centerpiece of a quantum computer is the quantum bit, qubit for short, which can be realized in different ways—for instance, using the energy levels of atoms or the spins of electrons. /news/2025-08-smart-qubits-orbit-approach-boosts.html Quantum Â鶹ÒùÔºics Mon, 18 Aug 2025 11:19:04 EDT news674734741 Researchers at NPL have reported a novel high-speed charge sensing method for ballistic electrons, a potentially useful technique in the fields of electron quantum optics, quantum electrical metrology, flying qubit technology, and signal sensing. /news/2025-08-ballistic-electrons-high-method-tracks.html Quantum Â鶹ÒùÔºics Mon, 18 Aug 2025 10:06:08 EDT news674730362 The reliable engineering of quantum states, particularly those involving several particles, is central to the development of various quantum technologies, including quantum computers, sensors and communication systems. These collective quantum states include so-called Dicke and Greenberger-Horne-Zeilinger (GHZ) states, multipartite entangled states that can be leveraged to collect precise measurements, to correct errors made by quantum computers and to enable communication between remote devices leveraging quantum mechanical effects. /news/2025-08-grover-algorithm-efficiently-quantum-states.html Quantum Â鶹ÒùÔºics Fri, 15 Aug 2025 07:30:02 EDT news674389561 While conventional computers store information in the form of bits, fundamental pieces of logic that take a value of either 0 or 1, quantum computers are based on qubits. These can have a state that is simultaneously both 0 and 1. This odd property, a quirk of quantum physics known as superposition, lies at the heart of quantum computing's promise to ultimately solve problems that are intractable for classical computers. /news/2025-08-quantum-longer.html Quantum Â鶹ÒùÔºics Wed, 13 Aug 2025 12:59:56 EDT news674308789 Quantum computers have the potential to solve problems far beyond the reach of today's fastest supercomputers. But today's machines are notoriously fragile. The quantum bits, or "qubits," that store and process information are easily disrupted by their environment, leading to errors that quickly accumulate. /news/2025-08-discarded-particles-dubbed-neglectons-universal.html Quantum Â鶹ÒùÔºics Tue, 05 Aug 2025 05:00:03 EDT news673519082 In the race toward practical quantum computers and networks, photons—fundamental particles of light—hold intriguing possibilities as fast carriers of information at room temperature. /news/2025-07-metasurfaces-quantum-processors.html Quantum Â鶹ÒùÔºics Thu, 24 Jul 2025 15:17:38 EDT news672589049 In a breakthrough for antimatter research, the BASE collaboration at CERN has kept an antiproton—the antimatter counterpart of a proton—oscillating smoothly between two different quantum states for almost a minute while trapped. The achievement, reported in a paper published today in the journal Nature, marks the first demonstration of an antimatter quantum bit, or qubit, and paves the way for substantially improved comparisons between the behavior of matter and antimatter. /news/2025-07-antimatter-quantum-bit-paves-comparisons.html Quantum Â鶹ÒùÔºics Wed, 23 Jul 2025 12:21:37 EDT news672492040 Quantum computers have the potential to revolutionize computing by solving complex problems that stump even today's fastest machines. Scientists are exploring whether quantum computers could one day help streamline global supply chains, create ultra-secure encryption to protect sensitive data against even the most powerful cyberattacks, or even develop more effective drugs by simulating their behavior at the atomic level. /news/2025-07-efficient-route-quantum.html Quantum Â鶹ÒùÔºics Wed, 09 Jul 2025 10:40:04 EDT news671276401 Quantum technologies, systems that operate leveraging quantum mechanical effects, have the potential to outperform classical technologies in some specific tasks. Over the past decades, some researchers have also been trying to realize quantum networks, systems comprised of multiple connected quantum devices. /news/2025-07-approach-heralded-photon-storage-rydberg.html Optics & Photonics Quantum Â鶹ÒùÔºics Mon, 07 Jul 2025 09:10:06 EDT news671097968 Blink and you might miss it, but if you keep your eye on the monitors in professor Sebastian Will's lab, you'll catch a series of single-second flashes that light up the screen. Each flash is an atom of strontium, a naturally occurring alkaline-earth metal, being briefly captured and held in place by "tweezers" made of laser light. "We can see single atoms," says graduate student Aaron Holman. "Seeing those never gets old." /news/2025-06-discusses-atoms-emerging-quantum-technologies.html Quantum Â鶹ÒùÔºics Thu, 26 Jun 2025 09:50:03 EDT news670148871 Developing technology that allows quantum information to be both stable and accessible is a critical challenge in the development of useful quantum computers that operate at scale. Research published in the journal Nature provides a pathway for scaling the number of quantum transistors (known as qubits) on a chip from current numbers under 100 to the millions needed to make quantum computation a practical reality. The result is enabled by new cryogenic control electronics that operate at close to absolute zero, developed at the University of Sydney. /news/2025-06-qubits-absolute-path-scalable-quantum.html