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Search results for “Metrology”

355 results for "Metrology"

Seeing the quantum future... literally

Researchers from the University of Sydney have demonstrated a technique to predict and prevent the randomization of quantum systems, or decoherence, which destroys their useful quantum character. This achievement could help bring powerful quantum technology closer to reality.

SourceUniversity of Sydney·JournalNature Communications·DateJan 14, 2017

Optical clock technology tested in space for first time

Researchers successfully tested an optical clock in space, demonstrating its potential to improve GPS accuracy and enable global sensing applications. The compact frequency comb laser system operated smoothly under microgravity conditions, paving the way for future space-based precision clocks.

SourceOptica·JournalOptica·DateNov 17, 2016

Stable molecular state of photons and artificial atom discovered

Scientists have discovered a qualitatively new state of a superconducting artificial atom dressed with virtual photons, resolving a forty-year-old problem in atomic physics. The discovery provides a platform to investigate light-matter interaction at a fundamental level and may contribute to the development of quantum technologies.

NIST illuminates transfer of nanoscale motion through microscale machine

Researchers at NIST measured the transfer of motion through a microelectromechanical system at nanometer and microradian scales. The study found that play in the joint between links was crucial for the motion's precision, making these systems more reliable. However, adding electrical noise or atmospheric humidity degraded performance.

SourceNational Institute of Standards and Technology (NIST)·JournalMicrosystems & Nanoengineering·DateSep 12, 2016

Could optical clocks redefine the length of a second?

Optical atomic clocks have shown improved accuracy and stability compared to traditional microwave clocks, making them suitable for global timekeeping. By combining optical clocks with masers, researchers achieved a time error of less than 0.20 nanoseconds over 25 days.

SourceOptica·JournalOptica·DateMay 25, 2016

Entanglement becomes easier to measure

Researchers have developed a new method to detect entanglement in many-particle systems, overcoming the challenge of scaling exponentially with system size. This breakthrough allows for the quantification of entanglement in macroscopic objects and has applications in quantum metrology, simulations, and solid-state physics.

SourceUniversity of Innsbruck·JournalNature Physics·DateMar 21, 2016

'Quasiparticles' reveal incredibly minute distortions in light waves

Scientists have developed a method to detect the shape of light waves with unprecedented precision by studying the behavior of 'quasiparticles' - ripples in the electric field that emerge when light meets solid surfaces. This breakthrough has significant implications for applications in metrology, chemical sensing, and adaptive optics.

SourceOptica·JournalOptica·DateDec 8, 2015

Constant change

The determination of fundamental constants is becoming increasingly accurate, according to a review paper published this week. This will aid in the redefinition of standard scientific units, including the kilogram and the Kelvin, by 2018.

SourceAmerican Institute of Physics·JournalJournal of Physical and Chemical Reference Data·DateJul 14, 2015

How we became nature -- Anthropocene

The Anthropocene epoch is characterized by human impact on the environment, including climate disruption, overpopulation, and pollution. The authors present evidence of a new geological era where human activities determine the planet's behavior.

SourceDe Gruyter·JournalChemistry-Didactics-Ecology-Metrology·DateMar 17, 2015

Detecting defects at the nanoscale will profit solar panel production

Researchers at the University of Huddersfield have developed a new metrology system to detect tiny defects in thin films, crucial for printed electronics and solar panels. The NanoMend project aims to reduce cost and increase reliability of flexible PV cells, paving the way for wider adoption of renewable energy.

SourceUniversity of Huddersfield·JournalInternational Journal of Energy Optimization and Engineering·DateFeb 24, 2015

New NIST tools to help boost wireless channel frequencies and capacity

Researchers at NIST are developing measurement tools for channels that could offer more than 1,000 times the bandwidth of today's cell phone systems. The tools will enable the development of innovative millimeter-wave wireless technologies and support the expected increases in demand for wireless capacity.

SourceNational Institute of Standards and Technology (NIST)·JournalIEEE Transactions on Microwave Theory and Techniques·DateFeb 19, 2015

Building a more versatile frequency comb

A new frequency comb has been developed that can operate at higher powers and cover the 3-12 micron spectral range. This breakthrough is achieved through a quantum cascade laser-based solution, offering improved performance and potential applications in metrology, spectroscopy, and frequency synthesis.

SourceNorthwestern University·JournalApplied Physics Letters·DateFeb 16, 2015

Lord of the microrings

Scientists at Berkeley Lab have developed a unique microring laser cavity that can produce single-mode lasing even from conventional multi-mode laser cavities. This breakthrough holds implications for optical metrology, interferometry, data storage, spectroscopy, and communications.

Quantitative volumetric analysis of the optic radiation in the normal human brain

Researchers from Korea Research Institute of Standards and Science used diffusion tensor imaging to analyze the optic radiation in 13 healthy volunteers. The study found that the optic radiation fiber tract volume was approximately 0.16% and fractional anisotropy value was about 0.53, enabling accurate detection of probability pathways.

SourceNeural Regeneration Research·JournalNeural Regeneration Research·DateAug 4, 2014

Ultra-cold atom transport made simple

Researchers developed a filtering device for ultra-cold neutral atoms based on tunnelling, enabling efficient and robust transport. The technique can be applied to various high-precision applications like quantum metrology and quantum simulation.

SourceSpringer·JournalThe European Physical Journal D·DateJul 7, 2014

Squeeze and you shall measure -- squeezed coherent states shown to be optimal for gravitational wave

Physicists at the University of Warsaw and Hanover demonstrate that experimentally available squeezed states are optimal for improving the precision of measurements in gravitational wave detectors. This breakthrough improves sensitivity by up to 30%, allowing for more accurate detection of subtle spacetime vibrations.

SourceUniversity of Warsaw, Faculty of Physics·JournalPhysical Review A·DateNov 13, 2013

Topological light: Living on the edge

Researchers at Joint Quantum Institute report direct observation of topological effects for light in two dimensions, creating ultrastable quantum 'playgrounds.' Photonic edge states exhibit persistent flow and near immunity against defects, similar to quantum Hall effect for electrons.

SourceJoint Quantum Institute·JournalNature Photonics·DateOct 20, 2013

Graphene with aroma

Researchers have developed a new production method for graphene that uses aromatic molecules, enabling the creation of flexible graphene structures with specific functionality. The method allows for the manufacture of quantum dots, nanoribbons, and other nano-geometries with unique properties.

SourcePhysikalisch-Technische Bundesanstalt (PTB)·JournalAdvanced Materials·DateOct 2, 2013

Quantum algorithm breakthrough

Researchers at the University of Bristol successfully implemented a full quantum circuit to calculate unknown eigenvalues using a quantum algorithm without prior knowledge. This achievement marks an important step towards practical quantum computing, enabling applications in quantum simulations and metrology.

SourceUniversity of Bristol·JournalNature Photonics·DateFeb 24, 2013