A team of chemists has uncovered new ways in which frozen water responds to changes in temperature to produce novel formations. Its findings have implications for climate research as well as other processes that involve ice formation—from food preserva…
LIGO–Virgo collaboration and dozens of telescopes see gravitational waves and gamma rays from stupendous event, triggering new era in “multi-messenger astronomy”
The next time you come across a knotted jumble of rope or wire or yarn, ponder this: The natural tendency for things to tangle may help explain the three-dimensional nature of the universe and how it formed.
Author(s): Maura McLaughlinFor the first time, researchers have detected both light and gravitational waves from the same event in space.[Physics 10, 114] Published Mon Oct 16, 2017
A proposed set of experiments could offer a direct measurement of the fundamental quantum property that distinguishes fermions from bosons.[Physics] Published Mon Oct 16, 2017
A new method that precisely measures the mysterious behavior and magnetic properties of electrons flowing across the surface of quantum materials could open a path to next-generation electronics.
Long-lived molecules could shed light on the hyperfine interaction
Researchers in China develop silicone fiber–based sensor that can measure extensions up to 100 percent, compatible with monitoring human-scale motions.
Today, the LHC is getting a taste of something unusual. For eight hours, the Large Hadron Collider is accelerating and colliding xenon nuclei, allowing the large LHC experiments, ATLAS, ALICE, CMS and LHCb, to record xenon collisions for the first time.
Scientists at the National Institute of Standards and Technology (NIST) have developed the first miniature laser in which the light is guided along the floor of an open metallic trench. The laser could act as a nanoscale device to sense minute amounts …
Quantum theory predicts that a vast number of atoms can be entangled and intertwined by a very strong quantum relationship, even in a macroscopic structure. Until now, however, experimental evidence has been mostly lacking, although recent advances hav…
How do chemical reactions proceed at extremely low temperatures? The answer requires the investigation of molecular samples that are cold, dense, and slow at the same time. Scientists around Dr. Martin Zeppenfeld from the Quantum Dynamics Division of P…
Author(s): Philip BallA theoretical model of light spreading and scattering improves precision of position and size measurements made with an optical microscope by as much as 100 times.[Physics 10, 113] Published Fri Oct 13, 2017
Researchers investigating whether liquid water could exist on Mars have provided new insight into the limits of life on the red planet.
By mimicking the eye of the mantis shrimp, Illinois researchers have developed an ultra-sensitive camera capable of sensing both color and polarization. The bioinspired imager can potentially improve early cancer detection and help provide a new unders…
Despite their name, rare earth elements actually aren’t that rare. Abundant in mines around the world, rare earths are used in many high-tech products, including visual displays, batteries, super conductors, and computer hard drives. But while they are…
Researchers have demonstrated the first laser cavity that can confine and propagate light in any shape imaginable, even pathways with sharp bends and angles. The new cavity, called a topological cavity, could enable laser components to be packed more d…
Researchers at Princeton University have detected a unique quantum property of an elusive particle notable for behaving simultaneously like matter and antimatter. The particle, known as the Majorana fermion, is prized by researchers for its potential t…
Odd phenomenon that hot water freezes faster than cold appears to be mirrored in granular media
The famous three-body problem can be traced back to Isaac Newton in 1680s. Studies on the three-body problem led to the discovery of the so-called sensitivity dependence of initial condition (SDIC) of chaotic dynamic systems. Today, chaotic dynamics ar…
Researchers have directed the motion of a domain-wall-like topological defect through a crystal of trapped ions.[Physics] Published Thu Oct 12, 2017
A group of scientists led by Prof. Zhang Qiang and Pan Jianwei from the University of Science and Technology of China (USTC) have successfully demonstrated entanglement swapping with two independent sources 12.5 km apart using 103 km optical fiber.
Harvard physicists Isaac Silvera and Ranga Dias claim they made metallic hydrogen, but other remain unconvinced. Jon Cartwright explores both sides of the argument
Choosing meaningful research topics at the start of a career is essential, say Philip G Judge, Isabel Lipartito and Roberto Casini, as they give their tips for the budding research scientist
Threats will be challenged by $9.4m laser beam demonstrator designed to fly on airborne platform.
Physicists monitor decay of carbon-12’s Hoyle state
Traditionally, heat engines produce heat from the exchange between high-temperature and low-temperature baths. Now, imagine a heat engine that operates at quantum scale, and a system made up of an atom interacting with light (photons) confined in a ref…
By deliberately interrupting the order of materials – by introducing different atoms in metal or nanoparticles in liquid crystals – we can induce new qualities. For example, metallic alloys like duralumin, which is composed of 95% of aluminium and 5% c…
Intracellular light-activated nanoparticles could be enlisted to improve antibiotics’ ability to kill drug-resistant bacteria.
