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  • New design principles for spin-based...
    on September 18, 2020 at 5:07 PM

    As our lives become increasingly intertwined with technology—whether supporting communication while working remotely or streaming our favorite show—so too does our reliance on the data these devices create. Data centers supporting these technology ecosystems produce a significant carbon […]

  • Hot Stuff: Unusual thermal diode...
    on September 18, 2020 at 2:04 PM

    You can feel it on your laptop and mobile phone. It's behind your refrigerator and office copy machine. While heat is desirable for appliances like a coffee maker, it can jeopardize the reliability and safety of electronic systems in other devices, causing premature failure at best and explosions […]

  • The observation of Bloch ferromagnetism...
    on September 18, 2020 at 1:34 PM

    Composite fermions are exotic quasi-particles found in interacting 2-D fermion systems at relatively large perpendicular magnetic fields. These quasi-particles, which are composed of an electron and two magnetic flux quanta, have often been used to describe a physical phenomenon known as the […]

  • The observation of Bloch ferromagnetism...
    on September 18, 2020 at 1:34 PM

    Composite fermions are exotic quasi-particles found in interacting 2-D fermion systems at relatively large perpendicular magnetic fields. These quasi-particles, which are composed of an electron and two magnetic flux quanta, have often been used to describe a physical phenomenon known as the […]

  • Resonant tunneling diode oscillators...
    on September 18, 2020 at 1:01 PM

    A semiconductor device that is promising for both generating and detecting terahertz radiation has been demonstrated by physicists at RIKEN. This may aid the development of high-performance integrated solutions for terahertz imaging and sensing applications as well as for high-speed, […]

  • Lighting the way to infrared detection
    on September 18, 2020 at 12:53 PM

    EPFL physicists propose a new path to detect infrared radiation with outstanding sensitivity, allowing detection of signals as low as that of a single quantum of light.

  • New calculation refines comparison of...
    on September 17, 2020 at 6:09 PM

    An international collaboration of theoretical physicists—including scientists from the U.S. Department of Energy's (DOE) Brookhaven National Laboratory (BNL) and the RIKEN-BNL Research Center (RBRC)—has published a new calculation relevant to the search for an explanation of the predominance of […]

  • Supercooled water is a stable liquid,...
    on September 17, 2020 at 6:00 PM

    Supercooled water is really two liquids in one. That's the conclusion reached by a research team at the U.S. Department of Energy's Pacific Northwest National Laboratory after making the first-ever measurements of liquid water at temperatures much colder than its typical freezing point.

  • Scientists reveal the power behind the...
    on September 17, 2020 at 1:19 PM

    In a potential step forward for imaging technology, scientists from the National Institute of Standards and Technology (NIST) and Sandia National Laboratories have developed a way to use neutrons to detect electric fields in spaces that are unreachable by conventional probes.

  • Scientists reveal the power behind the...
    on September 17, 2020 at 1:19 PM

    In a potential step forward for imaging technology, scientists from the National Institute of Standards and Technology (NIST) and Sandia National Laboratories have developed a way to use neutrons to detect electric fields in spaces that are unreachable by conventional probes.

  • Researchers develop the world's...
    on September 17, 2020 at 11:49 AM

    Researchers at Helmholtz Zentrum München and the Technical University of Munich (TUM) have developed the world's smallest ultrasound detector. It is based on miniaturized photonic circuits on top of a silicon chip. With a size 100 times smaller than an average human hair, the new detector can […]

  • Researchers 3-D print tiny multicolor...
    on September 16, 2020 at 8:27 PM

    Researchers have developed an automated 3-D printing method that can produce multicolor 3-D microstructures using different materials. The new method could be used to make a variety of optical components including optical sensors and light-driven actuators as well as multimaterial structures for […]

  • Molecular 'dances' determine how...
    on September 16, 2020 at 2:43 PM

    Scientists have uncovered a link between the microscopic movements of particles in a liquid and its ability to absorb heat.

  • Liquid water at 170 degrees Celsius:...
    on September 16, 2020 at 2:37 PM

    Using the X-ray laser European XFEL, a research team has investigated how water heats up under extreme conditions. In the process, the scientists were able to observe water that remained liquid even at temperatures of more than 170 degrees Celsius. The investigation revealed an anomalous dynamic […]

  • A new way to search for dark matter...
    on September 16, 2020 at 11:00 AM

    New research from Chalmers, together with ETH Zürich, Switzerland, suggests a promising way to detect elusive dark matter particles through previously unexplored atomic responses occurring in the detector material.

