Articles tagged with Diamond
Scientists at UC Santa Barbara have successfully manipulated a quantum bit using laser light, enabling more unified and versatile control than conventional methods. This breakthrough opens up the possibility of exploring new solid-state quantum systems and potentially leading to the creation of more efficient quantum computers.
Polycrystalline diamond is used to manufacture monolithic components for optical circuits, combining integrated optics with mechanical elements. The material's high refractive index, low absorption, and modulus of elasticity enable efficient photon transport and robustness.
Researchers from NUS have successfully created a 'superheated' water that can corrode diamonds by attaching a layer of graphene. This novel discovery has wide-ranging industrial applications, including environmentally-friendly degradation of organic wastes and laser-assisted etching of semiconductor or dielectric films.
Studies reveal ancient ocean diamonds, soil depletion drives early Holocene lake acidification, and modeling world's largest rivers to understand their diversity. Insects' colorful evolution also sheds light on environmental factors.
Researchers create nanoscale MRI using tiny defects in diamonds, enabling detailed visualization of molecules. The technology could revolutionize diagnoses by examining damage on DNA strands or identifying cancer cells with unprecedented resolution.
Researchers at ICFO developed a technique to scan individual cells using artificial atoms, which can detect weak magnetic fields generated by biological molecules. This breakthrough enables non-invasive diagnosis and better understanding of intracellular processes.
A proof-of-concept device that combines a single nitrogen-vacancy centre with an optical resonator and waveguide has been created. The device, described as the 'building block of future quantum networks,' could enable faster computers for certain problems.
Researchers at the University of Pennsylvania have developed a new microscopy method to study wear at the atomic scale. They successfully demonstrated the transfer of material from one surface to another, revealing the mechanisms behind this process. The findings provide crucial insights into improving nanoscale devices and machines.
Research published in PLOS ONE found that kids who perform acts of kindness are happier and find greater acceptance among their peers. Kind acts, such as giving someone lunch or visiting a pleasant place, increased children's well-being and improved their relationships with classmates.
Researchers have created a new type of nanometer-scale diamond tip for thermal processing, which exhibits exceptional wear resistance and durability. The tip can scan surfaces for distances exceeding 1.2 meters without measurable wear, opening up new possibilities for AFM applications.
Scientists have developed a way to generate super-high pressures without using shock waves, allowing them to study materials at conditions corresponding to the core of gas giant planets. This breakthrough could lead to new revelations about how the Earth evolved and how iron functions at extremes.
Astronomers have identified a super-Earth called 55 Cancri e as a likely diamond planet, composed primarily of carbon in the form of graphite and diamond. The planet's mass is eight times greater than Earth's, and it orbits its star at hyper speed, with a surface temperature of about 3,900 degrees Fahrenheit.
Scientists at Carnegie Institution have observed a new form of very hard carbon clusters that are unusual in their mix of crystalline and disordered structure. These clusters can indent diamond, indicating they are superhard, and their unique structure has potential applications for various uses.
Scientists at SLAC National Accelerator Laboratory have improved the Linac Coherent Light Source (LCLS) by using a diamond filter to create narrower X-ray wavelength bands, enabling sharper images of materials and molecules. This advancement promises to speed discoveries and add new scientific capabilities.
A Japanese research team identified a structural change in a protein that confers pressure-resistant properties on deep-sea bacteria. This finding may help guide the design of enzymes for use in high-pressure chemical industrial processes, exploiting the unique adaptation mechanisms of these organisms.
Researchers at Harvard University have successfully created room-temperature quantum bits that can store information for nearly two seconds. This achievement is a significant step towards building a functional quantum computer and opens up new possibilities for various applications such as quantum cash and secure communications.
Using synthetic diamond, researchers achieved a record-breaking memory time of over one second at room temperature, surpassing previous materials that required cryogenic cooling. This breakthrough opens up potential for novel solid-state quantum sensors and quantum information processing applications.
Researchers are working on developing a scalable quantum computer using electron spins and nitrogen-vacancy centers in diamonds. The goal is to overcome the limitations of silicon technology, enabling complex quantum calculations.
Researchers at the University of Southampton have discovered a unique volcanic process called fluidised spray granulation, which creates well-rounded particles containing diamond fragments. This process has significant implications for understanding eruption dynamics and constraints on vent conditions, particularly gas velocity.
Researchers at Northwestern University develop a new theory of networks, establishing relationships between disparate topics such as friendship paradoxes and material properties. The study reveals that cascading processes can be controlled and collective behavior depends on network properties, opening new avenues for disease treatment ...