Semiconductor equipment firms SwissLitho and EV Group continue collaboration initiated under European research project.
To advance self-driving car development – “lidar accuracy will play a critical role in deployment.”
Ask people to name the most famous historical woman of science and their answer will likely be: Madame Marie Curie. Push further and ask what she did, and they might say it was something related to radioactivity. (She actually discovered the radioisoto…
New design of synthetic cornea integrates artificial optics within resident ocular tissue.
A flexible, biodegradable optical fiber that can deliver light into the body for medical applications is the latest work of a collaboration between electrical engineers and biomaterials engineers in Penn State’s Materials Research Institute.
Robert Granetz has been a research scientist in MIT’s Plasma Science and Fusion Center for more than 40 years. He recently gave a talk hosted by the MIT Energy Initiative (MITEI) on using machine learning to develop a real-time warning system for impen…
Lithuanian laser diode maker gets into photonic integration for medical and industrial sensors.
The Large Hadron Collider at CERN in Switzerland, the largest accelerator in the world, has a circumference of around 26 kilometres. Researchers at Friedrich-Alexander Universität Erlangen-Nürnberg (FAU), Germany, are attempting to go to the other extr…
Physicist Richard Feynman once gave a lecture titled “There is plenty of room at the bottom.” This lecture is often quoted to highlight the successes of modern micro- and nano-fabrication techniques, and the value of available space that comes with adv…
George Shubeita describes his studies of the tiny motors that transport vital cargoes within biological cells.[Physics 10, 112] Published Wed Oct 11, 2017
In doing so, Eric Mazur’s team observed a physical phenomenon that is usually unobservable — a standing wave of light.
Even as the power of our modern computers grows exponentially, biological systems—like our brains—remain the ultimate learning machines. By finding materials that act in ways similar to the mechanisms that biology uses to retain and process information…
Over the last few years, researchers have demonstrated that light can serve as a spin-current generator, creating currents of angular momentum, in optical nanostructures known as plasmonic absorbers, opening up a new branch of spintronics called opto-s…
Water is everywhere. But it’s not the same everywhere. When frozen under extreme pressures and temperatures, ice takes on a range of complex crystalline structures.
Kelvin and Yanai waves share similarities with topological insulators
Continuous Electron Beam Accelerator Facility now runs at 12 GeV
Start date pushed back several months from initial plan, but officials confident of future impact.
California firm backed by Phoenix Venture Partners and ‘syndicate of leading ophthalmologists’.
Scientists in a research group led by Constantia Alexandrou, professor of physics at the University of Cyprus and the Cyprus Institute, made a crucial step towards solving a three-decades-old puzzle: They have successfully deciphered the total angular …
X-ray free-electron lasers have been used to generate single spikes of hard x rays that are only 200 attoseconds long.[Physics] Published Tue Oct 10, 2017
To enhance Skorpios’ heterogeneous integration process and manufacturing – for optical communications markets and more.
Researchers are a step closer to harnessing single pulses of light called solitons, using tiny ring-shaped microresonators, in findings that could aid efforts to develop advanced sensors, high-speed optical communications and research tools.
French companies merge operations, with a view to creating a major player in European photonics.
Packing a Fermi gas of strontium atoms into a dense 3-D optical lattice dramatically reduces atom–atom interactions—and increases clock precision by an order of magnitude.
Top quarks in the Large Hadron Collider (LHC) proton-proton collisions are predominantly produced in pairs, with one top quark and one top antiquark. In order to measure the production rates of top quark pairs, the ATLAS Experiment examined events with…
The Big Bang began the formation and organization of the matter that makes up ourselves and our world. Nearly 14 billion years later, nuclear physicists at the Department of Energy’s Oak Ridge National Laboratory (ORNL) and their partners are using Ame…
Author(s): Nick R. HutzlerNew precision experiments using trapped molecular ions provide an alternative method for determining if the electron has an electric dipole moment.[Physics 10, 111] Published Mon Oct 09, 2017
In a classical thermodynamic system, heat current flows from the hotter body to the colder one, or electricity from the higher voltage to the lower one. The same thing happens in quantum systems, but this state can be changed, and the flow of energy an…
Effect could be used to make better pharmaceuticals
Initial three-telescope array could be expanded to 15 interconnected facilities under ‘BlackGEM’ scheme.
A new ultralight silver nanowire aerogel could be a boost to the energy and electronics industries.
When you bang on a simple drumhead, it will most certainly make a noise, but you probably wouldn’t call that noise a musical note.