  • Liquid carbon characterized using a...
    on September 16, 2020 at 10:59 AM

    From common soot to precious diamonds, carbon is familiar in many guises, but there have been little more than glimpses of carbon in the liquid form. Researchers at the FERMI Free Electron Laser (FEL) source have now not only generated a liquid carbon sample, but have characterized its structure, […]

  • Theoretically, two layers are better...
    on September 15, 2020 at 8:50 PM

    Solar cells have come a long way, but inexpensive, thin film solar cells are still far behind more expensive, crystalline solar cells in efficiency. Now, a team of researchers suggests that using two thin films of different materials may be the way to go to create affordable, thin film cells with […]

  • Human white blood cells use molecular...
    on September 15, 2020 at 5:14 PM

    Human white blood cells, known as leukocytes, swim using a newly described mechanism called molecular paddling, researchers report in the September 15th issue of Biophysical Journal. This microswimming mechanism could explain how both immune cells and cancer cells migrate in various fluid-filled […]

  • Reviewing the quantum anomalous Hall...
    on September 15, 2020 at 2:00 PM

    A collaboration across three FLEET nodes has reviewed the fundamental theories underpinning the quantum anomalous Hall effect (QAHE).

  • Shining a light on disordered and...
    on September 15, 2020 at 12:51 PM

    A University of Tsukuba research team uses terahertz-frequency light to probe the unusual behavior of disordered systems to discover that the anonymously large vibrations in lysozyme can be explained by its glassy and fractal nature

  • Infinite chains of hydrogen atoms have...
    on September 14, 2020 at 4:40 PM

    An infinite chain of hydrogen atoms is just about the simplest bulk material imaginable—a never-ending single-file line of protons surrounded by electrons. Yet a new computational study combining four cutting-edge methods finds that the modest material boasts fantastic and surprising quantum […]

  • Physicists discover new magnetoelectric...
    on September 14, 2020 at 2:20 PM

    Electricity and magnetism are closely related: Power lines generate a magnetic field, rotating magnets in a generator produce electricity. However, the phenomenon is much more complicated: electrical and magnetic properties of certain materials are also coupled with each other. Electrical […]

  • Physicists discover new magnetoelectric...
    on September 14, 2020 at 2:20 PM

    Electricity and magnetism are closely related: Power lines generate a magnetic field, rotating magnets in a generator produce electricity. However, the phenomenon is much more complicated: electrical and magnetic properties of certain materials are also coupled with each other. Electrical […]

  • Attosecond pulses reveal electronic...
    on September 14, 2020 at 1:44 PM

    In the first experiment to take advantage of a new technology for producing powerful attosecond X-ray laser pulses, a research team led by scientists from the Department of Energy's SLAC National Accelerator Laboratory and Stanford University showed they can create electronic ripples in molecules […]

  • Collective quantum effect: When...
    on September 14, 2020 at 1:40 PM

    Many celestial objects such as stars or planets contain matter that is exposed to high temperatures and pressure—experts call it warm dense matter (WDM). Although this state of matter on earth only occurs in the earth's core, research on WDM is fundamental for various future areas such as clean […]

  • The Hall effect links superconductivity...
    on September 14, 2020 at 1:30 PM

    Over the past few decades, researchers have identified a number of superconducting materials with atypical properties, known as unconventional superconductors. Many of these superconductors share the same anomalous charge transport properties and are thus collectively characterized as "strange […]

  • Nonlinear polyatomic molecule, CaOCH3...
    on September 11, 2020 at 2:10 PM

    A team of researchers at Harvard University has developed a way to cool nonlinear polyatomic molecules to extremely cold temperatures. In their paper published in the journal Science, the group describes their method and possible uses for it. Eric Hudson with the University of California, Los […]

  • Quirky response to magnetism presents...
    on September 10, 2020 at 8:25 PM

    The search is on to discover new states of matter, and possibly new ways of encoding, manipulating, and transporting information. One goal is to harness materials' quantum properties for communications that go beyond what's possible with conventional electronics. Topological insulators—materials […]

  • New machine learning-assisted method...
    on September 10, 2020 at 8:23 PM

    For quantum optical technologies to become more practical, there is a need for large-scale integration of quantum photonic circuits on chips.

