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Quantum

All articles tagged with #quantum

technology19 days ago•15 min saved

Google Urges Swift Post-Quantum Security Upgrades Amid Quantum Threats

Alphabet's Google warns that future quantum computers could crack today's encryption, urging governments and major industries to accelerate post-quantum security work. The company emphasizes crypto agility and ongoing updates, cites NIST's post-quantum standards, and notes that attackers may harvest data now to decrypt later. Google has tested quantum-safe methods in Chrome and argues cloud-based updates can speed the transition, while markets reacted to the news and analysts see potential upside from stronger security infrastructure.

via TipRanks|

#cybersecurity #encryption #google

science22 days ago•3 min saved

Sodium Nanoparticle Demonstrates Quantum-Wave Behavior at Unprecedented Scale

Researchers cooled and sent a sodium cluster about 8 nm in diameter (≈170,000 amu) through an interferometer to reveal wave-like interference, marking the largest object observed in quantum superposition and showing quantum mechanics applies to sizeable nanoparticles despite decoherence in larger systems.

via ScienceAlert|

#decoherence #interferometer #nanoparticles

technology1 month ago•12 min saved

Masers Rise Again: From Microwave Marvel to Room-Temperature Quantum Possibility

Masers are the microwave cousins of lasers that power cryogenic amplifiers for deep-space signals, provide precise timekeeping with hydrogen and cesium clocks, and appear in natural astrophysical sources; advances in new materials could enable room-temperature masers and even chip-scale devices for quantum computing, signaling a potential revival beyond their historical role.

via Hackaday|

#maser #microwave #physics

science1 month ago•34 min saved

Quantum interference observed in sodium nanoclusters at 0.17 MDa

Researchers demonstrate quantum interference of sodium clusters containing thousands of atoms (mass >170 kDa) in a near-field Talbot–Lau interferometer using three UV gratings, achieving fringe visibilities that align with quantum predictions and yielding a macroscopicity value of μ = 15.5—the highest reported to date. This shows the quantum superposition principle persists at this unprecedented mass/size and provides a platform to test macrorealist modifications of quantum mechanics, with future work aiming to reach even larger masses (MDa range) as experimental techniques improve.

via Nature|

#interferometry #macroscopicity #matter-wave

business5 months ago•2 min saved

UK-US Tech and Nuclear Deals Highlight Strategic Partnerships

Microsoft, Google, and Nvidia are leading a $39 billion tech deal between the UK and US focused on advancing AI and quantum computing technologies.

via TipRanks|

#ai #business #google

science6 months ago•4 min saved

Scientists Develop Biological Qubits Using Proteins and Cells

Researchers at UChicago have engineered protein qubits within living cells, enabling quantum sensing directly in biological systems, which could revolutionize nanoscale MRI and biological research by allowing direct measurement of quantum properties in living tissues and molecules.

via Phys.org|

#biology #biotechnology #protein-qubits

technology7 months ago•4 min saved

Miniature laser enhances autonomous vehicle vision

Researchers have developed a compact, penny-sized laser that can significantly improve lidar technology for autonomous vehicles by providing faster, more accurate measurements, potentially leading to better navigation and smaller sensor packages.

via Live Science|

#autonomous-vehicles #laser #lidar

science8 months ago•2 min saved

Quantum Technologies Enable Unbreakable and Truly Random Number Generation

Researchers at the University of Colorado have developed a quantum-based random number generator that is highly resistant to tampering, using entangled photons and a publicly available hash chain to verify the randomness, significantly increasing security against potential spoofing.

via theregister.com|

#entanglement #hash-chain #quantum

physics1 year ago•7 min saved

"Unveiling the Enigmatic Wigner Crystal: Electron Visualization Breakthrough"

Physicists at Princeton University have successfully visualized the Wigner crystal, a crystal made entirely of electrons, for the first time using a scanning tunneling microscope. This breakthrough confirms a 90-year-old theory proposed by Eugene Wigner and could lead to the discovery of new quantum phases of matter. The researchers used pristine graphene and low temperatures to directly image the crystal, observing its triangular configuration and its ability to transition into an electron liquid phase. They also discovered the quantum nature of the crystal, including the "zero-point" motion of electrons, and are now investigating how the crystal melts and transitions into other exotic liquid phases.

via Phys.org|

#electrons #physics #princeton-university

physics2 years ago•6 min saved

"Harnessing Quantum Dark States for Superior Noise Reduction"

Physicists have discovered a method to create highly entangled spin-squeezed states in multilevel atoms by harnessing superradiance inside an optical cavity, leading to the generation of dark states that are immune to superradiance and emit light at a much slower pace. This breakthrough could significantly enhance the precision of atomic clocks and quantum metrology, offering opportunities for quantum-enhanced measurements and potential applications in noise reduction.

via Phys.org|

#atomic-clocks #dark-states #noise-reduction

technology2 years ago•2 min saved

Vizio Unveils Affordable Quantum Pro Smart TVs with Bright 4K QLED Display

Vizio has unveiled its new Quantum and Quantum Pro Smart TVs, offering good picture quality at affordable prices starting at $499. The Quantum models promise accurate color and contrast from various viewing angles, with a base 60FPS at 4K and 120FPS at 1080p. These QLED screens feature Dolby Vision Bright+ and other tuning features to reduce light bleed. The Pro version caters to gamers with silky-smooth framerates, supporting variable refresh rates up to 240Hz at FHD. The regular Quantum starts at $499 for the 65-inch screen, while the Pro version ranges from $699 to $999.

via Gizmodo|

#budget-friendly #picture-quality #quantum

physics2 years ago•6 min saved

"ATLAS Experiment Uncovers Quantum Proton Billiards' Strong Interaction Secrets"

The ATLAS experiment at the LHC accelerator has measured the fundamental properties of strong interactions between protons at ultra-high energies by studying elastic scattering in proton-proton collisions. By analyzing the distribution of the scattering angle, the researchers were able to draw conclusions about the spatial structure of the colliding particles and the properties of their interactions. The measurements were made possible by using a dedicated measurement system and a special magnet configuration to minimize angular divergence. The results provide insights into the total cross-section and the interference between strong nuclear and Coulomb interactions, challenging pre-LHC theoretical models and advancing our understanding of fundamental particle interactions.

via Phys.org|

#atlas-experiment #elastic-scattering #physics

science2 years ago•3 min saved

Scientists Discover New State of Matter Using Quantum Frustration

Physicists have discovered a new phase of matter called the "chiral bose-liquid state" by engineering a "frustration machine" that creates a semiconductor device. The device works by stacking an upper semiconducting layer through which electrons are able to freely move, and a lower layer with holes that electrons occasionally move into. The resulting frustration produces the novel chiral edge state, which produces several unique characteristics. The discovery could have applications that include more secure and reliable methods for encoding digital information.

via The Debrief|

#chiral-bose-liquid #matter #physics

science2 years ago•5 min saved

World's First X-Ray of a Single Atom Unveiled in Nature

Scientists from Ohio University, Argonne National Laboratory, and the University of Illinois-Chicago have taken the world's first X-ray signature of a single atom using synchrotron X-ray scanning tunneling microscopy. The team used a specialized detector made of a sharp metal tip positioned at extreme proximity to the sample to collect X-ray excited electrons. The technique could revolutionize research and give birth to new technologies in areas such as quantum information and the detection of trace elements in environmental and medical research.

via EurekAlert|

#nanoscale #quantum #science