Researchers from China and Hong Kong have broken the limit of multi-parameter quantum measurement without sacrificing precision. By relating simultaneous multi-parameter estimation to Heisenberg uncertainty relations, they achieved a 13.27 dB improvement over the shot-noise limit.
Researchers at USTC achieve experimental verification of distribution quantum phase estimation, surpassing classical limits in metrology. They demonstrate enhanced sensitivity in measuring multiple parameters simultaneously with high precision.
NIST researchers use atomic force microscopy with a nanocylinder tip to measure polymer curing rates and diffusion in 3D printing. The study reveals that controlling light exposure conditions is crucial to uniform part production.
Researchers developed an all-optical attosecond few slit interferometer to measure ultrafast processes in the time-energy domain. The technique uses laser-driven high order harmonics and introduces a perturbing field to alter harmonic generation, enabling wave-front controlled attosecond interferometry with precise energy resolution.
Scientists at the University of São Paulo have developed a method to generate intense beams of light with quantum correlations, which can be used for high-precision metrology and information encoding. The new technology has potential applications in fields such as gravity wave detection and secure communication.
Researchers have successfully connected two optical atomic clocks in Italy and Japan, separated by 8700 km, using radio telescopes observing distant stars. This achievement could provide a global infrastructure for high-precision timekeeping and unlock new possibilities for studying fundamental physics and general relativity.
Researchers at USC Viterbi have discovered a new kind of dynamic light structure that can rotate around its center and revolve around another axis. This innovation has potential applications in sensing, imaging, manufacturing, and metrology, offering tailored light with novel dynamic motion.
Scientists have found that quantum particles can carry unlimited information about interacted objects, enabling precise measurements. Researchers developed a new technique using quasi-probabilities to improve metrology, leading to potential breakthroughs in super-precise microscopes and quantum computers.
Scientists at the University of Huddersfield and the Zepler Institute will create ultra-accurate nanoscale sensors, enabling automated production lines to detect and correct errors in situ. This project aims to accelerate Industry 4.0 development by delivering greater efficiency and cost savings.
Researchers from USTC obtained the ultimate precision for estimating all three components of a magnetic field with entangled probe states under the parallel scheme. They found that tradeoff comes from incompatibility of optimal probe states and presented an approach to quantify tradeoff.
Researchers developed an on-chip plasmonic spin-Hall nanograting to detect both phase and polarization singularities of incident beams. The structure directionally couples different positions depending on the polarization and topological charge of the beam, enabling rapid detection with high resolution.
Researchers at Harvard University have successfully generated frequency combs using turbulence in light, contradicting current laser theory. The discovery could lead to more efficient and compact devices for applications such as telecommunications and portable sensing.
Researchers developed an advanced quantum algorithm for measuring physical quantities using simple optical tools, exceeding the shot noise limit and achieving Heisenberg-limited sensitivity. This breakthrough enables affordable and effective platforms for moderate-scale quantum measurements and computations.
Scientists have developed a new type of laser that can deliver high amounts of energy in very short bursts, making it ideal for corneal surgery. The research uses quartic solitons to produce short, powerful light pulses without heating and damaging the surface.
EPFL researchers have successfully generated high-speed microwave signals using integrated soliton microcombs. The breakthrough enables the miniaturization of photonic systems, paving the way for applications in metrology, spectroscopy, communications, radars, and the Internet of Things.
Researchers at the University of Arizona are using quantum entanglement to detect radio frequencies with unprecedented sensitivity and accuracy. By combining RF photonics sensing and quantum metrology, they've created a technology that can improve GPS systems, astronomy labs, and biomedical imaging capabilities.
Researchers at USTC enhance quantum orienteering using entangling measurements via photonic quantum walks, achieving unprecedented efficiency. The method demonstrates a nonclassical phenomenon due to entanglement in quantum measurements, offering an effective recipe for realizing entangling measurements.
New waveguide platforms enable compact solutions for ultra-high-performance systems, moving key components to chip scale from large tabletop instruments. These platforms support a range of applications, including spectroscopy, precision metrology, and computation.
Researchers successfully measured the full quantum geometric tensor in a solid-state spin system using coupled qubits in diamond. The technique enables precise measurement of the tensor's matrix elements, including Berry curvature and Riemannian metric.
A research group at FAU is investigating the causes and consequences of manufacturing deviations, focusing on gear wheels and other complex machines. The project aims to develop methods and tools for reliable tolerance management, improving product function and lifespan.
