Articles tagged with Atomic Physics
Recent advances enable control of individual atoms used in quantum information processing, paving the way for creation of powerful computers and highly sensitive detectors. Researchers explore ways to transmit quantum information over long distances and scale up the number of qubits.
The Lancet series highlights the need for full recognition of medical physics as a profession to ensure patient safety. Inadequate training and recognition can lead to fatal mistakes, emphasizing the importance of proper education and authorisation.
Physicists at NIST have demonstrated a super-stable laser operating in a minivan, showing its potential for field use in geodesy, hydrology and space-based physics experiments. The laser was tested with the vehicle stationary and moving at speeds of less than 1 meter per second, remaining stable enough for some applications.
Physicists at UW-Madison created an atomic circuit that may help quantum computing become a reality by exerting control over two atoms for a short period. The achievement uses neutral atoms to create a controlled-NOT gate, a basic type of circuit essential for any quantum computer.
The American Physical Society has released a report outlining concrete steps to help the US achieve its goals of downsize the nuclear arsenal, prevent the spread of atomic bombs, and keep the stockpile safe and secure. The report recommends technologies such as nuclear archaeology to validate nations' production of atomic material.
Graphene nanodomes, formed by concentric rings of carbon atoms, offer new insight into graphene growth and potential methods for assembling components of graphene-based computer circuits. The discovery enables varying the size of the carbon domes from a few nanometers to hundreds of nanometers across.
Researchers have developed techniques to control most atoms using atomic coilguns and lasers, enabling the determination of neutrino mass and potential applications in atomic physics. The breakthroughs use a combination of supersonic beam technology and single-photon cooling methods.
A tiny spectrometer has been designed and demonstrated at NIST, offering precision laser calibration for atomic physics research. The device could replace table-top-sized instruments and improve instrumentation used to measure length, chemicals, or atmospheric gases.
Researchers can now observe oscillating atoms in an excited bismuth crystal using high-energy X-ray free-electron lasers, revealing new insights into atomic activity. The development of linear accelerator-based X-ray sources holds promise for studying sub-picosecond science and its potential applications in chemistry and biology.
Scientists at The University of Texas at Austin have developed a new technique for quantum cooling that uses lasers to create a one-way wall. This innovation could lead to advances in atomic clocks and the manipulation of atoms and molecules at extremely low temperatures, enabling researchers to test laws of quantum physics.
The chip-scale atomic clock is the world's smallest, consuming less than 75 thousandths of a watt and stable to one part in 10 billion. It has potential uses in wireless communications, GPS receivers, and could replace quartz crystal oscillators in common products with improved time keeping.
Researchers at Georgia Institute of Technology have developed the first storage ring to confine and guide ultra-cold neutral atoms in a circular path. The Nevatron ring marks a step toward creating atom fiber optics that could improve aircraft guidance systems and open new areas of study in basic physics.
Glenn Agnolet's research uses Self-Assembled Tunnel Junctions (SATJs) to distinguish molecules based on their vibrational modes. By studying acetylene molecules on platinum, he found that the coupling between the molecule and electrons is ten times larger than expected.
A team of MIT researchers has successfully created an atom amplifier, increasing the intensity of a beam of atoms while maintaining their precise quantum mechanical wave formation. This achievement completes the laser analogy and has significant implications for precision sensors in navigation, geological exploration, and atomic clocks.
Researchers find that atoms in super-cooled metals exhibit clustered motion, a phenomenon crucial for understanding bulk metallic glasses with unique properties. This discovery has significant implications for various technical applications, including industry and military uses.
Scientists at JILA have successfully cooled a gas of potassium atoms to temperatures near absolute zero, creating a Fermi degenerate gas. This achievement demonstrates the behavior of fermions, which are essential building blocks of matter, and could lead to breakthroughs in atomic clock technology and electronic devices.
Physicists have successfully created an atom laser from a Bose-Einstein condensate using light manipulation, building on previous research funded by the Office of Naval Research. The NIST atom laser produces a highly directional beam with improved collimation compared to earlier experiments.
Researchers at Johns Hopkins University and Bell Labs have found clues that subvert the natural law of thermal expansion, suggesting the possibility of creating composite materials that actually shrink under heat. This discovery could lead to significant advancements in various fields, including computing and telecommunications.
Researchers from Stanford University and IBM's Almaden Research Center successfully measured forces of infinitesimal magnitude for the first time using a new method called magnetic resonance force microscopy. The technique enables the detection of atto-newton forces, which are one billionth of a billionth of a newton.