Researchers at USC and international partners successfully built a quantum computer inside a diamond, showcasing solid-state computing's potential. The device protects against decoherence, a major obstacle to quantum systems, by utilizing microwave pulses to stabilize electron spin rotation.
Researchers at Argonne National Laboratory have discovered a new pathway for creating nanocrystalline-diamond thin films that can significantly improve the performance of certain types of integrated circuits. By reducing thermal budget, these materials can sustain higher current densities, leading to more efficient electronic devices.
Acidification provides the thrust for kimberlites to ascend through the Earth's crust, with assimilated xenoliths playing a crucial role in facilitating the process. This discovery enhances understanding of kimberlite genesis and will aid in searching for new diamond-bearing ores.
By using diamonds and dust to simulate extreme pressures, researchers gained new insights into calcium-silicate-hydrate, a critical binder in concrete. The study aims to reduce carbon emissions and create stronger, more efficient cements.
Researchers at Ohio State University found that carbon-rich planets could form with a core and mantle, but these cores would be very carbon-rich and mantles dominated by diamond. This means no geothermal energy, plate tectonics, or magnetic field on such planets.
Penn and Brown researchers discovered an aspect of friction on the nanoscale that may lead to a better understanding of earthquakes. The team used atomic force microscopy to simulate rock-on-rock contact with different materials, revealing stark differences in frictional aging.
Researchers have achieved a record pressure of 50 megabars in a diamond experiment at the National Ignition Facility, replicating conditions believed to exist in super-Earths. The use of ramp-compression technique allowed for higher pressures than standard near-instantaneous shock-physics experiments.
Researchers have successfully fabricated ultrananocrystalline diamond nanowires with exceptional electrical properties, including sensitivity to gas molecule adsorption at grain boundaries. The discovery offers new possibilities for advanced nanoscale sensors.
Researchers propose using single photons and metamaterials for more powerful computers. The technology could harness the principles of quantum mechanics, allowing for more efficient data processing.
Scientists at Stanford University have created a new, super-hard form of carbon called amorphous diamond, which has the same strength in all directions as traditional diamond. This breakthrough material could lead to innovative applications such as cutting tools and wear-resistant parts for transportation.
Researchers develop scalable diamond-based devices with silver coating, enabling efficient photon emission and control. The technology supports the creation of robust quantum computers and sensitive magnetometers, opening new avenues for applications in quantum information processing and nanoscale measurements.
Scientists have discovered a common defect in diamonds that may be suitable for use in quantum computers. The nitrogen-vacancy (NV) center's energy level properties were studied using cryogenic temperatures.
Researchers have established a dynamic Jahn-Teller effect in defective diamonds, a finding that will aid the development of diamond-based quantum computers. The study's results show how the lattice distorts to stabilize and achieve lower energy states.
Scientists have discovered a new form of carbon capable of withstanding extreme pressure stresses, surpassing that of diamond. The amorphous material was created by compressing glassy carbon to above 400,000 times normal atmospheric pressure.
Researchers at Harvard University have successfully controlled the rate of photon emission from luminescent imperfections in diamond, a crucial step towards developing scalable quantum networks. The breakthrough uses nitrogen-vacancy centers in diamond to emit red photons at room temperature.
A new method developed at NIST enables the creation of unique features in diamond, allowing for precise cuts and potentially leading to improvements in nanometrology. The method could also improve MEMS devices used in cell phones, gyroscopes, and medical implants, making them more durable and efficient.
Researchers found diamonds from the lower mantle contain compositions consistent with oceanic crust, suggesting slabs of oceanic crust sank into the lower mantle and cycled back up. The discovery provides direct evidence for the Earth's carbon cycle extending to great depths.
Researchers found evidence of oceanic crust in ultra-deep diamonds, suggesting it can be transported from the lower to upper mantle via large-scale upwelling. The discovery provides new insights into the Earth's mantle recycling process.
Researchers have found evidence of the carbon cycle extending to the lower mantle, where it is believed to originate from ocean crust. The discovery was made in 'superdeep' diamonds from Brazil that contain inclusions with chemical compositions indicative of deep-sea environments.
A team of scientists will explore the deep carbon cycle to uncover information about carbon hundreds of miles below Earth's surface. They aim to convert carbon dioxide into a rock-like material and potentially discover new materials with industrial applications.
A team of astronomers using CSIRO's radio telescope discovered a small planet made of diamond orbiting an unusual star called PSR J1719-1438. The discovery provides insight into the evolution of binary systems and the formation of 'diamond planets', which are thought to be composed of crystalline material.