Researchers at NIST have developed methods to measure the efficiency of five single-photon detectors, which are used in various applications such as optical communications and astrophysics. The study provides a tool for verifying future detection standards and aims to improve accuracy and reliability in these devices.
Researchers develop a new industrial laser system to study cold atom dynamics in space. By doubling the frequencies of widely used telecommunications lasers, their design enables accurate measurements of subtle variations in the Earth's gravitational field.
Scientists explore how dark matter influences antimatter, searching for clues that could link the two aspects of the universe. They use captured antiprotons to detect changes in spin precession frequency, which could indicate dark matter's presence.
A team of LSU researchers has successfully demonstrated a method to generate groups of photons with manipulable quantum properties, known as multiphoton states. By subtracting out some photons, they can reshape the form of the wavepacket and artificially increase the number of photons in it.
Researchers developed a new laser-based system that uses speckle pattern analysis to detect fires in harsh environments. The system achieved an accuracy of 91 percent in tests at a waste plant in Denmark, offering a promising solution for fire detection in industrial settings.
Researchers at Purdue University have successfully created a quantum spin wave for light that only flows in one direction. This breakthrough has significant implications for future nanotechnologies, enabling information to be transmitted securely and efficiently.
Phelcom's Eyer uses a portable optical device connected to a smartphone to capture images of the retina for remote diagnosis. The app sends images over the internet to Eyer Cloud, which stores and manages patient files. With an accuracy rate of around 80%, the system has the potential to examine 50,000 patients next year.
Researchers have successfully prepared a remote quantum state in the microwave regime, enabling secure communication. This breakthrough has the potential to transform the field of quantum cryptography and ultra-accurate quantum metrology.
Researchers from Harvard and Stanford have developed an integrated, on-chip frequency comb that is efficient, stable and highly controllable with microwaves. This breakthrough enables the creation of compact light sources for optical communication in data centers, facilitating fast and accurate data exchange.
A collection of articles from leading researchers worldwide provides an unprecedented view of the global quantum technology landscape. The articles discuss the history of supporting research in quantum technology, the timing of heavy investment, and future outlooks for each region.
Researchers at the University of Huddersfield have made a groundbreaking discovery in decomposition theory, which will enable greater accuracy in the manufacture of complex products. The breakthrough is expected to offer more functionality and significantly lower costs for advanced manufacturers.
Scientists have developed a method to directly write quantum light sources into monolayer semiconductors, enabling precise placement and real-time design of arbitrary patterns of single photon emitters. This breakthrough paves the way for emerging applications in secure communications, sensing, and quantum computation.
The TOCHA project aims to develop novel topological photonic/phononic waveguides and heterostructures to enhance information transfer and metrology. It will advance the handling and transport of quantum information with enhanced precision demands.
Researchers from INRS and University of Sussex create an AI-optimized photonic chip to customize the properties of broadband light sources, also known as supercontinuum. This innovation enables new imaging technologies and fundamental research into light-matter interactions.
A revised roadmap outlines the current status of quantum technology, examining its challenges and goals. The roadmap identifies key areas of focus, including quantum communication, computing, simulation, metrology, and control.
Researchers at Los Alamos National Laboratory have developed carbon nanotube optics for optical-based quantum cryptography and quantum computing. The team's work involves integrating nanotubes into photonic cavities to manipulate light-emission properties and creating single-photon emitters for quantum info-processing.
Physicists at NIST have performed the most accurate test of Einstein's general relativity theory using remote atomic clocks. The experiment confirmed that measurements of nongravitational effects are independent of time and place, with a result consistent with predicted values.
Detailed micro-CT scans reveal a 2,100-year-old Egyptian mummy was actually a near-to-term, severely malformed fetus with anencephaly. The finding provides clues to maternal diet and raises questions about mummification practices.
Two new Collaborative Research Centers at Charité will investigate the use of diagnostic imaging technology to visualize pathological changes in the extracellular matrix. This research may contribute to the early detection of diseases and improve therapy monitoring. The centers aim to uncover new insights into memory consolidation and ...
The Last Artifact documentary follows scientists as they seek to establish a new definition for the kilogram, with implications for modern life. The film showcases the history of the current standard and the challenges of updating it.