Quantum Â鶹ÒùÔºics Wed, 25 Jun 2025 15:54:04 EDT news670085641 Scientists across the world are working to make quantum technologies viable at scale—an achievement that requires a reliable way to generate qubits, or quantum bits, which are the fundamental units of information in quantum computing. /news/2025-06-defects-2d-material-quantum-bits.html Condensed Matter Quantum Â鶹ÒùÔºics Mon, 23 Jun 2025 14:51:04 EDT news669909061 For decades, quantum computers that perform calculations millions of times faster than conventional computers have remained a tantalizing yet distant goal. However, a new breakthrough in quantum physics may have just sped up the timeline. /news/2025-06-magically-errors-quantum-technique-decrease.html Quantum Â鶹ÒùÔºics Fri, 20 Jun 2025 10:51:44 EDT news669635416 Research at the Quantum Systems Accelerator has been steadily breaking new ground, quickening the pace toward flexible, stable quantum computers with capabilities well beyond those of today's classical machines. /news/2025-06-ion-advances-ground-quantum.html Quantum Â鶹ÒùÔºics Thu, 12 Jun 2025 15:33:05 EDT news668961181 Recent technological advances have opened new exciting possibilities for the development of cutting-edge quantum devices, including quantum random access memory (QRAM) systems. These are memory architectures specifically meant to be integrated inside quantum computers, which can simultaneously retrieve data from multiple 'locations' leveraging a quantum effect known as coherent superposition. /news/2025-06-quantum-random-access-memory-based.html Quantum Â鶹ÒùÔºics Thu, 12 Jun 2025 10:19:23 EDT news668942346 Researchers have determined how to use magnons—collective vibrations of the magnetic spins of atoms—for next-generation information technologies, including quantum technologies with magnetic systems. /news/2025-06-harnessing-magnons-quantum.html Condensed Matter Quantum Â鶹ÒùÔºics Thu, 12 Jun 2025 08:59:38 EDT news668937572 Â鶹ÒùÔºicists at the University of Oxford have set a new global benchmark for the accuracy of controlling a single quantum bit, achieving the lowest-ever error rate for a quantum logic operation—just 0.000015%, or one error in 6.7 million operations. This record-breaking result represents nearly an order of magnitude improvement over the previous benchmark, set by the same research group a decade ago. /news/2025-06-physicists-world-qubit-accuracy.html Quantum Â鶹ÒùÔºics Mon, 09 Jun 2025 15:44:56 EDT news668702690 Scientists at University College Cork (UCC) in Ireland have developed a powerful new tool for finding the next generation of materials needed for large-scale, fault-tolerant quantum computing. /news/2025-05-quantum-visualization-technique-ute-intrinsic.html Superconductivity Quantum Â鶹ÒùÔºics Thu, 29 May 2025 14:00:03 EDT news667660321 In the world of quantum computing, the Hilbert space dimension—the measure of the number of quantum states that a quantum computer can access—is a prized possession. Having a larger Hilbert space allows for more complex quantum operations and plays a crucial role in enabling quantum error correction (QEC), essential for protecting quantum information from noise and errors. /news/2025-05-successful-quantum-error-qudits.html Quantum Â鶹ÒùÔºics Sun, 18 May 2025 12:00:01 EDT news666625151 When a molecule absorbs light, it undergoes a whirlwind of quantum-mechanical transformations. Electrons jump between energy levels, atoms vibrate, and chemical bonds shift—all within millionths of a billionth of a second. /news/2025-05-australian-quantum-simulate-real-molecules.html Quantum Â鶹ÒùÔºics Sat, 17 May 2025 10:50:01 EDT news666608803 In the rapidly evolving field of quantum computing, silicon spin qubits are emerging as a leading candidate for building scalable, fault-tolerant quantum computers. /news/2025-05-silicon-qubits-gain-ground-candidate.html Quantum Â鶹ÒùÔºics Mon, 12 May 2025 14:23:38 EDT news666278614 A team of researchers has developed a technique that makes high-dimensional quantum information encoded in light more practical and reliable. /news/2025-05-universe-awkward-handshake-high-dimensional.html Optics & Photonics Quantum Â鶹ÒùÔºics Fri, 09 May 2025 11:35:03 EDT news666009301 The operation of quantum technologies relies on the reliable realization and control of quantum states, particularly entanglement. In the context of quantum physics, entanglement entails a connection between particles, whereby measuring one determines the result of measuring the other even when they are distant from each other, and in a way that defies any intuitive explanation. /news/2025-05-scalable-approach-distill-quantum-features.html Quantum Â鶹ÒùÔºics Thu, 08 May 2025 06:30:01 EDT news665833308 Researchers at the University of Rochester and Rochester Institute of Technology recently connected their campuses with an experimental quantum communications network using two optical fibers. In a new paper published in Optica Quantum, scientists describe the Rochester Quantum Network (RoQNET), which uses single photons to transmit information about 11 miles along fiber-optic lines at room temperature using optical wavelengths. /news/2025-05-photon-technology-powers-mile-quantum.html Optics & Photonics Quantum Â鶹ÒùÔºics Tue, 06 May 2025 11:39:03 EDT news665750341