  • Test of wave function collapse suggests...
    on September 10, 2020 at 1:54 PM

    A team of researchers from Germany, Italy and Hungary has tested a theory that suggests gravity is the force behind quantum collapse and has found no evidence to support it. In their paper published in the journal Nature Physics, the researchers describe underground experiments they conducted to […]

  • Test of wave function collapse suggests...
    on September 10, 2020 at 1:54 PM

    A team of researchers from Germany, Italy and Hungary has tested a theory that suggests gravity is the force behind quantum collapse and has found no evidence to support it. In their paper published in the journal Nature Physics, the researchers describe underground experiments they conducted to […]

  • Spectral classification of excitons
    on September 10, 2020 at 1:41 PM

    Ultrathin layers of tungsten diselenide have potential applications in opto-electronics and quantum technologies. LMU researchers have now explored how this material interacts with light in the presence of strong magnetic fields.

  • Sound waves replace human hands in...
    on September 9, 2020 at 6:00 PM

    Mechanical engineers at Duke University have demonstrated a set of prototypes for manipulating particles and cells in a Petri dish using sound waves. The devices, known in the scientific community as "acoustic tweezers," are the first foray into making these types of tools, which have thus far been […]

  • Physicists use classical concepts to...
    on September 9, 2020 at 5:36 PM

    There they were, in all their weird quantum glory: ultracold lithium atoms in the optical trap operated by UC Santa Barbara undergraduate student Alec Cao and his colleagues in David Weld's atomic physics group. Held by lasers in a regular, lattice formation and "driven" by pulses of energy, these […]

  • Physicists explain mysterious dark...
    on September 9, 2020 at 5:09 PM

    A new theory about the nature of dark matter helps explain why a pair of galaxies about 65 million light-years from Earth contains very little of the mysterious matter, according to a study led by a physicist at the University of California, Riverside.

  • A Janus emitter for passive heat...
    on September 9, 2020 at 4:29 PM

    It is presently challenging to efficiently cool enclosed spaces such as stationary automobiles that trap heat via the greenhouse effect. In a new report in Science Advances, Se-Yeon Heo and a team of scientists in materials science, engineering and nanoarchitectonics in Japan and the Republic of […]

  • Technique prevents errors in quantum...
    on September 9, 2020 at 3:00 PM

    Even quantum computers make mistakes. Their computing ability is extraordinary, exceeding that of classical computers by far. This is because circuits in quantum computers are based on qubits that can represent not only zeroes or ones, but also superpositions of both states by using the principles […]

  • Magnetic whirls crystallize in two...
    on September 9, 2020 at 2:52 PM

    In a collaboration between experimental physicists and theoretical physicists in the framework of the Dynamics and Topology (TopDyn) excellence project, a system of many small magnetic whirls could be engineered to form a regularly ordered state. Such a transition from a disordered to an ordered […]

  • Magnetic whirls crystallize in two...
    on September 9, 2020 at 2:52 PM

    In a collaboration between experimental physicists and theoretical physicists in the framework of the Dynamics and Topology (TopDyn) excellence project, a system of many small magnetic whirls could be engineered to form a regularly ordered state. Such a transition from a disordered to an ordered […]

  • New computational model stands to make...
    on September 9, 2020 at 11:42 AM

    Scientists at the U.S. Department of Energy's Ames Laboratory have developed a new computational model that has opened up the potential to make one of their most powerful research tools even more so.

  • New microfluidic device minimizes loss...
    on September 9, 2020 at 9:00 AM

    A major collaborative effort that has been developing over the last three years between ASU and European scientists, has resulted in a significant technical advance in X-ray crystallographic sample strategies.

  • Quantum light squeezes the noise out of...
    on September 8, 2020 at 4:43 PM

    Researchers at the Department of Energy's Oak Ridge National Laboratory used quantum optics to advance state-of-the-art microscopy and illuminate a path to detecting material properties with greater sensitivity than is possible with traditional tools.

  • Betrayal or cooperation? Analytical...
    on September 8, 2020 at 3:00 PM

    When looking at humanity from a macroscopic perspective, there are numerous examples of people cooperating to form societies, countries, religions, and other groupings.