Researchers at Vanderbilt University have created microelectronic devices out of thin films of nanodiamond, which can operate at higher speeds and require less power than silicon-based devices. The diamond-based devices are also resistant to radiation damage and can function in extremely high or low temperatures.
Researchers analyzed over 4,000 mineral inclusions in diamonds to determine when the Wilson cycle of plate tectonics began. The study found that continents started breaking apart and colliding around three billion years ago, leading to the growth of the Earth's continental crust and the distribution of ores and materials.
Researchers analyzed data from over 4,000 mineral inclusions in diamonds to determine that the Wilson cycle of plate tectonics began around 3 billion years ago. This marks the start of the process that shaped the Earth's continental crust and led to mountain building and ocean basin closures.
Researchers developed a novel technique to image single biological molecules in living cells using diamond's nitrogen vacancy defect. This breakthrough could lead to new tools for diagnosing and treating diseases like cancer, with potential to reveal the inner workings of life on the molecular scale.
Researchers at Lawrence Livermore National Laboratory have developed a new form of diamond aerogel that is lighter than air and has exceptional optical properties. This material could improve the efficiency of telescopes, eyeglasses, and other devices by reducing reflection.
Researchers at the University of Calgary have successfully created a node in a quantum network using impurities in diamonds. Impurities in diamonds can be used to store information encoded onto their quantum state, which can be controlled and read out using light.
Researchers have made significant progress in creating efficient single-photon sources using fluorescent 'defect centers' in diamond. These structures can be used to implement provably secure quantum cryptography schemes and potentially build solid-state quantum computers. The team's innovations include the development of nanofabricati...
A gas-giant planet orbiting a sun-like star has been found to be rich in carbon, with rocks potentially made of pure diamond or graphite. The discovery challenges conventional planetary chemistry and raises questions about the possibility of life on this extreme world.
A team of researchers from Washington University in St. Louis has found no evidence of nanodiamonds, a key component of the YD impact hypothesis, in sedimentary deposits dating to the Younger Dryas period. The discovery suggests that the catastrophic event thought to have killed off North American megafauna may not have occurred.
Researchers have made a breakthrough in finding diamonds, discovering that kimberlites owe their origin to hot mantle plumes rising from the core-mantle boundary. This new understanding will help geologists concentrate their search for diamond-bearing rocks within ancient cratons, increasing the odds of finding precious gems.
Physicists have proposed a transition from quantum to classical world through decoherence, an evolutionary process similar to Charles Darwin's natural selection. The research uses advanced scanning gate microscopy to measure scars in quantum dots, providing insight into the bridge between the two realms.
Researchers at the Wuhan Institute of Physics and Mathematics have made a breakthrough in developing diamond nitrogen vacancy materials for room-temperature quantum computing. The team's discovery could lead to significant advances in condensed matter physics, quantum information science, and diamond making technology.
Researchers have discovered a diamond-like material BC5 with exceptional hardness and resistance to fracture, as well as superconducting properties. The material's unique structure and properties make it suitable for designing new superconducting nano-electromechanical systems and high-pressure devices.
Researchers created a novel diamond nanowire device that can generate single photons, controlled at the atomic scale. The device leverages imperfections in the diamond crystal to act as a source of individual photons, with applications in advanced imaging and quantum communications.
Researchers at Harvard University have created a diamond-based nanowire device that improves the performance of single photon sources, enabling fast and secure computing with light. This breakthrough could lead to new applications in quantum cryptography, quantum computing, and magnetic field imaging.
Researchers developed a technique to triple the number of events in reading qubits, strengthening the signal and enabling more efficient quantum data storage. This approach uses the spin of Nitrogen nuclei to add steps to the process, potentially paving the way for practical quantum computers at room temperature.
The AAAS Kavli Science Journalism Awards recognize innovative storytelling on scientific topics. The 2009 winners include 'Diamond Factory,' a TV feature on lab-grown diamonds, and 'A Very Lucky Wind,' a radio story exploring randomness and probability.
Researchers at Northwestern University developed nanocrystalline diamond probes that outperform commercially available silicon nitride probes by 10 times in terms of durability. The new probes can accurately predict wear and have applications in atomic force microscopy.
Researchers in Australia have developed the first efficient diamond Raman laser, achieving an efficiency of 63.5%, comparable to existing lasers built with other materials. This technology has potential applications in defense technologies, trace gas detectors, medical devices, and satellite mapping.