Researchers at the University of the Basque Country and University of Hannover achieved quantum entanglement between two spatially separated Bose-Einstein condensates. This breakthrough could lead to significant improvements in fields like quantum computing, simulation, and metrology by creating large ensembles of entangled particles.
Researchers at the University of Oklahoma are developing quantum-enhanced plasmonic sensors that can detect biosamples, monitor atmospheric conditions, and analyze chemicals with enhanced sensitivity. The new technology has the potential to revolutionize fields like metrology and chemical detection.
Researchers developed MAGESTIC to refine gene-editing process, enhancing precision and increasing cell survival rates by sevenfold. The new platform enables precise editing of genetic variants, helping uncover impact on cellular function and disease susceptibility.
Scientists at NIST and partners developed a miniaturized device that generates precise frequencies of light, tracing back to an international measurement standard. The breakthrough reduces the size of optical frequency synthesizers from tabletop instruments to three silicon chips.
Researchers at KIT and EPFL developed a new type of chip-scale light source generating optical frequency combs in silicon nitride microresonators. This enables highly precise distance measurement at speeds of up to 100 million measurements per second, paving the way for real-time 3D cameras and compact LIDAR systems.
A collaborative team from Washington University in St. Louis conducted field studies in Raipur, India, to quantify the true scope of particulate emissions from cookstoves. They found that emissions were higher than previously estimated, with some cases exceeding twice the levels detected in laboratory experiments.
Researchers at NIST develop a new approach to testing multilayered, three-dimensional computer chips using microwaves. This method provides real-time insight into material performance and defects, potentially reducing electromigration issues and improving chip stability.
A £200,000 research project aims to enhance ballistics evidence with similar scientific accuracy as DNA analysis. The LOQUITUR project will develop software to measure minute surface details on ammunition and weapons, enabling more accurate matches and improving forensic analysis.
Physicists at the University of Queensland developed a new technique to reduce errors in atom measurement devices, boosting precision by exploiting quantum entanglement. This improvement enables more flexible design and operation of these quantum sensors, potentially moving experimental physics into real-world applications.
Researchers at the National University of Singapore have developed a super-resolution imaging technique that doubles the odds of successful photon interaction with atoms. This innovation has significant implications for quantum computing and metrology, as it enables stronger interactions between photons and atoms.
Physicists measure magnetic force of antiprotons with record precision, but data reveals no difference between protons and antiprotons, confirming CPT symmetry. The BASE collaboration aims to use even higher precision measurements to find the source of matter-antimatter asymmetry.
Researchers at the University of Vienna developed a quantum ruler for biomolecules using a novel arrangement of nanogratings and laser beams. The technique allows for precise measurement of molecular electronic properties, such as those of vitamins A, E, and K1, with high accuracy.
Researchers have produced single-photon emitters at room temperature using carbon nanotubes, enabling optically-based quantum information processing. The emitters can be tuned to telecommunications wavelengths, making them suitable for ultrasensitive sensing, metrology, and imaging applications.
Researchers from PTB and JILA develop a laser with an unprecedented 10 mHz linewidth, setting a new world record. The precision of the laser allows for accurate measurements in optical atomic clocks and spectroscopy.
American scientists have developed a new method to measure electric fields using atomic resonance-based technology, allowing for accurate and traceable measurements. This technique has improved spatial resolution and can measure frequencies up to one terahertz, relevant for future wireless mobile telecommunication systems.
Researchers developed a technique called entanglement distillation to enhance quantum entanglement, confirming its effectiveness across two meters. The approach accounts for interactions between particles and environment, enhancing the connection by iterating on raw states.
A team of researchers has developed a method to completely characterize the evolution of weak electric fields in light pulses. This allows for the measurement of electric field characteristics such as direction, duration, and intensity.
NIST physicists have solved the puzzle of controlling molecular ions using quantum logic, a technique that also drives an experimental atomic clock. The new method achieves effective control of molecules as laser cooling and other techniques can control atoms.
A team of researchers from the National Institute of Standards and Technology (NIST) has discovered at least 47 possible start codons in DNA, which can trigger protein synthesis. This finding challenges the long-held assumption that only a small number of three-letter sequences in mRNA could initiate translation.
Researchers at FAU Erlangen-Nürnberg have developed a new sheet bulk metal forming process that combines two manufacturing methods to create complex functional components with wider applications. The project aims to improve the surface contact, reduce tool wear, and enable batch production for industry partners.