  • Kondo physics in antiferromagnetic Weyl...
    on September 8, 2020 at 1:20 PM

    Emerging quantum materials can be defined by topology and strong electron correlations, although their applications in experimental systems are relatively limited. Weyl semimetals incorporating magnetism offer a unique and fertile platform to explore emerging phenomena in developing topological […]

  • Predictions of magnetic field response...
    on September 8, 2020 at 11:54 AM

    NUS researchers have developed a parameter-free approach to quantitatively predict the response of two-dimensional (2-D) valleytronics materials to an external magnetic field. These predictions are important because they provide insights into the many-body effects into a fascinating property of […]

  • How do stone forests get their spikes?...
    on September 7, 2020 at 7:00 PM

    Stone forests—pointed rock formations resembling trees that populate regions of China, Madagascar, and many other locations worldwide—are as majestic as they are mysterious, created by uncertain forces that give them their shape.

  • Study identifies limits on the...
    on September 7, 2020 at 1:30 PM

    Quantum technologies, such as quantum computers, quantum sensing devices and quantum memory, have often been found to outperform traditional electronics in speed and performance, and could thus soon help humans to tackle a variety of problems more efficiently. Despite their huge potential, most […]

  • New evidence that the quantum world is...
    on September 4, 2020 at 8:08 PM

    New experimental evidence of a collective behavior of electrons to form "quasiparticles" called "anyons" has been reported by a team of scientists at Purdue University.

  • New technology lets quantum bits hold...
    on September 4, 2020 at 3:09 PM

    Quantum bits, or qubits, can hold quantum information much longer now thanks to efforts by an international research team. The researchers have increased the retention time, or coherence time, to 10 milliseconds—10,000 times longer than the previous record—by combining the orbital motion and […]

  • Extracting order from a quantum...
    on September 4, 2020 at 1:50 PM

    In physics, it is essential to be able to show a theoretical assumption in actual, physical experiments. For more than a hundred years, physicists have been aware of the link between the concepts of disorder in a system, and information obtained by measurement. However, a clean experimental […]

  • Quantum leap for speed limit bounds
    on September 4, 2020 at 1:10 PM

    Nature's speed limits aren't posted on road signs, but Rice University physicists have discovered a new way to deduce them that is better—infinitely better, in some cases—than previous methods.

  • Physicists nudge atoms within less than...
    on September 2, 2020 at 11:00 PM

    Scientists from Regensburg and Zurich have found a fascinating way to push an atom with controlled forces so quickly that they can choreograph the motion of a single molecule within less than a trillionth of a second. The extremely sharp needle of their unique ultrafast microscope serves as the […]

  • Revolutionary quantum breakthrough...
    on September 2, 2020 at 6:00 PM

    The world is one step closer to having a totally secure internet and an answer to the growing threat of cyber-attacks, thanks to a team of international scientists who have created a unique prototype which could transform how we communicate online.

  • A molecular approach to quantum...
    on September 2, 2020 at 2:10 PM

    The technology behind the quantum computers of the future is fast developing, with several different approaches in progress. Many of the strategies, or "blueprints," for quantum computers rely on atoms or artificial atom-like electrical circuits. In a new theoretical study in the journal Physical […]

  • Researchers manipulate two bits in one...
    on September 1, 2020 at 2:00 PM

    Researchers at Delft University of Technology have succeeded in independently manipulating two different types of magnetism within a single atom. The results are relevant for the development of extremely small forms of data storage. In time, this new discovery could make it possible to store two […]

  • New evidence for quantum fluctuations...
    on August 31, 2020 at 4:54 PM

    Among all the curious states of matter that can coexist in a quantum material, jostling for preeminence as temperature, electron density and other factors change, some scientists think a particularly weird juxtaposition exists at a single intersection of factors, called the quantum critical point […]

  • New theory hints at more efficient way...
    on August 31, 2020 at 2:41 PM

    In 2019, Google claimed it was the first to demonstrate a quantum computer performing a calculation beyond the abilities of today's most powerful supercomputers.

  • Google conducts largest chemical...
    on August 28, 2020 at 1:00 PM

    A team of researchers with Google's AI Quantum team (working with unspecified collaborators) has conducted the largest chemical simulation on a quantum computer to date. In their paper published in the journal Science, the group describes their work and why they believe it was a step forward in […]

  • Quantum simulation of quantum crystals
    on August 27, 2020 at 5:32 PM

    The quantum properties underlying crystal formation can be replicated and investigated with the help of ultracold atoms. A team led by Dr. Axel U. J. Lode from the University of Freiburg's Institute of Physics has now described in the journal Physical Review Letters how the use of dipolar atoms […]

  • Cosmic rays may soon stymie quantum...
    on August 26, 2020 at 3:00 PM

    The practicality of quantum computing hangs on the integrity of the quantum bit, or qubit.