It was one of the breakthroughs of the year 2010: Laser spectroscopy of muonic hydrogen resulted in a value for the proton charge radius that was significantly smaller, by four standard deviations, than previous determinations using regular hydrogen. T…
Author(s): David LindleyThe first simultaneous detection of gravitational radiation by the LIGO and Virgo detectors greatly improves localization of the source and permits a novel test of general relativity.[Physics 10, 110] Published Fri Oct 06, 2017
Nuclear physicists are now poised to embark on a new journey of discovery into the fundamental building blocks of the nucleus of the atom. The completion of the 12 GeV Upgrade Project of the Continuous Electron Beam Accelerator Facility (CEBAF) at the …
University of Michigan researchers develop multi-dimensional spectroscopy technique to spot explosives, dangerous gases.
Ultra-bright pulses goes beyond conventional crystallography
Two-dimensional materials could underpin a novel family of flexible, low-power electronic devices, but their success depends on ensuring the layers are chemically stable. A*STAR researchers now show that one 2-D material, phosphorene, can be stabilized…
Efforts to rid the world of polio have taken another significant step, thanks to research led by University of Queensland bioscience experts and funding from the World Health Organisation (WHO).
Author(s): Bashirah Ibrahim, Lin Ding, Andrew F. Heckler, Daniel R. White, and Ryan Badeau
Mathematical complexity impedes introductory physics students’ ability to combine equations on synthesis problems.
[Phys. Rev. Phys. Educ. Res. 13, 020120] Published Thu Oct 05, 2017
Electric fields applied on either side of a thin, semiconducting transition-metal dichalcogenide create a superconducting layer atop a metallic layer within the material.[Physics] Published Thu Oct 05, 2017
Robert P Crease talks to Nathan Myhrvold – author of the new five-volume blockbuster Modernist Bread – about the science and history of our favourite foodstuff
Andrew Glester visits this year’s Edinburgh Festival Fringe and reviews three of the several science-themed shows at this year’s festival
Crystal Bailey urges today’s physics graduates to sharpen their skills – and their CVs – for careers in industry; while also calling on academic staff to provide students with more support in this area
University of Rochester researchers devise a setup for generating broadband terahertz radiation from liquid water excited by femtosecond laser pulses.
UAlberta researchers have created two new imaging agents that could help physicians visualize the formation of tumour-associated blood vessels, keep track of tumour growth and possibly generate new therapies.
Individual nanoscale nuggets of gold, copper, aluminum, silver and other metals that capture light’s energy and put it to work are being employed by Rice University scientists who have discovered a way to build multifunctional nanoscale structures.
LIGO pioneer also makes political point about evidence-based reasoning in highly entertaining press conference.
Technique revolutionized how biological molecules are imaged
Technique of cryo-EM could provide dramatically improved view of the structure and function of biomolecules.
German laser giant buys 85% stake in Seattle-based developer of high-precision carbon dioxide lasers.
Latest technology – for the LM 2100 orbiter – delivers 50% more power but is 30% lighter than previous space-dedicated arrays.
Author(s): William R. Evans and Mats A. SelenMastery-style homework is better than traditional-style homework for weaker introductory physics students.[Phys. Rev. Phys. Educ. Res. 13, 020119] Published Wed Oct 04, 2017
UK artist Paul Evans makes the hidden world of biological color-producing nanostructures visible with his butterfly-inspired art installation.[Physics 10, 109] Published Wed Oct 04, 2017
World’s optical fiber innovator and current largest manufacturer “plans to maintain its leading position”.
Integrated mid-IR and supercontinuum sources will find applications in medicine, climate science and mining.
Rainer Weiss, Kip Thorne and Barry Barish recognized for ‘truly remarkable’ achievement.
Trio is cited “for decisive contributions to the LIGO detector and the observation of gravitational waves.”
Single base-pair mismatches in DNA can be pinpointed by twisting the molecule until it buckles.[Physics] Published Tue Oct 03, 2017
Trio win for their work on gravitational waves
Northumbria University is key partner in Horizon 2020 “VisIoN” project on Visible Light Communications.
Did early supermassive objects get a boost from the early universe?
At the OSA Laser Congress in Japan, Robert Byer looked at the genesis of the lasers that form the heart of Advanced LIGO—and hinted at big finds ahead.
Netherlands-based Innovation Industries makes €4 million equity investment.
Flash Physics: need-to-know updates from the world of physics
Author(s): Lincoln D. Carr and Simon L. CornishThe creation of ultracold molecules that have both an electric and a magnetic dipole moment offers new ways to explore physics in the many-body quantum regime.[Physics 10, 107] Published Mon Oct 02, 2017
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Physics Today, Volume 70, Issue 10, Page 30-30, October 2017. <br/>